diff --git a/.tours/03-debug-and-recovery.tour b/.tours/03-debug-and-recovery.tour
index 9a866b6..2dcffb4 100644
--- a/.tours/03-debug-and-recovery.tour
+++ b/.tours/03-debug-and-recovery.tour
@@ -23,7 +23,7 @@
     },
     {
       "file": "src/app/styles.css",
-      "line": 216,
+      "line": 217,
       "anchor": "@media (max-width: 960px)",
       "description": "The site of defect D1. This block used to say `.na-rail { display: none }`. CSS owned visibility, React owned mounting and gated on data — so a WebGL renderer was mounted into a 0x0 box, threw, and took the app down. The rail is now a bottom panel instead: one owner, no hidden-but-mounted state."
     },
diff --git a/HANDOFF.md b/HANDOFF.md
index 7be87f4..87cfc44 100644
--- a/HANDOFF.md
+++ b/HANDOFF.md
@@ -1,6 +1,6 @@
 # NodeAgent developer handoff
 
-Read this file first, then [the runtime walkthrough](docs/START_HERE.md). This review candidate starts from canonical `4e525fd0`. The separately preserved Pi draft is not integrated. Independent source and installed-consumer review passes for the bounded slice below. The [portable judgment](evidence/current-consumer-20260905/judge/E6e_NODEAGENT_CURRENT_CONSUMER_FINAL_JUDGE.md.txt), manifest and Git history identify the reviewed implementation and its later publication metadata.
+Read this file first, then [the runtime walkthrough](docs/START_HERE.md). The current consumer/recovery repair merged in PR4 at canonical `5362505`; the source-header follow-on below starts from that exact revision. The separately preserved Pi draft is not integrated. Independent source and installed-consumer review passes for the bounded slice below. The [portable judgment](evidence/current-consumer-20260905/judge/E6e_NODEAGENT_CURRENT_CONSUMER_FINAL_JUDGE.md.txt), manifest and Git history identify the reviewed implementation and its later publication metadata.
 
 A developer can run the repository's local scenario and generate a separate chat application without credentials. Both chats use scripted local adapters; displayed confidence numbers come from fixtures. Their browser conversations reset on reload. The library's durable/SQLite demonstration is a separate integration and does not persist either browser chat.
 
@@ -30,9 +30,16 @@ node e2e/current-consumer-recovery-proof.mjs "<generated app>" "<new recovery ev
 
 Separate offline frame/durable/SQLite runs completed. SQLite closed/reopened the retained database and replayed the same frame with one journal entry; lease exclusion, expiry recovery and fencing passed. Use `nodeagent:frame:smoke`, `nodeagent:durable:smoke` and `nodeagent:sqlite:smoke` for that separate library integration. Their fixture confidence is not an external provider measurement.
 
-Remaining limits are explicit. Source-header text still overflows by 21 pixels in the 390-pixel, doubled-computed-text fixture; the changed recovery/composer regions fit and remain visible. The text fixture is not an operating-system zoom certificate. The source graph still needs its own visual/readability assessment. There is no React render-error boundary or New Thread control. Full visual, responsive, accessibility and performance grades remain null. Source full audit has nine development advisories, including one critical; the locked generated app has four development advisories, three high and one low. Both recorded production-only audits have zero findings. Those full-audit findings remain open.
+Remaining limits are explicit. The prior source-header overflow is corrected by the separately judged header follow-on below; existing enlarged empty-state clipping and graph readability remain open. The text fixture is not an operating-system zoom certificate. The source graph still needs its own visual/readability assessment. There is no React render-error boundary or New Thread control. Full visual, responsive, accessibility and performance grades remain null. Source full audit has nine development advisories, including one critical; the locked generated app has four development advisories, three high and one low. Both recorded production-only audits have zero findings. Those full-audit findings remain open.
 
 No provider, Convex, login, external-host hook, deployment or Pi capability was activated. The historical dependency checkpoint and previous promotion records retain their original outcomes. This handoff closes the bounded offline consumer and response-recovery implementation for independent review; it does not claim complete repository readiness.
 
 
-Independent replay adds130 checks/34 captures, including late Stop after an actual completed tool result and two distinct failed-response Retry identities. Fresh41 tests, typecheck and citations pass. The original publication judgment records60 line-ending mismatches; packet-local attributes preserve those exact raw bytes before commit. Existing header overflow, graph readability, development advisories, browser reset and provider/durability limits remain unchanged. This local source/installed proof does not certify deployment or the whole product.
+Independent replay adds130 checks/34 captures, including late Stop after an actual completed tool result and two distinct failed-response Retry identities. Fresh41 tests, typecheck and citations pass. The original publication judgment records60 line-ending mismatches; packet-local attributes preserve those exact raw bytes before commit. Graph readability, development advisories, browser reset and provider/durability limits remain unchanged; the later header repair is reviewed separately below. This local source/installed proof does not certify deployment or the whole product.
+
+
+## Source header reflow follow-on
+
+The two resource links now stay together when enlarged text requires a second row. The header grows with its content; all six normal header layouts remain unchanged. [The portable packet](evidence/header-reflow-20260905/README.md) contains matched before/after pixels, the independent60-check/14-capture review and the old-layout knockout. Root's72 header assertions,145 existing response-recovery assertions/38 captures,41 tests, typecheck/build and citations pass. No generated consumer or runtime adapter changed. The prior44-criterion assessment still binds5362505; this bounded repair does not automatically replace its historical scores or certify complete grades.
+
+Replay the current header with `node e2e/header-reflow-proof.mjs . "<absolute new output directory>" after` after installing the checked-in dependencies and Chromium. The source-bound record and Git history identify this follow-on's eventual commit; no production deployment is claimed.
diff --git a/docs/codebase/TESTING.md b/docs/codebase/TESTING.md
index 94b3169..4ef6513 100644
--- a/docs/codebase/TESTING.md
+++ b/docs/codebase/TESTING.md
@@ -50,7 +50,7 @@ from `src/`. See `docs/SIMPLIFICATION_REPORT.md`.
 
 For the browser gate, the equivalent is to re-hide the graph rail on narrow
 screens (`src/app/styles.css`, the `@media (max-width: 960px)` block at line
-181). `e2e/capture-journey-at-width.mjs` asserts the graph canvas is not
+217). `e2e/capture-journey-at-width.mjs` asserts the graph canvas is not
 zero-width — the *cause* of defect D1, not its symptom — so any mechanism that
 re-hides the rail turns the gate red.
 
diff --git a/e2e/header-reflow-proof.mjs b/e2e/header-reflow-proof.mjs
new file mode 100644
index 0000000..60894b1
--- /dev/null
+++ b/e2e/header-reflow-proof.mjs
@@ -0,0 +1,87 @@
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import assert from 'node:assert/strict';
+import {createRequire} from 'node:module';
+import {pathToFileURL} from 'node:url';
+import {createHash} from 'node:crypto';
+import {execFileSync} from 'node:child_process';
+const root=path.resolve(process.argv[2]??'');
+const output=path.resolve(process.argv[3]??'');
+const phase=process.argv[4];
+assert.ok(process.argv[2] && process.argv[3] && ['before','after'].includes(phase));
+await fs.mkdir(output,{recursive:false});
+const require=createRequire(path.join(root,'package.json'));
+const {chromium}=require('playwright');
+const {createServer}=await import(pathToFileURL(require.resolve('vite')).href);
+const sha=b=>createHash('sha256').update(b).digest('hex');
+const files=['src/app/styles.css','src/features/node-agent/components/NodeAgentDemoApp.tsx','src/features/node-agent/components/NodeAgentThread.tsx','src/features/node-agent/runtime/nodeAgentChatAdapter.ts','package.json','package-lock.json'];
+const hashes=async()=>Object.fromEntries(await Promise.all(files.map(async f=>[f,sha(await fs.readFile(path.join(root,f)))])));
+const report={proof:'NODEAGENT-ENLARGED-HEADER-01',phase,at:new Date().toISOString(),head:execFileSync('git',['rev-parse','HEAD'],{cwd:root}).toString().trim(),sourceBefore:await hashes(),checks:[],cells:[],error:null,fullGrades:null};
+function check(name,passed){report.checks.push({name,passed:Boolean(passed)});assert.ok(passed,name);}
+let server,browser;
+try{
+  server=await createServer({root,envDir:false,server:{host:'127.0.0.1',port:0,strictPort:true,open:false}});
+  await server.listen();
+  const address=server.httpServer.address();
+  const base=`http://127.0.0.1:${address.port}`;
+  browser=await chromium.launch({headless:true});
+  report.browser=browser.version();
+  for(const width of [320,390,768,1024,1440,1920])for(const scale of [1,2]){
+    const context=await browser.newContext({viewport:{width,height:900},reducedMotion:'reduce'});
+    const page=await context.newPage();
+    const errors=[];page.on('pageerror',e=>errors.push(String(e)));
+    await context.route('**/*',route=>{const u=new URL(route.request().url());return u.origin===base||['fonts.googleapis.com','fonts.gstatic.com'].includes(u.hostname)?route.continue():route.abort();});
+    await page.goto(base,{waitUntil:'networkidle'});
+    await page.locator('.na-appbar').waitFor();
+    await page.evaluate(()=>document.fonts.ready);
+    const fonts=await page.evaluate(()=>({ready:document.fonts.status,manrope:document.fonts.check('14px Manrope'),mono:document.fonts.check('11px "JetBrains Mono"')}));
+    if(scale===2)await page.evaluate(()=>{
+      const list=Array.from(document.querySelectorAll('body,body *')).map(e=>({e,size:parseFloat(getComputedStyle(e).fontSize)}));
+      for(const {e,size}of list)if(Number.isFinite(size))e.style.fontSize=`${size*2}px`;
+    });
+    await page.evaluate(()=>new Promise(r=>requestAnimationFrame(()=>requestAnimationFrame(r))));
+    const state=await page.evaluate(()=>{
+      const box=e=>{const r=e.getBoundingClientRect();return{x:r.x,y:r.y,width:r.width,height:r.height,right:r.right,bottom:r.bottom};};
+      const header=document.querySelector('.na-appbar');
+      const brand=document.querySelector('.na-brand');
+      const links=Array.from(header.querySelectorAll('a')).map(e=>({text:e.textContent.trim(),href:e.getAttribute('href'),box:box(e),scrollWidth:e.scrollWidth,clientWidth:e.clientWidth}));
+      return {viewport:{width:innerWidth,height:innerHeight},header:box(header),brand:box(brand),links,main:box(document.querySelector('.na-main')),documentOverflow:document.documentElement.scrollWidth-innerWidth,headerScrollWidth:header.scrollWidth,headerClientWidth:header.clientWidth,headerCss:{height:getComputedStyle(header).height,flexWrap:getComputedStyle(header).flexWrap,flexShrink:getComputedStyle(header).flexShrink},brandText:brand.textContent.trim()};
+    });
+    const name=`${phase}-${width}-text-${scale*100}`;
+    const html=await page.content();await fs.writeFile(path.join(output,name+'.html'),html);
+    await page.screenshot({path:path.join(output,name+'.png')});
+    const sidecar={...state,fonts,errors,resizeMethod:'All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.'};
+    await fs.writeFile(path.join(output,name+'.json'),JSON.stringify(sidecar,null,2)+'\n');
+    if(phase==='before'&&((scale===2&&width<=390)||(scale===1&&width===1440))){
+      await page.evaluate(()=>{const e=document.querySelector('.na-appbar');e.style.outline='3px solid #ff007f';e.style.outlineOffset='-3px';const label=document.createElement('div');label.id='proof-boundary';label.textContent='A · existing header owner · BEFORE';Object.assign(label.style,{position:'fixed',top:`${e.getBoundingClientRect().bottom+4}px`,left:'4px',padding:'2px 5px',background:'#ff007f',color:'white',font:'12px sans-serif',zIndex:'2147483647',pointerEvents:'none'});document.body.append(label);});
+      await fs.writeFile(path.join(output,name+'-boundary.html'),await page.content());
+      await page.screenshot({path:path.join(output,name+'-boundary.png')});
+    }
+    check(name+' no runtime exception',errors.length===0);
+    if(phase==='after'){
+      check(name+' header fits viewport',state.header.x>=-0.5&&state.header.right<=width+0.5&&state.headerScrollWidth<=state.headerClientWidth+1);
+      check(name+' branding stays inside header',state.brand.x>=state.header.x&&state.brand.right<=state.header.right+0.5&&state.brand.y>=state.header.y&&state.brand.bottom<=state.header.bottom+0.5);
+      check(name+' links remain visible and legible',state.links.length===2&&state.links.every(l=>l.box.x>=0&&l.box.right<=width+0.5&&l.box.y>=0&&l.box.bottom<=state.header.bottom+0.5&&l.scrollWidth<=l.clientWidth+1));
+      check(name+' main starts below header',state.main.y>=state.header.bottom-0.5);
+      const focus=[];
+      await page.keyboard.press('Tab');
+      for(let i=0;i<12&&focus.length<2;i++){
+        const f=await page.evaluate(()=>{const e=document.activeElement;if(!e?.matches('.na-appbar a'))return null;const r=e.getBoundingClientRect();return{text:e.textContent.trim(),left:r.left,right:r.right,top:r.top,bottom:r.bottom,focusVisible:e.matches(':focus-visible')};});
+        if(f&&!focus.some(x=>x.text===f.text))focus.push(f);
+        await page.keyboard.press('Tab');
+      }
+      check(name+' both native header links reachable by keyboard',focus.length===2&&focus.every(f=>f.focusVisible&&f.left>=0&&f.right<=width+0.5&&f.top>=0&&f.bottom<=900));
+      sidecar.focus=focus;await fs.writeFile(path.join(output,name+'.json'),JSON.stringify(sidecar,null,2)+'\n');
+    }
+    report.cells.push({name,...sidecar,pngSha256:sha(await fs.readFile(path.join(output,name+'.png')))});
+    await context.close();
+  }
+}catch(e){report.error=String(e.stack??e);process.exitCode=1;}
+finally{
+  await browser?.close();await server?.close();
+  report.sourceAfter=await hashes();
+  report.sourceUnchanged=JSON.stringify(report.sourceBefore)===JSON.stringify(report.sourceAfter);
+  report.passed=!report.error&&report.sourceUnchanged;
+  await fs.writeFile(path.join(output,'report.json'),JSON.stringify(report,null,2)+'\n');
+  console.log(JSON.stringify({proof:report.proof,phase,passed:report.passed,cells:report.cells.length,checks:report.checks.length,error:report.error}));
+}
diff --git a/evidence/header-reflow-20260905/.gitattributes b/evidence/header-reflow-20260905/.gitattributes
new file mode 100644
index 0000000..fa1385d
--- /dev/null
+++ b/evidence/header-reflow-20260905/.gitattributes
@@ -0,0 +1 @@
+* -text
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-HANDOFF-before-header.md.txt b/evidence/header-reflow-20260905/E6f-nodeagent-HANDOFF-before-header.md.txt
new file mode 100644
index 0000000..7be87f4
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-HANDOFF-before-header.md.txt
@@ -0,0 +1,38 @@
+# NodeAgent developer handoff
+
+Read this file first, then [the runtime walkthrough](docs/START_HERE.md). This review candidate starts from canonical `4e525fd0`. The separately preserved Pi draft is not integrated. Independent source and installed-consumer review passes for the bounded slice below. The [portable judgment](evidence/current-consumer-20260905/judge/E6e_NODEAGENT_CURRENT_CONSUMER_FINAL_JUDGE.md.txt), manifest and Git history identify the reviewed implementation and its later publication metadata.
+
+A developer can run the repository's local scenario and generate a separate chat application without credentials. Both chats use scripted local adapters; displayed confidence numbers come from fixtures. Their browser conversations reset on reload. The library's durable/SQLite demonstration is a separate integration and does not persist either browser chat.
+
+Use Node 22; this proof used Node 22.22.2. From this repository run `npm ci`, `npm test`, `npm run build` and `npm run tours:validate`. The 41 tests, typecheck/build, three tours/36 steps and 11 walkthrough citations pass. To generate a consumer, run `npm pack`, install that exact tarball in a new empty npm project, then use its installed CLI:
+
+```powershell
+node node_modules/nodeagent/bin/nodeagent.mjs doctor
+node node_modules/nodeagent/bin/nodeagent.mjs apps scaffold chat-ui --dir "../NodeAgent Chat" --auto
+Set-Location "../NodeAgent Chat"
+npm run dev
+```
+
+`--auto` performs normal install, demo, smoke and build. Keep the included template lock; use `npm ci` for repeatable reinstall. Existing-target refusal was verified with an owner sentinel and without force. Each failed and repaired consumer was retained separately.
+
+The original unlocked template resolved incompatible assistant-ui dependencies and failed its first real prompt despite smoke/build passing. A tested compatible template lock fixes that install seam without changing dependency ranges. The final packed consumer binds 242 source/tarball/installed files and the exact generated lock. Its tarball SHA-256 is `1a6e980a684f433fcdc80021eb5569fa5c4b94e09a71e8a2adbe5d821e654c69`. That package predates this final handoff/evidence metadata; it is an uncommitted candidate proof, not a published release certificate.
+
+Both current chats expose **Stop response**, visible incomplete/failed tool status, and explicit **Retry response**. Stop ends response display updates and keeps completed work. It cannot undo work already computed by the adapter, graph facts already recorded, durable work or external actions. Retry re-executes only the current response through the native runtime and preserves earlier turns. It is never automatic. A synchronous claim on the current response ID rejects immediate double activation; actual SDK IDs were observed to change on each retry, so a second failed response remains retryable. This is a local UI guarantee, not external-service idempotency or provider cancellation.
+
+[Portable evidence](evidence/current-consumer-20260905/README.md) contains the actual before boundaries, failure history, command logs, source bindings and final browser reports. The response-recovery run passed 289 checks and saved 76 captures across 320/390/768/1024/1440/1920 for both source and installed generated apps. It covers ordinary pointer/keyboard Stop, stable incomplete output, preserved earlier cards/graph snapshot, failure then explicit retry then failure again then explicit recovery, duplicate activation, pointer target stability, keyboard-visible error/Retry at enlarged text, and reload reset. An additional 12 turns produced 15 responses/60 cards in 21.182 seconds generated and 29.482 seconds source. These are bounded accumulation checks, not production longevity measurements.
+
+The unchanged first-run scenario separately passed 59 checks/25 captures on the final installed app, including eight sequential turns/32 cards in 13.968 seconds. Reproduce the two browser journeys from the source checkout with a fresh installed generated target and NEW output directories:
+
+```powershell
+node e2e/current-consumer-proof.mjs "<generated app>" "<new baseline evidence>"
+node e2e/current-consumer-recovery-proof.mjs "<generated app>" "<new recovery evidence>"
+```
+
+Separate offline frame/durable/SQLite runs completed. SQLite closed/reopened the retained database and replayed the same frame with one journal entry; lease exclusion, expiry recovery and fencing passed. Use `nodeagent:frame:smoke`, `nodeagent:durable:smoke` and `nodeagent:sqlite:smoke` for that separate library integration. Their fixture confidence is not an external provider measurement.
+
+Remaining limits are explicit. Source-header text still overflows by 21 pixels in the 390-pixel, doubled-computed-text fixture; the changed recovery/composer regions fit and remain visible. The text fixture is not an operating-system zoom certificate. The source graph still needs its own visual/readability assessment. There is no React render-error boundary or New Thread control. Full visual, responsive, accessibility and performance grades remain null. Source full audit has nine development advisories, including one critical; the locked generated app has four development advisories, three high and one low. Both recorded production-only audits have zero findings. Those full-audit findings remain open.
+
+No provider, Convex, login, external-host hook, deployment or Pi capability was activated. The historical dependency checkpoint and previous promotion records retain their original outcomes. This handoff closes the bounded offline consumer and response-recovery implementation for independent review; it does not claim complete repository readiness.
+
+
+Independent replay adds130 checks/34 captures, including late Stop after an actual completed tool result and two distinct failed-response Retry identities. Fresh41 tests, typecheck and citations pass. The original publication judgment records60 line-ending mismatches; packet-local attributes preserve those exact raw bytes before commit. Existing header overflow, graph readability, development advisories, browser reset and provider/durability limits remain unchanged. This local source/installed proof does not certify deployment or the whole product.
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-100.html
new file mode 100644
index 0000000..1955a82
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-100.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 562px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-100.json
new file mode 100644
index 0000000..c63d7ec
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-100.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 1024,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1024,
+    "height": 54,
+    "right": 1024,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 196.265625,
+    "height": 21.6875,
+    "right": 214.265625,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 877.8125,
+        "y": 17.203125,
+        "width": 66.484375,
+        "height": 18.59375,
+        "right": 944.296875,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 956.296875,
+        "y": 17.203125,
+        "width": 49.703125,
+        "height": 18.59375,
+        "right": 1006,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1024,
+    "height": 846,
+    "right": 1024,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1024,
+  "headerClientWidth": 1024,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 877.8125,
+      "right": 944.296875,
+      "top": 17.203125,
+      "bottom": 35.796875,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 956.296875,
+      "right": 1006,
+      "top": 17.203125,
+      "bottom": 35.796875,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-100.png
new file mode 100644
index 0000000..e4eff22
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-200.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-200.html
new file mode 100644
index 0000000..77178cc
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-200.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 562px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-200.json
new file mode 100644
index 0000000..bc31c8b
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-200.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 1024,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1024,
+    "height": 54,
+    "right": 1024,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "width": 366.515625,
+    "height": 43.390625,
+    "right": 384.515625,
+    "bottom": 48.1875
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 761.625,
+        "y": 7.90625,
+        "width": 132.96875,
+        "height": 37.1875,
+        "right": 894.59375,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 133,
+      "clientWidth": 133
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 906.59375,
+        "y": 7.90625,
+        "width": 99.40625,
+        "height": 37.1875,
+        "right": 1006,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 99,
+      "clientWidth": 99
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1024,
+    "height": 846,
+    "right": 1024,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1024,
+  "headerClientWidth": 1024,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 761.625,
+      "right": 894.59375,
+      "top": 7.90625,
+      "bottom": 45.09375,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 906.59375,
+      "right": 1006,
+      "top": 7.90625,
+      "bottom": 45.09375,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-200.png
new file mode 100644
index 0000000..0115323
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1024-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-100.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-100.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-100.json
new file mode 100644
index 0000000..2463137
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-100.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 1440,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1440,
+    "height": 54,
+    "right": 1440,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 196.265625,
+    "height": 21.6875,
+    "right": 214.265625,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1293.8125,
+        "y": 17.203125,
+        "width": 66.484375,
+        "height": 18.59375,
+        "right": 1360.296875,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1372.296875,
+        "y": 17.203125,
+        "width": 49.703125,
+        "height": 18.59375,
+        "right": 1422,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1440,
+    "height": 846,
+    "right": 1440,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1440,
+  "headerClientWidth": 1440,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 1293.8125,
+      "right": 1360.296875,
+      "top": 17.203125,
+      "bottom": 35.796875,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 1372.296875,
+      "right": 1422,
+      "top": 17.203125,
+      "bottom": 35.796875,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-100.png
new file mode 100644
index 0000000..8832f6b
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-200.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-200.html
new file mode 100644
index 0000000..8449c8f
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-200.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-200.json
new file mode 100644
index 0000000..c8767be
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-200.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 1440,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1440,
+    "height": 54,
+    "right": 1440,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "width": 366.515625,
+    "height": 43.390625,
+    "right": 384.515625,
+    "bottom": 48.1875
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1177.625,
+        "y": 7.90625,
+        "width": 132.96875,
+        "height": 37.1875,
+        "right": 1310.59375,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 133,
+      "clientWidth": 133
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1322.59375,
+        "y": 7.90625,
+        "width": 99.40625,
+        "height": 37.1875,
+        "right": 1422,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 99,
+      "clientWidth": 99
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1440,
+    "height": 846,
+    "right": 1440,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1440,
+  "headerClientWidth": 1440,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 1177.625,
+      "right": 1310.59375,
+      "top": 7.90625,
+      "bottom": 45.09375,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 1322.59375,
+      "right": 1422,
+      "top": 7.90625,
+      "bottom": 45.09375,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-200.png
new file mode 100644
index 0000000..f62d2d7
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1440-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-100.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-100.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-100.json
new file mode 100644
index 0000000..abe09cb
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-100.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 1920,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1920,
+    "height": 54,
+    "right": 1920,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 196.265625,
+    "height": 21.6875,
+    "right": 214.265625,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1773.8125,
+        "y": 17.203125,
+        "width": 66.484375,
+        "height": 18.59375,
+        "right": 1840.296875,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1852.296875,
+        "y": 17.203125,
+        "width": 49.703125,
+        "height": 18.59375,
+        "right": 1902,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1920,
+    "height": 846,
+    "right": 1920,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1920,
+  "headerClientWidth": 1920,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 1773.8125,
+      "right": 1840.296875,
+      "top": 17.203125,
+      "bottom": 35.796875,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 1852.296875,
+      "right": 1902,
+      "top": 17.203125,
+      "bottom": 35.796875,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-100.png
new file mode 100644
index 0000000..0fd47b4
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-200.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-200.html
new file mode 100644
index 0000000..8449c8f
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-200.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-200.json
new file mode 100644
index 0000000..394fd2d
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-200.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 1920,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1920,
+    "height": 54,
+    "right": 1920,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "width": 366.515625,
+    "height": 43.390625,
+    "right": 384.515625,
+    "bottom": 48.1875
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1657.625,
+        "y": 7.90625,
+        "width": 132.96875,
+        "height": 37.1875,
+        "right": 1790.59375,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 133,
+      "clientWidth": 133
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1802.59375,
+        "y": 7.90625,
+        "width": 99.40625,
+        "height": 37.1875,
+        "right": 1902,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 99,
+      "clientWidth": 99
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1920,
+    "height": 846,
+    "right": 1920,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1920,
+  "headerClientWidth": 1920,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 1657.625,
+      "right": 1790.59375,
+      "top": 7.90625,
+      "bottom": 45.09375,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 1802.59375,
+      "right": 1902,
+      "top": 7.90625,
+      "bottom": 45.09375,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-200.png
new file mode 100644
index 0000000..769d9b0
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-1920-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-100.html
new file mode 100644
index 0000000..1faa05a
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-100.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 220px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-100.json
new file mode 100644
index 0000000..717fd46
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-100.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 320,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 320,
+    "height": 54,
+    "right": 320,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 93.453125,
+    "height": 21.6875,
+    "right": 111.453125,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 173.8125,
+        "y": 4.5,
+        "width": 66.484375,
+        "height": 44,
+        "right": 240.296875,
+        "bottom": 48.5
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 252.296875,
+        "y": 4.5,
+        "width": 49.703125,
+        "height": 44,
+        "right": 302,
+        "bottom": 48.5
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 320,
+    "height": 846,
+    "right": 320,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 320,
+  "headerClientWidth": 320,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 173.8125,
+      "right": 240.296875,
+      "top": 4.5,
+      "bottom": 48.5,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 252.296875,
+      "right": 302,
+      "top": 4.5,
+      "bottom": 48.5,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-100.png
new file mode 100644
index 0000000..e0fd13f
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-200.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-200.html
new file mode 100644
index 0000000..90392be
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-200.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 220px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-200.json
new file mode 100644
index 0000000..35ed570
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-200.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 320,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 320,
+    "height": 96.390625,
+    "right": 320,
+    "bottom": 96.390625
+  },
+  "brand": {
+    "x": 18,
+    "y": 4,
+    "width": 168.90625,
+    "height": 43.390625,
+    "right": 186.90625,
+    "bottom": 47.390625
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 18,
+        "y": 47.390625,
+        "width": 132.96875,
+        "height": 44,
+        "right": 150.96875,
+        "bottom": 91.390625
+      },
+      "scrollWidth": 133,
+      "clientWidth": 133
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 162.96875,
+        "y": 47.390625,
+        "width": 99.40625,
+        "height": 44,
+        "right": 262.375,
+        "bottom": 91.390625
+      },
+      "scrollWidth": 99,
+      "clientWidth": 99
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 96.390625,
+    "width": 320,
+    "height": 803.609375,
+    "right": 320,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 320,
+  "headerClientWidth": 320,
+  "headerCss": {
+    "height": "96.3906px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 18,
+      "right": 150.96875,
+      "top": 47.390625,
+      "bottom": 91.390625,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 162.96875,
+      "right": 262.375,
+      "top": 47.390625,
+      "bottom": 91.390625,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-320-text-200.png
new file mode 100644
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-100.html
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@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-100.json
new file mode 100644
index 0000000..d10a8ce
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-100.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 390,
+    "height": 54,
+    "right": 390,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 93.453125,
+    "height": 21.6875,
+    "right": 111.453125,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 243.8125,
+        "y": 4.5,
+        "width": 66.484375,
+        "height": 44,
+        "right": 310.296875,
+        "bottom": 48.5
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 322.296875,
+        "y": 4.5,
+        "width": 49.703125,
+        "height": 44,
+        "right": 372,
+        "bottom": 48.5
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 390,
+    "height": 846,
+    "right": 390,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 390,
+  "headerClientWidth": 390,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 243.8125,
+      "right": 310.296875,
+      "top": 4.5,
+      "bottom": 48.5,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 322.296875,
+      "right": 372,
+      "top": 4.5,
+      "bottom": 48.5,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-100.png
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@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-200.json
new file mode 100644
index 0000000..fcdd04a
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-200.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 390,
+    "height": 96.390625,
+    "right": 390,
+    "bottom": 96.390625
+  },
+  "brand": {
+    "x": 18,
+    "y": 4,
+    "width": 168.90625,
+    "height": 43.390625,
+    "right": 186.90625,
+    "bottom": 47.390625
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 18,
+        "y": 47.390625,
+        "width": 132.96875,
+        "height": 44,
+        "right": 150.96875,
+        "bottom": 91.390625
+      },
+      "scrollWidth": 133,
+      "clientWidth": 133
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 162.96875,
+        "y": 47.390625,
+        "width": 99.40625,
+        "height": 44,
+        "right": 262.375,
+        "bottom": 91.390625
+      },
+      "scrollWidth": 99,
+      "clientWidth": 99
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 96.390625,
+    "width": 390,
+    "height": 803.609375,
+    "right": 390,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 390,
+  "headerClientWidth": 390,
+  "headerCss": {
+    "height": "96.3906px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 18,
+      "right": 150.96875,
+      "top": 47.390625,
+      "bottom": 91.390625,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 162.96875,
+      "right": 262.375,
+      "top": 47.390625,
+      "bottom": 91.390625,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-200.png
new file mode 100644
index 0000000..42c37b2
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-390-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-100.html
new file mode 100644
index 0000000..4c9e5e6
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-100.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 656px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-100.json
new file mode 100644
index 0000000..ef1b148
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-100.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 768,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 768,
+    "height": 54,
+    "right": 768,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 196.265625,
+    "height": 21.6875,
+    "right": 214.265625,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 621.8125,
+        "y": 4.5,
+        "width": 66.484375,
+        "height": 44,
+        "right": 688.296875,
+        "bottom": 48.5
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 700.296875,
+        "y": 4.5,
+        "width": 49.703125,
+        "height": 44,
+        "right": 750,
+        "bottom": 48.5
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 768,
+    "height": 846,
+    "right": 768,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 768,
+  "headerClientWidth": 768,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "wrap",
+    "flexShrink": "0"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+  "focus": [
+    {
+      "text": "Prototype ↗",
+      "left": 621.8125,
+      "right": 688.296875,
+      "top": 4.5,
+      "bottom": 48.5,
+      "focusVisible": true
+    },
+    {
+      "text": "GitHub ↗",
+      "left": 700.296875,
+      "right": 750,
+      "top": 4.5,
+      "bottom": 48.5,
+      "focusVisible": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-100.png
new file mode 100644
index 0000000..a767b5c
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-200.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-200.html
new file mode 100644
index 0000000..10a62fa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-200.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 656px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-200.json
new file mode 100644
index 0000000..6ec5a87
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-200.json
@@ -0,0 +1,94 @@
+{
+  "viewport": {
+    "width": 768,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 768,
+    "height": 54,
+    "right": 768,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "width": 366.515625,
+    "height": 43.390625,
+    "right": 384.515625,
+    "bottom": 48.1875
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-200.png
new file mode 100644
index 0000000..66661e6
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/after-768-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/report.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/report.json
new file mode 100644
index 0000000..6ae46b6
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-after-01/report.json
@@ -0,0 +1,1471 @@
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+    "package-lock.json": "9951aa3919121d6a1dbd5351ed58ae38b7befcf7a042f9a103919ede57cd23ce"
+  },
+  "sourceUnchanged": true,
+  "passed": true
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-100.html
new file mode 100644
index 0000000..9525f72
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-100.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 562px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-100.json
new file mode 100644
index 0000000..4539af7
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-100.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 1024,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1024,
+    "height": 54,
+    "right": 1024,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 196.265625,
+    "height": 21.6875,
+    "right": 214.265625,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 877.8125,
+        "y": 17.203125,
+        "width": 66.484375,
+        "height": 18.59375,
+        "right": 944.296875,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 956.296875,
+        "y": 17.203125,
+        "width": 49.703125,
+        "height": 18.59375,
+        "right": 1006,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1024,
+    "height": 846,
+    "right": 1024,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1024,
+  "headerClientWidth": 1024,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-100.png
new file mode 100644
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@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 562px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-200.json
new file mode 100644
index 0000000..9e9f442
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-200.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 1024,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1024,
+    "height": 54,
+    "right": 1024,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "width": 366.515625,
+    "height": 43.390625,
+    "right": 384.515625,
+    "bottom": 48.1875
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 761.625,
+        "y": 7.90625,
+        "width": 132.96875,
+        "height": 37.1875,
+        "right": 894.59375,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 133,
+      "clientWidth": 133
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 906.59375,
+        "y": 7.90625,
+        "width": 99.40625,
+        "height": 37.1875,
+        "right": 1006,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 99,
+      "clientWidth": 99
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1024,
+    "height": 846,
+    "right": 1024,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1024,
+  "headerClientWidth": 1024,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-200.png
new file mode 100644
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Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1024-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100-boundary.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100-boundary.html
new file mode 100644
index 0000000..7c70678
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100-boundary.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar" style="outline: rgb(255, 0, 127) solid 3px; outline-offset: -3px;"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea><div id="proof-boundary" style="position: fixed; top: 58px; left: 4px; padding: 2px 5px; background: rgb(255, 0, 127); color: white; font: 12px sans-serif; z-index: 2147483647; pointer-events: none;">A · existing header owner · BEFORE</div></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100-boundary.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100-boundary.png
new file mode 100644
index 0000000..ae538bd
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100-boundary.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100.html
new file mode 100644
index 0000000..f426fc4
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100.json
new file mode 100644
index 0000000..a02f8dd
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 1440,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1440,
+    "height": 54,
+    "right": 1440,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 196.265625,
+    "height": 21.6875,
+    "right": 214.265625,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1293.8125,
+        "y": 17.203125,
+        "width": 66.484375,
+        "height": 18.59375,
+        "right": 1360.296875,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1372.296875,
+        "y": 17.203125,
+        "width": 49.703125,
+        "height": 18.59375,
+        "right": 1422,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1440,
+    "height": 846,
+    "right": 1440,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1440,
+  "headerClientWidth": 1440,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100.png
new file mode 100644
index 0000000..8832f6b
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-200.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-200.html
new file mode 100644
index 0000000..eff1f86
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-200.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-200.json
new file mode 100644
index 0000000..edcd8dd
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-200.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 1440,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1440,
+    "height": 54,
+    "right": 1440,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "width": 366.515625,
+    "height": 43.390625,
+    "right": 384.515625,
+    "bottom": 48.1875
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1177.625,
+        "y": 7.90625,
+        "width": 132.96875,
+        "height": 37.1875,
+        "right": 1310.59375,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 133,
+      "clientWidth": 133
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1322.59375,
+        "y": 7.90625,
+        "width": 99.40625,
+        "height": 37.1875,
+        "right": 1422,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 99,
+      "clientWidth": 99
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1440,
+    "height": 846,
+    "right": 1440,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1440,
+  "headerClientWidth": 1440,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-200.png
new file mode 100644
index 0000000..f62d2d7
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1440-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-100.html
new file mode 100644
index 0000000..f426fc4
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-100.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-100.json
new file mode 100644
index 0000000..04378c7
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-100.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 1920,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1920,
+    "height": 54,
+    "right": 1920,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 196.265625,
+    "height": 21.6875,
+    "right": 214.265625,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1773.8125,
+        "y": 17.203125,
+        "width": 66.484375,
+        "height": 18.59375,
+        "right": 1840.296875,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1852.296875,
+        "y": 17.203125,
+        "width": 49.703125,
+        "height": 18.59375,
+        "right": 1902,
+        "bottom": 35.796875
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1920,
+    "height": 846,
+    "right": 1920,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1920,
+  "headerClientWidth": 1920,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-100.png
new file mode 100644
index 0000000..0fd47b4
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-200.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-200.html
new file mode 100644
index 0000000..eff1f86
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-200.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-200.json
new file mode 100644
index 0000000..43330d3
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-200.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 1920,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 1920,
+    "height": 54,
+    "right": 1920,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "width": 366.515625,
+    "height": 43.390625,
+    "right": 384.515625,
+    "bottom": 48.1875
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1657.625,
+        "y": 7.90625,
+        "width": 132.96875,
+        "height": 37.1875,
+        "right": 1790.59375,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 133,
+      "clientWidth": 133
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1802.59375,
+        "y": 7.90625,
+        "width": 99.40625,
+        "height": 37.1875,
+        "right": 1902,
+        "bottom": 45.09375
+      },
+      "scrollWidth": 99,
+      "clientWidth": 99
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 1920,
+    "height": 846,
+    "right": 1920,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 1920,
+  "headerClientWidth": 1920,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-200.png
new file mode 100644
index 0000000..769d9b0
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-1920-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-100.html
new file mode 100644
index 0000000..d95ee70
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-100.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 220px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-100.json
new file mode 100644
index 0000000..e2395e3
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-100.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 320,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 320,
+    "height": 54,
+    "right": 320,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 93.453125,
+    "height": 21.6875,
+    "right": 111.453125,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 173.8125,
+        "y": 4.5,
+        "width": 66.484375,
+        "height": 44,
+        "right": 240.296875,
+        "bottom": 48.5
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 252.296875,
+        "y": 4.5,
+        "width": 49.703125,
+        "height": 44,
+        "right": 302,
+        "bottom": 48.5
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 320,
+    "height": 846,
+    "right": 320,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 320,
+  "headerClientWidth": 320,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-100.png
new file mode 100644
index 0000000..e0fd13f
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-200-boundary.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-200-boundary.html
new file mode 100644
index 0000000..9f941e0
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-200-boundary.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px; outline: rgb(255, 0, 127) solid 3px; outline-offset: -3px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 220px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea><div id="proof-boundary" style="position: fixed; top: 58px; left: 4px; padding: 2px 5px; background: rgb(255, 0, 127); color: white; font: 12px sans-serif; z-index: 2147483647; pointer-events: none;">A · existing header owner · BEFORE</div></body></html>
\ No newline at end of file
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@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 220px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-200.json
new file mode 100644
index 0000000..968ff14
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-200.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 320,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 320,
+    "height": 54,
+    "right": 320,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "width": 168.90625,
+    "height": 43.390625,
+    "right": 186.90625,
+    "bottom": 48.1875
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 210.90625,
+        "y": -10.6875,
+        "width": 110.59375,
+        "height": 74.375,
+        "right": 321.5,
+        "bottom": 63.6875
+      },
+      "scrollWidth": 111,
+      "clientWidth": 111
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 333.5,
+        "y": -10.6875,
+        "width": 77.03125,
+        "height": 74.375,
+        "right": 410.53125,
+        "bottom": 63.6875
+      },
+      "scrollWidth": 77,
+      "clientWidth": 77
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 320,
+    "height": 846,
+    "right": 320,
+    "bottom": 900
+  },
+  "documentOverflow": 91,
+  "headerScrollWidth": 411,
+  "headerClientWidth": 320,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-200.png
new file mode 100644
index 0000000..cf68796
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-320-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-100.html
new file mode 100644
index 0000000..e8fe833
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-100.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-100.json
new file mode 100644
index 0000000..182dc3e
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-100.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 390,
+    "height": 54,
+    "right": 390,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 93.453125,
+    "height": 21.6875,
+    "right": 111.453125,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 243.8125,
+        "y": 4.5,
+        "width": 66.484375,
+        "height": 44,
+        "right": 310.296875,
+        "bottom": 48.5
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 322.296875,
+        "y": 4.5,
+        "width": 49.703125,
+        "height": 44,
+        "right": 372,
+        "bottom": 48.5
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 390,
+    "height": 846,
+    "right": 390,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 390,
+  "headerClientWidth": 390,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-100.png
new file mode 100644
index 0000000..35d5937
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-200-boundary.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-200-boundary.html
new file mode 100644
index 0000000..1e7ea40
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-200-boundary.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px; outline: rgb(255, 0, 127) solid 3px; outline-offset: -3px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea><div id="proof-boundary" style="position: fixed; top: 58px; left: 4px; padding: 2px 5px; background: rgb(255, 0, 127); color: white; font: 12px sans-serif; z-index: 2147483647; pointer-events: none;">A · existing header owner · BEFORE</div></body></html>
\ No newline at end of file
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@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-200.json
new file mode 100644
index 0000000..cf76b98
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-200.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 390,
+    "height": 54,
+    "right": 390,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "width": 168.90625,
+    "height": 43.390625,
+    "right": 186.90625,
+    "bottom": 48.1875
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 210.90625,
+        "y": -10.6875,
+        "width": 110.59375,
+        "height": 74.375,
+        "right": 321.5,
+        "bottom": 63.6875
+      },
+      "scrollWidth": 111,
+      "clientWidth": 111
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 333.5,
+        "y": -10.6875,
+        "width": 77.03125,
+        "height": 74.375,
+        "right": 410.53125,
+        "bottom": 63.6875
+      },
+      "scrollWidth": 77,
+      "clientWidth": 77
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 390,
+    "height": 846,
+    "right": 390,
+    "bottom": 900
+  },
+  "documentOverflow": 21,
+  "headerScrollWidth": 411,
+  "headerClientWidth": 390,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-200.png
new file mode 100644
index 0000000..582ce61
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-390-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-100.html
new file mode 100644
index 0000000..96d464e
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-100.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 656px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-100.json
new file mode 100644
index 0000000..f405041
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-100.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 768,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 768,
+    "height": 54,
+    "right": 768,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "width": 196.265625,
+    "height": 21.6875,
+    "right": 214.265625,
+    "bottom": 37.34375
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 621.8125,
+        "y": 4.5,
+        "width": 66.484375,
+        "height": 44,
+        "right": 688.296875,
+        "bottom": 48.5
+      },
+      "scrollWidth": 66,
+      "clientWidth": 66
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 700.296875,
+        "y": 4.5,
+        "width": 49.703125,
+        "height": 44,
+        "right": 750,
+        "bottom": 48.5
+      },
+      "scrollWidth": 50,
+      "clientWidth": 50
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 768,
+    "height": 846,
+    "right": 768,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 768,
+  "headerClientWidth": 768,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-100.png
new file mode 100644
index 0000000..a767b5c
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-200.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-200.html
new file mode 100644
index 0000000..fd8deb1
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-200.html
@@ -0,0 +1,270 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; align-items: center; gap: 12px;
+  height: 54px; padding: 0 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 656px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-200.json
new file mode 100644
index 0000000..55e5ea2
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-200.json
@@ -0,0 +1,76 @@
+{
+  "viewport": {
+    "width": 768,
+    "height": 900
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "width": 768,
+    "height": 54,
+    "right": 768,
+    "bottom": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "width": 366.515625,
+    "height": 43.390625,
+    "right": 384.515625,
+    "bottom": 48.1875
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 505.625,
+        "y": 4.5,
+        "width": 132.96875,
+        "height": 44,
+        "right": 638.59375,
+        "bottom": 48.5
+      },
+      "scrollWidth": 133,
+      "clientWidth": 133
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 650.59375,
+        "y": 4.5,
+        "width": 99.40625,
+        "height": 44,
+        "right": 750,
+        "bottom": 48.5
+      },
+      "scrollWidth": 99,
+      "clientWidth": 99
+    }
+  ],
+  "main": {
+    "x": 0,
+    "y": 54,
+    "width": 768,
+    "height": 846,
+    "right": 768,
+    "bottom": 900
+  },
+  "documentOverflow": 0,
+  "headerScrollWidth": 768,
+  "headerClientWidth": 768,
+  "headerCss": {
+    "height": "54px",
+    "flexWrap": "nowrap",
+    "flexShrink": "1"
+  },
+  "brandText": "NodeAgenton assistant-ui",
+  "fonts": {
+    "ready": "loaded",
+    "manrope": true,
+    "mono": false
+  },
+  "errors": [],
+  "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-200.png
new file mode 100644
index 0000000..66661e6
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/before-768-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/report.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/report.json
new file mode 100644
index 0000000..c006762
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-before-01/report.json
@@ -0,0 +1,1015 @@
+{
+  "proof": "NODEAGENT-ENLARGED-HEADER-01",
+  "phase": "before",
+  "at": "2026-09-05T10:15:17.302Z",
+  "head": "5362505886883b49c8037bf5b9fb4ff2738d47a7",
+  "sourceBefore": {
+    "src/app/styles.css": "b18a51e811b6ac0a003f7bebf988c1077500b4183ae6c54db5e9878a0b28eca8",
+    "src/features/node-agent/components/NodeAgentDemoApp.tsx": "7d683b2ce58f46ebb72bbd2bfd944bf3171a927edd2439ae64307ce41ac384b8",
+    "src/features/node-agent/components/NodeAgentThread.tsx": "867c29ffa6efe1bce591a54ebdfe1a4721f88e82f53ead5f63e69ee1f19e2c42",
+    "src/features/node-agent/runtime/nodeAgentChatAdapter.ts": "18a238b08287f415dc4474e46d007f2fe9c6d49eba16bb64fbbab222d7c7a1a9",
+    "package.json": "b8c29dca85263de4a015bfc7cb89255a73c22440b5140616fd92d6441dedf76e",
+    "package-lock.json": "9951aa3919121d6a1dbd5351ed58ae38b7befcf7a042f9a103919ede57cd23ce"
+  },
+  "checks": [
+    {
+      "name": "before-320-text-100 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-320-text-200 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-390-text-100 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-390-text-200 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-768-text-100 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-768-text-200 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-1024-text-100 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-1024-text-200 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-1440-text-100 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-1440-text-200 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-1920-text-100 no runtime exception",
+      "passed": true
+    },
+    {
+      "name": "before-1920-text-200 no runtime exception",
+      "passed": true
+    }
+  ],
+  "cells": [
+    {
+      "name": "before-320-text-100",
+      "viewport": {
+        "width": 320,
+        "height": 900
+      },
+      "header": {
+        "x": 0,
+        "y": 0,
+        "width": 320,
+        "height": 54,
+        "right": 320,
+        "bottom": 54
+      },
+      "brand": {
+        "x": 18,
+        "y": 15.65625,
+        "width": 93.453125,
+        "height": 21.6875,
+        "right": 111.453125,
+        "bottom": 37.34375
+      },
+      "links": [
+        {
+          "text": "Prototype ↗",
+          "href": "/nodeagent-v1.html",
+          "box": {
+            "x": 173.8125,
+            "y": 4.5,
+            "width": 66.484375,
+            "height": 44,
+            "right": 240.296875,
+            "bottom": 48.5
+          },
+          "scrollWidth": 66,
+          "clientWidth": 66
+        },
+        {
+          "text": "GitHub ↗",
+          "href": "https://github.com/HomenShum/NodeAgent",
+          "box": {
+            "x": 252.296875,
+            "y": 4.5,
+            "width": 49.703125,
+            "height": 44,
+            "right": 302,
+            "bottom": 48.5
+          },
+          "scrollWidth": 50,
+          "clientWidth": 50
+        }
+      ],
+      "main": {
+        "x": 0,
+        "y": 54,
+        "width": 320,
+        "height": 846,
+        "right": 320,
+        "bottom": 900
+      },
+      "documentOverflow": 0,
+      "headerScrollWidth": 320,
+      "headerClientWidth": 320,
+      "headerCss": {
+        "height": "54px",
+        "flexWrap": "nowrap",
+        "flexShrink": "1"
+      },
+      "brandText": "NodeAgenton assistant-ui",
+      "fonts": {
+        "ready": "loaded",
+        "manrope": true,
+        "mono": false
+      },
+      "errors": [],
+      "resizeMethod": "All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.",
+      "pngSha256": "8cb26ad2ec982e39bb1c5de7cedf51a60faa8b057bbc12af8bcee4ed05c9e9d7"
+    },
+    {
+      "name": "before-320-text-200",
+      "viewport": {
+        "width": 320,
+        "height": 900
+      },
+      "header": {
+        "x": 0,
+        "y": 0,
+        "width": 320,
+        "height": 54,
+        "right": 320,
+        "bottom": 54
+      },
+      "brand": {
+        "x": 18,
+        "y": 4.796875,
+        "width": 168.90625,
+        "height": 43.390625,
+        "right": 186.90625,
+        "bottom": 48.1875
+      },
+      "links": [
+        {
+          "text": "Prototype ↗",
+          "href": "/nodeagent-v1.html",
+          "box": {
+            "x": 210.90625,
+            "y": -10.6875,
+            "width": 110.59375,
+            "height": 74.375,
+            "right": 321.5,
+            "bottom": 63.6875
+          },
+          "scrollWidth": 111,
+          "clientWidth": 111
+        },
+        {
+          "text": "GitHub ↗",
+          "href": "https://github.com/HomenShum/NodeAgent",
+          "box": {
+            "x": 333.5,
+            "y": -10.6875,
+            "width": 77.03125,
+            "height": 74.375,
+            "right": 410.53125,
+            "bottom": 63.6875
+          },
+          "scrollWidth": 77,
+          "clientWidth": 77
+        }
+      ],
+      "main": {
+        "x": 0,
+        "y": 54,
+        "width": 320,
+        "height": 846,
+        "right": 320,
+        "bottom": 900
+      },
+      "documentOverflow": 91,
+      "headerScrollWidth": 411,
+      "headerClientWidth": 320,
+      "headerCss": {
+        "height": "54px",
+        "flexWrap": "nowrap",
+        "flexShrink": "1"
+      },
+      "brandText": "NodeAgenton assistant-ui",
+      "fonts": {
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+  "fullGrades": null,
+  "browser": "151.0.7922.34",
+  "sourceAfter": {
+    "src/app/styles.css": "b18a51e811b6ac0a003f7bebf988c1077500b4183ae6c54db5e9878a0b28eca8",
+    "src/features/node-agent/components/NodeAgentDemoApp.tsx": "7d683b2ce58f46ebb72bbd2bfd944bf3171a927edd2439ae64307ce41ac384b8",
+    "src/features/node-agent/components/NodeAgentThread.tsx": "867c29ffa6efe1bce591a54ebdfe1a4721f88e82f53ead5f63e69ee1f19e2c42",
+    "src/features/node-agent/runtime/nodeAgentChatAdapter.ts": "18a238b08287f415dc4474e46d007f2fe9c6d49eba16bb64fbbab222d7c7a1a9",
+    "package.json": "b8c29dca85263de4a015bfc7cb89255a73c22440b5140616fd92d6441dedf76e",
+    "package-lock.json": "9951aa3919121d6a1dbd5351ed58ae38b7befcf7a042f9a103919ede57cd23ce"
+  },
+  "sourceUnchanged": true,
+  "passed": true
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/build.command.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/build.command.json
new file mode 100644
index 0000000..55ba83a
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/build.command.json
@@ -0,0 +1,17 @@
+{
+  "name": "build",
+  "at": "2026-09-05T10:22:32.723496+00:00",
+  "argv": [
+    "cmd.exe",
+    "/d",
+    "/c",
+    "npm",
+    "run",
+    "build"
+  ],
+  "cwd": "D:\\VSCode Projects\\cafecorner_nodebench\\nodebench_ai4\\.portfolio-worktrees\\nodeagent-current-consumer-20260905",
+  "exitCode": 0,
+  "seconds": 7.218999999924563,
+  "log": "build.log",
+  "environment": "Provider/Convex/Vite inherited variables removed without output; no credential files read."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/build.log b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/build.log
new file mode 100644
index 0000000..97d4a80
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/build.log
@@ -0,0 +1,18 @@
+
+> nodeagent@0.1.0 build
+> tsc --noEmit && vite build
+
+vite v6.4.3 building for production...
+transforming...
+✓ 777 modules transformed.
+rendering chunks...
+computing gzip size...
+dist/index.html                   1.37 kB │ gzip:   0.75 kB
+dist/assets/index-DMrXNErG.css    8.84 kB │ gzip:   2.61 kB
+dist/assets/index-I1RVIRTC.js   662.30 kB │ gzip: 188.72 kB │ map: 2,794.62 kB
+
+(!) Some chunks are larger than 500 kB after minification. Consider:
+- Using dynamic import() to code-split the application
+- Use build.rollupOptions.output.manualChunks to improve chunking: https://rollupjs.org/configuration-options/#output-manualchunks
+- Adjust chunk size limit for this warning via build.chunkSizeWarningLimit.
+✓ built in 4.67s
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/commands.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/commands.json
new file mode 100644
index 0000000..1134664
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/commands.json
@@ -0,0 +1,51 @@
+[
+  {
+    "name": "source-recovery",
+    "at": "2026-09-05T10:20:16.860242+00:00",
+    "argv": [
+      "node",
+      "e2e/current-consumer-recovery-proof.mjs",
+      "D:/ProjectRecovery/NodeAgent current consumer 20260905/Response recovery Chat app 03",
+      "C:\\Users\\hshum\\.codex\\worktrees\\5dba\\nodebench-ai\\docs\\plans\\portfolio-recovery-20260904\\E6f-nodeagent-header-recovery-01",
+      "--source-only"
+    ],
+    "cwd": "D:\\VSCode Projects\\cafecorner_nodebench\\nodebench_ai4\\.portfolio-worktrees\\nodeagent-current-consumer-20260905",
+    "exitCode": 0,
+    "seconds": 134.0779999999795,
+    "log": "source-recovery.log",
+    "environment": "Provider/Convex/Vite inherited variables removed without output; no credential files read."
+  },
+  {
+    "name": "tests",
+    "at": "2026-09-05T10:22:30.935382+00:00",
+    "argv": [
+      "cmd.exe",
+      "/d",
+      "/c",
+      "npm",
+      "test"
+    ],
+    "cwd": "D:\\VSCode Projects\\cafecorner_nodebench\\nodebench_ai4\\.portfolio-worktrees\\nodeagent-current-consumer-20260905",
+    "exitCode": 0,
+    "seconds": 1.7810000000754371,
+    "log": "tests.log",
+    "environment": "Provider/Convex/Vite inherited variables removed without output; no credential files read."
+  },
+  {
+    "name": "build",
+    "at": "2026-09-05T10:22:32.723496+00:00",
+    "argv": [
+      "cmd.exe",
+      "/d",
+      "/c",
+      "npm",
+      "run",
+      "build"
+    ],
+    "cwd": "D:\\VSCode Projects\\cafecorner_nodebench\\nodebench_ai4\\.portfolio-worktrees\\nodeagent-current-consumer-20260905",
+    "exitCode": 0,
+    "seconds": 7.218999999924563,
+    "log": "build.log",
+    "environment": "Provider/Convex/Vite inherited variables removed without output; no credential files read."
+  }
+]
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/source-recovery.command.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/source-recovery.command.json
new file mode 100644
index 0000000..b7c8b56
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/source-recovery.command.json
@@ -0,0 +1,16 @@
+{
+  "name": "source-recovery",
+  "at": "2026-09-05T10:20:16.860242+00:00",
+  "argv": [
+    "node",
+    "e2e/current-consumer-recovery-proof.mjs",
+    "D:/ProjectRecovery/NodeAgent current consumer 20260905/Response recovery Chat app 03",
+    "C:\\Users\\hshum\\.codex\\worktrees\\5dba\\nodebench-ai\\docs\\plans\\portfolio-recovery-20260904\\E6f-nodeagent-header-recovery-01",
+    "--source-only"
+  ],
+  "cwd": "D:\\VSCode Projects\\cafecorner_nodebench\\nodebench_ai4\\.portfolio-worktrees\\nodeagent-current-consumer-20260905",
+  "exitCode": 0,
+  "seconds": 134.0779999999795,
+  "log": "source-recovery.log",
+  "environment": "Provider/Convex/Vite inherited variables removed without output; no credential files read."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/source-recovery.log b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/source-recovery.log
new file mode 100644
index 0000000..2a3592e
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/source-recovery.log
@@ -0,0 +1,6 @@
+Sourcemap for "D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/vendor/nodegraph-live/react.js" points to missing source files
+Sourcemap for "D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/vendor/nodegraph-live/index.js" points to missing source files
+Sourcemap for "D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/vendor/nodegraph-live/NodeGraph.js" points to missing source files
+Sourcemap for "D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/vendor/nodegraph-live/session.js" points to missing source files
+Sourcemap for "D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/vendor/nodegraph-live/graph-model.js" points to missing source files
+{"output":"C:\\Users\\hshum\\.codex\\worktrees\\5dba\\nodebench-ai\\docs\\plans\\portfolio-recovery-20260904\\E6f-nodeagent-header-recovery-01","passed":true,"checks":145,"captures":38}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/tests.command.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/tests.command.json
new file mode 100644
index 0000000..2ab85db
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/tests.command.json
@@ -0,0 +1,16 @@
+{
+  "name": "tests",
+  "at": "2026-09-05T10:22:30.935382+00:00",
+  "argv": [
+    "cmd.exe",
+    "/d",
+    "/c",
+    "npm",
+    "test"
+  ],
+  "cwd": "D:\\VSCode Projects\\cafecorner_nodebench\\nodebench_ai4\\.portfolio-worktrees\\nodeagent-current-consumer-20260905",
+  "exitCode": 0,
+  "seconds": 1.7810000000754371,
+  "log": "tests.log",
+  "environment": "Provider/Convex/Vite inherited variables removed without output; no credential files read."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/tests.log b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/tests.log
new file mode 100644
index 0000000..313f1c1
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-checks/tests.log
@@ -0,0 +1,20 @@
+
+> nodeagent@0.1.0 test
+> vitest run
+
+
+ RUN  v2.1.9 D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905
+
+ ✓ tests/omnigentAdapter.test.ts (2 tests) 4ms
+ ✓ tests/searchSynthesize.test.ts (10 tests) 6ms
+ ✓ tests/spreadsheetDelta.test.ts (13 tests) 9ms
+ ✓ tests/reasoningFrameRunner.test.ts (2 tests) 5ms
+ ✓ tests/durableRuntime.test.ts (4 tests) 7ms
+ ✓ tests/nodeAgentRuntime.test.ts (8 tests) 7ms
+ ✓ tests/sqliteDurableRuntime.test.ts (2 tests) 83ms
+
+ Test Files  7 passed (7)
+      Tests  41 passed (41)
+   Start at  03:22:31
+   Duration  839ms (transform 385ms, setup 0ms, collect 1.33s, tests 121ms, environment 1ms, prepare 956ms)
+
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/executed-probe.mjs b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/executed-probe.mjs
new file mode 100644
index 0000000..daa09b6
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/executed-probe.mjs
@@ -0,0 +1,80 @@
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import {createRequire} from 'node:module';
+import {pathToFileURL} from 'node:url';
+import {createHash} from 'node:crypto';
+import {execFileSync} from 'node:child_process';
+import assert from 'node:assert/strict';
+const [rootArg,outArg]=process.argv.slice(2); assert(rootArg&&outArg);
+const root=path.resolve(rootArg), output=path.resolve(outArg);
+await fs.mkdir(output,{recursive:false});
+const require=createRequire(path.join(root,'package.json'));
+const {chromium}=require('playwright');
+const {createServer}=await import(pathToFileURL(require.resolve('vite')).href);
+const sha=b=>createHash('sha256').update(b).digest('hex');
+const files=['src/app/styles.css','src/features/node-agent/components/NodeAgentDemoApp.tsx','src/features/node-agent/components/NodeAgentThread.tsx','src/features/node-agent/runtime/nodeAgentChatAdapter.ts','package.json','package-lock.json','.tours/03-debug-and-recovery.tour','docs/codebase/TESTING.md','e2e/header-reflow-proof.mjs'];
+const hashes=async()=>Object.fromEntries(await Promise.all(files.map(async f=>[f,sha(await fs.readFile(path.join(root,f)))])));
+const git=(...a)=>execFileSync('git',['--no-optional-locks',...a],{cwd:root});
+const snapshot=()=>({head:git('rev-parse','HEAD').toString().trim(),index:sha(git('ls-files','--stage','-z')),refs:sha(git('show-ref')),status:sha(git('status','--porcelain=v1','-z'))});
+const report={proof:'NODEAGENT-HEADER-INDEPENDENT-01',at:new Date().toISOString(),sourceBefore:await hashes(),gitBefore:snapshot(),checks:[],captures:[],cells:[],limitations:['Four source-only normal-motion Chromium cells; no full matrix, actual device or provider proof.','Computed font doubling is not native zoom.','Link destination requests are intercepted with a labelled diagnostic document; destination contents are not certified.','Knockout restores only old layout rules in browser memory and display:contents for the added grouping; product files untouched.'],error:null};
+let server,browser;
+function check(name,passed,detail){report.checks.push({name,passed:Boolean(passed),detail});assert(passed,name);}
+async function state(page){return page.evaluate(()=>{
+ const box=e=>{const r=e.getBoundingClientRect();return {x:r.x,y:r.y,right:r.right,bottom:r.bottom,width:r.width,height:r.height};};
+ const h=document.querySelector('.na-appbar');
+ return {viewport:{width:innerWidth,height:innerHeight},header:box(h),brand:box(document.querySelector('.na-brand')),main:box(document.querySelector('.na-main')),overflow:document.documentElement.scrollWidth-innerWidth,nav:{role:document.querySelector('.na-resource-links').tagName,name:document.querySelector('.na-resource-links').getAttribute('aria-label')},links:[...h.querySelectorAll('a')].map(e=>({text:e.textContent.trim(),href:e.getAttribute('href'),box:box(e),focusVisible:e.matches(':focus-visible'),hit:document.elementFromPoint(e.getBoundingClientRect().x+e.getBoundingClientRect().width/2,e.getBoundingClientRect().y+e.getBoundingClientRect().height/2)===e})),focus:document.activeElement?.textContent?.trim(),fonts:{manrope:document.fonts.check('14px Manrope'),mono:document.fonts.check('11px "JetBrains Mono"')}};
+});}
+async function capture(page,name){
+ const s=await state(page),html=await page.content();
+ await fs.writeFile(path.join(output,name+'.html'),html);
+ await page.screenshot({path:path.join(output,name+'.png')});
+ check(name+' DOM unchanged during capture',html===await page.content());
+ await fs.writeFile(path.join(output,name+'.json'),JSON.stringify(s,null,2)+'\n');
+ report.captures.push({name,state:s,pngSha256:sha(await fs.readFile(path.join(output,name+'.png')))});
+ return s;
+}
+try{
+ server=await createServer({root,envDir:false,server:{host:'127.0.0.1',port:0,strictPort:true,open:false}});await server.listen();
+ const base=`http://127.0.0.1:${server.httpServer.address().port}`;
+ browser=await chromium.launch({headless:true});report.browser=browser.version();report.node=process.version;
+ for(const [width,height] of [[390,844],[1440,960]]) for(const scale of [1,2]){
+  const context=await browser.newContext({viewport:{width,height},reducedMotion:'no-preference'}),page=await context.newPage();
+  const cell={width,height,textScale:scale*100,console:[],errors:[],failed:[],navigation:[]};
+  page.on('console',m=>{if(['error','warning'].includes(m.type()))cell.console.push({type:m.type(),text:m.text()});});page.on('pageerror',e=>cell.errors.push(String(e)));page.on('requestfailed',r=>cell.failed.push({url:r.url(),error:r.failure()}));
+  await context.route('**/*',route=>{const u=new URL(route.request().url());if(u.origin===base||['fonts.googleapis.com','fonts.gstatic.com'].includes(u.hostname))return route.continue();return route.abort();});
+  await page.goto(base,{waitUntil:'networkidle'});await page.evaluate(()=>document.fonts.ready);
+  if(scale===2)await page.evaluate(()=>{const a=[...document.querySelectorAll('body,body *')].map(e=>({e,n:parseFloat(getComputedStyle(e).fontSize)}));for(const {e,n}of a)if(Number.isFinite(n))e.style.fontSize=`${n*2}px`;});
+  const name=`source-${width}-text-${scale*100}`;
+  const s=await capture(page,name);cell.initial=s;
+  check(name+' no horizontal overflow',s.overflow===0,s.overflow);
+  check(name+' main below actual header',s.main.y>=s.header.bottom-0.5);
+  check(name+' named native resource navigation',s.nav.role==='NAV'&&s.nav.name==='Project resources');
+  check(name+' link boxes are visible and hittable',s.links.every(l=>l.box.x>=0&&l.box.right<=width&&l.box.y>=0&&l.box.bottom<=s.header.bottom&&l.hit));
+  check(name+' exact original destinations',s.links[0].href==='/nodeagent-v1.html'&&s.links[1].href==='https://github.com/HomenShum/NodeAgent');
+  check(name+' correct bounded height',scale===2&&width===390?s.header.height>54:s.header.height===54,s.header.height);
+  await page.locator('textarea').focus();
+  for(let i=1;i>=0;i--){
+   let n=0;while(n++<12){await page.keyboard.press('Shift+Tab');if(await page.locator('.na-appbar a').nth(i).evaluate(e=>e===document.activeElement))break;}
+   const focused=await capture(page,name+'-focus-'+i);
+   check(name+' native focus '+i,focused.links[i].focusVisible&&focused.links[i].hit);
+  }
+  if(width===390&&scale===2){
+   const style=await page.addStyleTag({content:'.na-appbar{flex-wrap:nowrap;flex-shrink:1;gap:12px;height:54px;min-height:0;padding:0 18px}.na-brand{flex-shrink:1}.na-resource-links{display:contents}.na-link{white-space:normal}'});
+   const ko=await capture(page,name+'-old-layout-knockout');
+   check('old layout reproduces header failure',ko.overflow>0&&ko.links.some(l=>l.box.right>width||l.box.y<0),ko);
+   cell.knockout={overflow:ko.overflow,headerHeight:ko.header.height};await style.evaluate(e=>e.remove());
+   const restored=await capture(page,name+'-restored');check('candidate owner alone restores zero overflow',restored.overflow===0&&restored.header.height===s.header.height);
+  }
+  // Verify the actual native activation and intended request without certifying destination content.
+  const urls=[base+'/nodeagent-v1.html','https://github.com/HomenShum/NodeAgent'];
+  for(let i=0;i<2;i++){
+   const probe=await context.newPage();await probe.goto(base,{waitUntil:'networkidle'});
+   await probe.route(urls[i],route=>{cell.navigation.push({input:i===0?'pointer':'keyboard',requested:route.request().url()});return route.fulfill({status:200,contentType:'text/html',body:'<!doctype html><title>Independent navigation request fixture</title><p>Destination request captured; destination content not tested.</p>'});});
+   const link=probe.locator('.na-appbar a').nth(i);if(i===0)await link.click();else{await link.focus();await probe.keyboard.press('Enter');}
+   await probe.waitForURL(urls[i]);check(name+' native destination request '+i,cell.navigation.some(v=>v.requested===urls[i]));await probe.close();
+  }
+  check(name+' no unexpected page or console errors',cell.errors.length===0&&cell.console.every(v=>v.type!=='error')&&cell.failed.length===0,{errors:cell.errors,console:cell.console,failed:cell.failed});
+  report.cells.push(cell);await context.close();
+ }
+}catch(e){report.error=String(e.stack??e);process.exitCode=1;}
+finally{await browser?.close();await server?.close();report.sourceAfter=await hashes();report.gitAfter=snapshot();report.preserved=JSON.stringify(report.sourceBefore)===JSON.stringify(report.sourceAfter)&&JSON.stringify(report.gitBefore)===JSON.stringify(report.gitAfter);report.passed=!report.error&&report.preserved;await fs.writeFile(path.join(output,'report.json'),JSON.stringify(report,null,2)+'\n');console.log(JSON.stringify({passed:report.passed,checks:report.checks.length,captures:report.captures.length,error:report.error,preserved:report.preserved}));}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/report.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/report.json
new file mode 100644
index 0000000..a775be4
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/report.json
@@ -0,0 +1,158 @@
+{
+  "proof": "NODEAGENT-HEADER-INDEPENDENT-01",
+  "at": "2026-09-05T10:30:58.394Z",
+  "sourceBefore": {
+    "src/app/styles.css": "6e6feb6d48d3d2623d5139a890b4f58149e315153aa20934e0ee8f698febfb87",
+    "src/features/node-agent/components/NodeAgentDemoApp.tsx": "5bfb4d66491582163365fd8798444dc2744df5389cbb29b519f671e5d02a0707",
+    "src/features/node-agent/components/NodeAgentThread.tsx": "867c29ffa6efe1bce591a54ebdfe1a4721f88e82f53ead5f63e69ee1f19e2c42",
+    "src/features/node-agent/runtime/nodeAgentChatAdapter.ts": "18a238b08287f415dc4474e46d007f2fe9c6d49eba16bb64fbbab222d7c7a1a9",
+    "package.json": "b8c29dca85263de4a015bfc7cb89255a73c22440b5140616fd92d6441dedf76e",
+    "package-lock.json": "9951aa3919121d6a1dbd5351ed58ae38b7befcf7a042f9a103919ede57cd23ce",
+    ".tours/03-debug-and-recovery.tour": "9aa6c7d7ecd380b5564bfaf27ea24a7a09d72b8db7ffdcb8d249f533c49e099e",
+    "docs/codebase/TESTING.md": "512d3df76468fc3229ce0f3506f97bd9fe0d0529b5827cfbef3157ac199ecfc6",
+    "e2e/header-reflow-proof.mjs": "1506b7de8f61e173c31ef12ffa9b85464beee783990b58bbadd5ab6fdb79bb1c"
+  },
+  "gitBefore": {
+    "head": "5362505886883b49c8037bf5b9fb4ff2738d47a7",
+    "index": "71c2a72d325902a8f012c9204395241f66a94eed09922f3f1a8fcfd1d30f40f8",
+    "refs": "63ea8d5aa704559ad977eba9f2882f3447b68f4c31d8b30fd8b80176555e7873",
+    "status": "59179cf1b0a8d9ce5330d6042de2250fa767cb8965374f4c7b0df6a4e783412c"
+  },
+  "checks": [
+    {
+      "name": "source-390-text-100 DOM unchanged during capture",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 no horizontal overflow",
+      "passed": true,
+      "detail": 0
+    },
+    {
+      "name": "source-390-text-100 main below actual header",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 named native resource navigation",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 link boxes are visible and hittable",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 exact original destinations",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 correct bounded height",
+      "passed": true,
+      "detail": 54
+    }
+  ],
+  "captures": [
+    {
+      "name": "source-390-text-100",
+      "state": {
+        "viewport": {
+          "width": 390,
+          "height": 844
+        },
+        "header": {
+          "x": 0,
+          "y": 0,
+          "right": 390,
+          "bottom": 54,
+          "width": 390,
+          "height": 54
+        },
+        "brand": {
+          "x": 18,
+          "y": 15.65625,
+          "right": 111.453125,
+          "bottom": 37.34375,
+          "width": 93.453125,
+          "height": 21.6875
+        },
+        "main": {
+          "x": 0,
+          "y": 54,
+          "right": 390,
+          "bottom": 844,
+          "width": 390,
+          "height": 790
+        },
+        "overflow": 0,
+        "nav": {
+          "role": "NAV",
+          "name": "Project resources"
+        },
+        "links": [
+          {
+            "text": "Prototype ↗",
+            "href": "/nodeagent-v1.html",
+            "box": {
+              "x": 243.8125,
+              "y": 4.5,
+              "right": 310.296875,
+              "bottom": 48.5,
+              "width": 66.484375,
+              "height": 44
+            },
+            "focusVisible": false,
+            "hit": true
+          },
+          {
+            "text": "GitHub ↗",
+            "href": "https://github.com/HomenShum/NodeAgent",
+            "box": {
+              "x": 322.296875,
+              "y": 4.5,
+              "right": 372,
+              "bottom": 48.5,
+              "width": 49.703125,
+              "height": 44
+            },
+            "focusVisible": false,
+            "hit": true
+          }
+        ],
+        "focus": "",
+        "fonts": {
+          "manrope": true,
+          "mono": false
+        }
+      },
+      "pngSha256": "3d209bcddf3e3d426d1747f07f45f1c0a4f3e6eff9619f520dc7895ebf472ca5"
+    }
+  ],
+  "cells": [],
+  "limitations": [
+    "Four source-only normal-motion Chromium cells; no full matrix, actual device or provider proof.",
+    "Computed font doubling is not native zoom.",
+    "Link destination requests are intercepted with a labelled diagnostic document; destination contents are not certified.",
+    "Knockout restores only old layout rules in browser memory and display:contents for the added grouping; product files untouched."
+  ],
+  "error": "locator.focus: Error: strict mode violation: locator('textarea') resolved to 2 elements:\n    1) <textarea rows=\"1\" name=\"input\" class=\"na-composer-input\" placeholder=\"Ask the room anything…\"></textarea> aka getByRole('textbox', { name: 'Ask the room anything…' })\n    2) <textarea tabindex=\"-1\" aria-hidden=\"true\"></textarea> aka locator('textarea').nth(1)\n\nCall log:\n\u001b[2m  - waiting for locator('textarea')\u001b[22m\n\n    at C:\\Users\\hshum\\.codex\\worktrees\\5dba\\nodebench-ai\\docs\\plans\\portfolio-recovery-20260904\\E6f-nodeagent-header-independent.mjs:55:34",
+  "browser": "151.0.7922.34",
+  "node": "v22.22.2",
+  "sourceAfter": {
+    "src/app/styles.css": "6e6feb6d48d3d2623d5139a890b4f58149e315153aa20934e0ee8f698febfb87",
+    "src/features/node-agent/components/NodeAgentDemoApp.tsx": "5bfb4d66491582163365fd8798444dc2744df5389cbb29b519f671e5d02a0707",
+    "src/features/node-agent/components/NodeAgentThread.tsx": "867c29ffa6efe1bce591a54ebdfe1a4721f88e82f53ead5f63e69ee1f19e2c42",
+    "src/features/node-agent/runtime/nodeAgentChatAdapter.ts": "18a238b08287f415dc4474e46d007f2fe9c6d49eba16bb64fbbab222d7c7a1a9",
+    "package.json": "b8c29dca85263de4a015bfc7cb89255a73c22440b5140616fd92d6441dedf76e",
+    "package-lock.json": "9951aa3919121d6a1dbd5351ed58ae38b7befcf7a042f9a103919ede57cd23ce",
+    ".tours/03-debug-and-recovery.tour": "9aa6c7d7ecd380b5564bfaf27ea24a7a09d72b8db7ffdcb8d249f533c49e099e",
+    "docs/codebase/TESTING.md": "512d3df76468fc3229ce0f3506f97bd9fe0d0529b5827cfbef3157ac199ecfc6",
+    "e2e/header-reflow-proof.mjs": "1506b7de8f61e173c31ef12ffa9b85464beee783990b58bbadd5ab6fdb79bb1c"
+  },
+  "gitAfter": {
+    "head": "5362505886883b49c8037bf5b9fb4ff2738d47a7",
+    "index": "71c2a72d325902a8f012c9204395241f66a94eed09922f3f1a8fcfd1d30f40f8",
+    "refs": "63ea8d5aa704559ad977eba9f2882f3447b68f4c31d8b30fd8b80176555e7873",
+    "status": "59179cf1b0a8d9ce5330d6042de2250fa767cb8965374f4c7b0df6a4e783412c"
+  },
+  "preserved": true,
+  "passed": false
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/source-390-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/source-390-text-100.html
new file mode 100644
index 0000000..9a19b25
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/source-390-text-100.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/source-390-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/source-390-text-100.json
new file mode 100644
index 0000000..bc8b9b2
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/source-390-text-100.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 390,
+    "bottom": 54,
+    "width": 390,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "right": 111.453125,
+    "bottom": 37.34375,
+    "width": 93.453125,
+    "height": 21.6875
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 390,
+    "bottom": 844,
+    "width": 390,
+    "height": 790
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 243.8125,
+        "y": 4.5,
+        "right": 310.296875,
+        "bottom": 48.5,
+        "width": 66.484375,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 322.296875,
+        "y": 4.5,
+        "right": 372,
+        "bottom": 48.5,
+        "width": 49.703125,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/source-390-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/source-390-text-100.png
new file mode 100644
index 0000000..cd79bf6
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-01/source-390-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/citations.stderr.log b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/citations.stderr.log
new file mode 100644
index 0000000..e69de29
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/citations.stdout.log b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/citations.stdout.log
new file mode 100644
index 0000000..21b00cc
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/citations.stdout.log
@@ -0,0 +1 @@
+tours validate: PASS 3 tours, 36 steps, 11 START_HERE citations — every anchor still lives on the line that cites it
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/custody-metadata-followup.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/custody-metadata-followup.json
new file mode 100644
index 0000000..7b73ddf
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/custody-metadata-followup.json
@@ -0,0 +1,19 @@
+{
+  "status": "FIRST_CUSTODY_ASSERTION_TOO_BROAD",
+  "error": "Full234 current-byte equality after recovery rejected the two later numeric citation updates; product/runtime inputs remain exact.",
+  "metadataOnlyDifferences": [
+    {
+      "path": ".tours/03-debug-and-recovery.tour",
+      "recoverySha256": "01cdce8aac5661f3b5802d8bca8749ad07ccaa1b447af7f88049bdb2f0f81c94",
+      "currentSha256": "9aa6c7d7ecd380b5564bfaf27ea24a7a09d72b8db7ffdcb8d249f533c49e099e",
+      "recoveryEqualsBase": true
+    },
+    {
+      "path": "docs/codebase/TESTING.md",
+      "recoverySha256": "b28b3964fda89568df077fe998eb78befb4b0f2399edb6f94ecada9579f5c7c0",
+      "currentSha256": "512d3df76468fc3229ce0f3506f97bd9fe0d0529b5827cfbef3157ac199ecfc6",
+      "recoveryEqualsBase": true
+    }
+  ],
+  "correction": "Bind232 unchanged recovery inputs directly and the two documentation changes via their actual diff and final citation replay. No runtime proof rerun needed."
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/executed-probe.mjs b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/executed-probe.mjs
new file mode 100644
index 0000000..dbfe55e
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/executed-probe.mjs
@@ -0,0 +1,81 @@
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import {createRequire} from 'node:module';
+import {pathToFileURL} from 'node:url';
+import {createHash} from 'node:crypto';
+import {execFileSync} from 'node:child_process';
+import assert from 'node:assert/strict';
+const [rootArg,outArg]=process.argv.slice(2); assert(rootArg&&outArg);
+const root=path.resolve(rootArg), output=path.resolve(outArg);
+await fs.mkdir(output,{recursive:false});
+const require=createRequire(path.join(root,'package.json'));
+const {chromium}=require('playwright');
+const {createServer}=await import(pathToFileURL(require.resolve('vite')).href);
+const sha=b=>createHash('sha256').update(b).digest('hex');
+const files=['src/app/styles.css','src/features/node-agent/components/NodeAgentDemoApp.tsx','src/features/node-agent/components/NodeAgentThread.tsx','src/features/node-agent/runtime/nodeAgentChatAdapter.ts','package.json','package-lock.json','.tours/03-debug-and-recovery.tour','docs/codebase/TESTING.md','e2e/header-reflow-proof.mjs'];
+const hashes=async()=>Object.fromEntries(await Promise.all(files.map(async f=>[f,sha(await fs.readFile(path.join(root,f)))])));
+const git=(...a)=>execFileSync('git',['--no-optional-locks',...a],{cwd:root});
+const snapshot=()=>({head:git('rev-parse','HEAD').toString().trim(),index:sha(git('ls-files','--stage','-z')),refs:sha(git('show-ref')),status:sha(git('status','--porcelain=v1','-z'))});
+const report={proof:'NODEAGENT-HEADER-INDEPENDENT-01',at:new Date().toISOString(),sourceBefore:await hashes(),gitBefore:snapshot(),checks:[],captures:[],cells:[],limitations:['Four source-only normal-motion Chromium cells; no full matrix, actual device or provider proof.','Computed font doubling is not native zoom.','Link destination requests are intercepted with a labelled diagnostic document; destination contents are not certified.','Knockout restores only old layout rules in browser memory and display:contents for the added grouping; product files untouched.'],error:null};
+let server,browser;
+function check(name,passed,detail){report.checks.push({name,passed:Boolean(passed),detail});assert(passed,name);}
+async function state(page){return page.evaluate(()=>{
+ const box=e=>{const r=e.getBoundingClientRect();return {x:r.x,y:r.y,right:r.right,bottom:r.bottom,width:r.width,height:r.height};};
+ const h=document.querySelector('.na-appbar');
+ return {viewport:{width:innerWidth,height:innerHeight},header:box(h),brand:box(document.querySelector('.na-brand')),main:box(document.querySelector('.na-main')),overflow:document.documentElement.scrollWidth-innerWidth,nav:{role:document.querySelector('.na-resource-links').tagName,name:document.querySelector('.na-resource-links').getAttribute('aria-label')},links:[...h.querySelectorAll('a')].map(e=>({text:e.textContent.trim(),href:e.getAttribute('href'),box:box(e),focusVisible:e.matches(':focus-visible'),hit:document.elementFromPoint(e.getBoundingClientRect().x+e.getBoundingClientRect().width/2,e.getBoundingClientRect().y+e.getBoundingClientRect().height/2)===e})),focus:document.activeElement?.textContent?.trim(),fonts:{manrope:document.fonts.check('14px Manrope'),mono:document.fonts.check('11px "JetBrains Mono"')}};
+});}
+async function capture(page,name){
+ const s=await state(page),html=await page.content();
+ await fs.writeFile(path.join(output,name+'.html'),html);
+ await page.screenshot({path:path.join(output,name+'.png')});
+ check(name+' DOM unchanged during capture',html===await page.content());
+ await fs.writeFile(path.join(output,name+'.json'),JSON.stringify(s,null,2)+'\n');
+ report.captures.push({name,state:s,pngSha256:sha(await fs.readFile(path.join(output,name+'.png')))});
+ return s;
+}
+try{
+ server=await createServer({root,envDir:false,server:{host:'127.0.0.1',port:0,strictPort:true,open:false}});await server.listen();
+ const base=`http://127.0.0.1:${server.httpServer.address().port}`;
+ browser=await chromium.launch({headless:true});report.browser=browser.version();report.node=process.version;
+ for(const [width,height] of [[390,844],[1440,960]]) for(const scale of [1,2]){
+  const context=await browser.newContext({viewport:{width,height},reducedMotion:'no-preference'}),page=await context.newPage();
+  const cell={width,height,textScale:scale*100,console:[],errors:[],failed:[],navigation:[]};
+  page.on('console',m=>{if(['error','warning'].includes(m.type()))cell.console.push({type:m.type(),text:m.text()});});page.on('pageerror',e=>cell.errors.push(String(e)));page.on('requestfailed',r=>cell.failed.push({url:r.url(),error:r.failure()}));
+  await context.route('**/*',route=>{const u=new URL(route.request().url());if(u.origin===base||['fonts.googleapis.com','fonts.gstatic.com'].includes(u.hostname))return route.continue();return route.abort();});
+  await page.goto(base,{waitUntil:'networkidle'});await page.evaluate(()=>document.fonts.ready);
+  if(scale===2)await page.evaluate(()=>{const a=[...document.querySelectorAll('body,body *')].map(e=>({e,n:parseFloat(getComputedStyle(e).fontSize)}));for(const {e,n}of a)if(Number.isFinite(n))e.style.fontSize=`${n*2}px`;});
+  const name=`source-${width}-text-${scale*100}`;
+  const s=await capture(page,name);cell.initial=s;
+  check(name+' no horizontal overflow',s.overflow===0,s.overflow);
+  check(name+' main below actual header',s.main.y>=s.header.bottom-0.5);
+  check(name+' named native resource navigation',s.nav.role==='NAV'&&s.nav.name==='Project resources');
+  check(name+' link boxes are visible and hittable',s.links.every(l=>l.box.x>=0&&l.box.right<=width&&l.box.y>=0&&l.box.bottom<=s.header.bottom&&l.hit));
+  check(name+' exact original destinations',s.links[0].href==='/nodeagent-v1.html'&&s.links[1].href==='https://github.com/HomenShum/NodeAgent');
+  check(name+' correct bounded height',scale===2&&width===390?s.header.height>54:s.header.height===54,s.header.height);
+  await page.locator('.na-composer-input').focus();
+  for(let i=1;i>=0;i--){
+   let n=0;while(n++<12){await page.keyboard.press('Shift+Tab');if(await page.locator('.na-appbar a').nth(i).evaluate(e=>e===document.activeElement))break;}
+   const focused=await capture(page,name+'-focus-'+i);
+   check(name+' native focus '+i,focused.links[i].focusVisible&&focused.links[i].hit);
+  }
+  if(width===390&&scale===2){
+   const style=await page.addStyleTag({content:'.na-appbar{flex-wrap:nowrap;flex-shrink:1;gap:12px;height:54px;min-height:0;padding:0 18px}.na-brand{flex-shrink:1}.na-resource-links{display:contents}.na-link{white-space:normal}'});
+   const ko=await capture(page,name+'-old-layout-knockout');
+   check('old layout reproduces header failure',ko.overflow>0&&ko.links.some(l=>l.box.right>width||l.box.y<0),ko);
+   cell.knockout={overflow:ko.overflow,headerHeight:ko.header.height};await style.evaluate(e=>e.remove());
+   const restored=await capture(page,name+'-restored');check('candidate owner alone restores zero overflow',restored.overflow===0&&restored.header.height===s.header.height);
+  }
+  // Verify the actual native activation and intended request without certifying destination content.
+  const urls=[base+'/nodeagent-v1.html','https://github.com/HomenShum/NodeAgent'];
+  for(let i=0;i<2;i++){
+   const probe=await context.newPage();await probe.goto(base,{waitUntil:'networkidle'});await probe.evaluate(()=>document.fonts.ready);
+   if(scale===2)await probe.evaluate(()=>{const a=[...document.querySelectorAll('body,body *')].map(e=>({e,n:parseFloat(getComputedStyle(e).fontSize)}));for(const {e,n}of a)if(Number.isFinite(n))e.style.fontSize=`${n*2}px`;});
+   await probe.route(urls[i],route=>{cell.navigation.push({input:i===0?'pointer':'keyboard',requested:route.request().url()});return route.fulfill({status:200,contentType:'text/html',body:'<!doctype html><title>Independent navigation request fixture</title><p>Destination request captured; destination content not tested.</p>'});});
+   const link=probe.locator('.na-appbar a').nth(i);if(i===0)await link.click();else{await link.focus();await probe.keyboard.press('Enter');}
+   await probe.waitForURL(urls[i]);check(name+' native destination request '+i,cell.navigation.some(v=>v.requested===urls[i]));await probe.close();
+  }
+  check(name+' no unexpected page or console errors',cell.errors.length===0&&cell.console.every(v=>v.type!=='error')&&cell.failed.length===0,{errors:cell.errors,console:cell.console,failed:cell.failed});
+  report.cells.push(cell);await context.close();
+ }
+}catch(e){report.error=String(e.stack??e);process.exitCode=1;}
+finally{await browser?.close();await server?.close();report.sourceAfter=await hashes();report.gitAfter=snapshot();report.preserved=JSON.stringify(report.sourceBefore)===JSON.stringify(report.sourceAfter)&&JSON.stringify(report.gitBefore)===JSON.stringify(report.gitAfter);report.passed=!report.error&&report.preserved;await fs.writeFile(path.join(output,'report.json'),JSON.stringify(report,null,2)+'\n');console.log(JSON.stringify({passed:report.passed,checks:report.checks.length,captures:report.captures.length,error:report.error,preserved:report.preserved}));}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/report.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/report.json
new file mode 100644
index 0000000..547c285
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/report.json
@@ -0,0 +1,1785 @@
+{
+  "proof": "NODEAGENT-HEADER-INDEPENDENT-01",
+  "at": "2026-09-05T10:31:44.735Z",
+  "sourceBefore": {
+    "src/app/styles.css": "6e6feb6d48d3d2623d5139a890b4f58149e315153aa20934e0ee8f698febfb87",
+    "src/features/node-agent/components/NodeAgentDemoApp.tsx": "5bfb4d66491582163365fd8798444dc2744df5389cbb29b519f671e5d02a0707",
+    "src/features/node-agent/components/NodeAgentThread.tsx": "867c29ffa6efe1bce591a54ebdfe1a4721f88e82f53ead5f63e69ee1f19e2c42",
+    "src/features/node-agent/runtime/nodeAgentChatAdapter.ts": "18a238b08287f415dc4474e46d007f2fe9c6d49eba16bb64fbbab222d7c7a1a9",
+    "package.json": "b8c29dca85263de4a015bfc7cb89255a73c22440b5140616fd92d6441dedf76e",
+    "package-lock.json": "9951aa3919121d6a1dbd5351ed58ae38b7befcf7a042f9a103919ede57cd23ce",
+    ".tours/03-debug-and-recovery.tour": "9aa6c7d7ecd380b5564bfaf27ea24a7a09d72b8db7ffdcb8d249f533c49e099e",
+    "docs/codebase/TESTING.md": "512d3df76468fc3229ce0f3506f97bd9fe0d0529b5827cfbef3157ac199ecfc6",
+    "e2e/header-reflow-proof.mjs": "1506b7de8f61e173c31ef12ffa9b85464beee783990b58bbadd5ab6fdb79bb1c"
+  },
+  "gitBefore": {
+    "head": "5362505886883b49c8037bf5b9fb4ff2738d47a7",
+    "index": "71c2a72d325902a8f012c9204395241f66a94eed09922f3f1a8fcfd1d30f40f8",
+    "refs": "63ea8d5aa704559ad977eba9f2882f3447b68f4c31d8b30fd8b80176555e7873",
+    "status": "59179cf1b0a8d9ce5330d6042de2250fa767cb8965374f4c7b0df6a4e783412c"
+  },
+  "checks": [
+    {
+      "name": "source-390-text-100 DOM unchanged during capture",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 no horizontal overflow",
+      "passed": true,
+      "detail": 0
+    },
+    {
+      "name": "source-390-text-100 main below actual header",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 named native resource navigation",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 link boxes are visible and hittable",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 exact original destinations",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 correct bounded height",
+      "passed": true,
+      "detail": 54
+    },
+    {
+      "name": "source-390-text-100-focus-1 DOM unchanged during capture",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 native focus 1",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100-focus-0 DOM unchanged during capture",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 native focus 0",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 native destination request 0",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 native destination request 1",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-100 no unexpected page or console errors",
+      "passed": true,
+      "detail": {
+        "errors": [],
+        "console": [],
+        "failed": []
+      }
+    },
+    {
+      "name": "source-390-text-200 DOM unchanged during capture",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-200 no horizontal overflow",
+      "passed": true,
+      "detail": 0
+    },
+    {
+      "name": "source-390-text-200 main below actual header",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-200 named native resource navigation",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-200 link boxes are visible and hittable",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-200 exact original destinations",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-200 correct bounded height",
+      "passed": true,
+      "detail": 96.390625
+    },
+    {
+      "name": "source-390-text-200-focus-1 DOM unchanged during capture",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-200 native focus 1",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-200-focus-0 DOM unchanged during capture",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-200 native focus 0",
+      "passed": true
+    },
+    {
+      "name": "source-390-text-200-old-layout-knockout DOM unchanged during capture",
+      "passed": true
+    },
+    {
+      "name": "old layout reproduces header failure",
+      "passed": true,
+      "detail": {
+        "viewport": {
+          "width": 390,
+          "height": 844
+        },
+        "header": {
+          "x": 0,
+          "y": 0,
+          "right": 390,
+          "bottom": 54,
+          "width": 390,
+          "height": 54
+        },
+        "brand": {
+          "x": 18,
+          "y": 4.796875,
+          "right": 186.90625,
+          "bottom": 48.1875,
+          "width": 168.90625,
+          "height": 43.390625
+        },
+        "main": {
+          "x": 0,
+          "y": 54,
+          "right": 390,
+          "bottom": 844,
+          "width": 390,
+          "height": 790
+        },
+        "overflow": 21,
+        "nav": {
+          "role": "NAV",
+          "name": "Project resources"
+        },
+        "links": [
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+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-0.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-0.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-0.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-0.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-0.json
new file mode 100644
index 0000000..a57aaf3
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-0.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 1440,
+    "height": 960
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 1440,
+    "bottom": 54,
+    "width": 1440,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "right": 214.265625,
+    "bottom": 37.34375,
+    "width": 196.265625,
+    "height": 21.6875
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 1440,
+    "bottom": 960,
+    "width": 1440,
+    "height": 906
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1293.8125,
+        "y": 17.203125,
+        "right": 1360.296875,
+        "bottom": 35.796875,
+        "width": 66.484375,
+        "height": 18.59375
+      },
+      "focusVisible": true,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1372.296875,
+        "y": 17.203125,
+        "right": 1422,
+        "bottom": 35.796875,
+        "width": 49.703125,
+        "height": 18.59375
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "Prototype ↗",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-0.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-0.png
new file mode 100644
index 0000000..8b4d538
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-0.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-1.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-1.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-1.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-1.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-1.json
new file mode 100644
index 0000000..d2c9ac0
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-1.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 1440,
+    "height": 960
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 1440,
+    "bottom": 54,
+    "width": 1440,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "right": 214.265625,
+    "bottom": 37.34375,
+    "width": 196.265625,
+    "height": 21.6875
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 1440,
+    "bottom": 960,
+    "width": 1440,
+    "height": 906
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1293.8125,
+        "y": 17.203125,
+        "right": 1360.296875,
+        "bottom": 35.796875,
+        "width": 66.484375,
+        "height": 18.59375
+      },
+      "focusVisible": false,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1372.296875,
+        "y": 17.203125,
+        "right": 1422,
+        "bottom": 35.796875,
+        "width": 49.703125,
+        "height": 18.59375
+      },
+      "focusVisible": true,
+      "hit": true
+    }
+  ],
+  "focus": "GitHub ↗",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-1.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-1.png
new file mode 100644
index 0000000..fec8747
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100-focus-1.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100.json
new file mode 100644
index 0000000..76a4b47
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 1440,
+    "height": 960
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 1440,
+    "bottom": 54,
+    "width": 1440,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "right": 214.265625,
+    "bottom": 37.34375,
+    "width": 196.265625,
+    "height": 21.6875
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 1440,
+    "bottom": 960,
+    "width": 1440,
+    "height": 906
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1293.8125,
+        "y": 17.203125,
+        "right": 1360.296875,
+        "bottom": 35.796875,
+        "width": 66.484375,
+        "height": 18.59375
+      },
+      "focusVisible": false,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1372.296875,
+        "y": 17.203125,
+        "right": 1422,
+        "bottom": 35.796875,
+        "width": 49.703125,
+        "height": 18.59375
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100.png
new file mode 100644
index 0000000..a69fedf
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-0.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-0.html
new file mode 100644
index 0000000..8449c8f
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-0.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-0.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-0.json
new file mode 100644
index 0000000..bb85e66
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-0.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 1440,
+    "height": 960
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 1440,
+    "bottom": 54,
+    "width": 1440,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "right": 384.515625,
+    "bottom": 48.1875,
+    "width": 366.515625,
+    "height": 43.390625
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 1440,
+    "bottom": 960,
+    "width": 1440,
+    "height": 906
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1177.625,
+        "y": 7.90625,
+        "right": 1310.59375,
+        "bottom": 45.09375,
+        "width": 132.96875,
+        "height": 37.1875
+      },
+      "focusVisible": true,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1322.59375,
+        "y": 7.90625,
+        "right": 1422,
+        "bottom": 45.09375,
+        "width": 99.40625,
+        "height": 37.1875
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "Prototype ↗",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-0.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-0.png
new file mode 100644
index 0000000..292c1ed
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-0.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-1.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-1.html
new file mode 100644
index 0000000..8449c8f
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-1.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-1.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-1.json
new file mode 100644
index 0000000..fe28b75
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-1.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 1440,
+    "height": 960
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 1440,
+    "bottom": 54,
+    "width": 1440,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "right": 384.515625,
+    "bottom": 48.1875,
+    "width": 366.515625,
+    "height": 43.390625
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 1440,
+    "bottom": 960,
+    "width": 1440,
+    "height": 906
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1177.625,
+        "y": 7.90625,
+        "right": 1310.59375,
+        "bottom": 45.09375,
+        "width": 132.96875,
+        "height": 37.1875
+      },
+      "focusVisible": false,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1322.59375,
+        "y": 7.90625,
+        "right": 1422,
+        "bottom": 45.09375,
+        "width": 99.40625,
+        "height": 37.1875
+      },
+      "focusVisible": true,
+      "hit": true
+    }
+  ],
+  "focus": "GitHub ↗",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-1.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200-focus-1.png
new file mode 100644
index 0000000..ac6904c
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200.html
new file mode 100644
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+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200.json
new file mode 100644
index 0000000..ca17151
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 1440,
+    "height": 960
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 1440,
+    "bottom": 54,
+    "width": 1440,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "right": 384.515625,
+    "bottom": 48.1875,
+    "width": 366.515625,
+    "height": 43.390625
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 1440,
+    "bottom": 960,
+    "width": 1440,
+    "height": 906
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 1177.625,
+        "y": 7.90625,
+        "right": 1310.59375,
+        "bottom": 45.09375,
+        "width": 132.96875,
+        "height": 37.1875
+      },
+      "focusVisible": false,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 1322.59375,
+        "y": 7.90625,
+        "right": 1422,
+        "bottom": 45.09375,
+        "width": 99.40625,
+        "height": 37.1875
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-1440-text-200.png
new file mode 100644
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-0.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-0.html
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+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-0.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-0.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-0.json
new file mode 100644
index 0000000..b23d0d0
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-0.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 390,
+    "bottom": 54,
+    "width": 390,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "right": 111.453125,
+    "bottom": 37.34375,
+    "width": 93.453125,
+    "height": 21.6875
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 390,
+    "bottom": 844,
+    "width": 390,
+    "height": 790
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 243.8125,
+        "y": 4.5,
+        "right": 310.296875,
+        "bottom": 48.5,
+        "width": 66.484375,
+        "height": 44
+      },
+      "focusVisible": true,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 322.296875,
+        "y": 4.5,
+        "right": 372,
+        "bottom": 48.5,
+        "width": 49.703125,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "Prototype ↗",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-0.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-0.png
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index 0000000..1fcff6b
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-1.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-1.html
new file mode 100644
index 0000000..9a19b25
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-1.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-1.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-1.json
new file mode 100644
index 0000000..7ac28ef
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-1.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 390,
+    "bottom": 54,
+    "width": 390,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "right": 111.453125,
+    "bottom": 37.34375,
+    "width": 93.453125,
+    "height": 21.6875
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 390,
+    "bottom": 844,
+    "width": 390,
+    "height": 790
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 243.8125,
+        "y": 4.5,
+        "right": 310.296875,
+        "bottom": 48.5,
+        "width": 66.484375,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 322.296875,
+        "y": 4.5,
+        "right": 372,
+        "bottom": 48.5,
+        "width": 49.703125,
+        "height": 44
+      },
+      "focusVisible": true,
+      "hit": true
+    }
+  ],
+  "focus": "GitHub ↗",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-1.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-1.png
new file mode 100644
index 0000000..51e8220
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100-focus-1.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100.html
new file mode 100644
index 0000000..9a19b25
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100.json
new file mode 100644
index 0000000..bc8b9b2
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 390,
+    "bottom": 54,
+    "width": 390,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 15.65625,
+    "right": 111.453125,
+    "bottom": 37.34375,
+    "width": 93.453125,
+    "height": 21.6875
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 390,
+    "bottom": 844,
+    "width": 390,
+    "height": 790
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 243.8125,
+        "y": 4.5,
+        "right": 310.296875,
+        "bottom": 48.5,
+        "width": 66.484375,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 322.296875,
+        "y": 4.5,
+        "right": 372,
+        "bottom": 48.5,
+        "width": 49.703125,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100.png
new file mode 100644
index 0000000..f38c468
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-100.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-0.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-0.html
new file mode 100644
index 0000000..a20910f
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-0.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-0.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-0.json
new file mode 100644
index 0000000..dcef283
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-0.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 390,
+    "bottom": 96.390625,
+    "width": 390,
+    "height": 96.390625
+  },
+  "brand": {
+    "x": 18,
+    "y": 4,
+    "right": 186.90625,
+    "bottom": 47.390625,
+    "width": 168.90625,
+    "height": 43.390625
+  },
+  "main": {
+    "x": 0,
+    "y": 96.390625,
+    "right": 390,
+    "bottom": 844,
+    "width": 390,
+    "height": 747.609375
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 18,
+        "y": 47.390625,
+        "right": 150.96875,
+        "bottom": 91.390625,
+        "width": 132.96875,
+        "height": 44
+      },
+      "focusVisible": true,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 162.96875,
+        "y": 47.390625,
+        "right": 262.375,
+        "bottom": 91.390625,
+        "width": 99.40625,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "Prototype ↗",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-0.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-0.png
new file mode 100644
index 0000000..2ccb543
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-0.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-1.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-1.html
new file mode 100644
index 0000000..a20910f
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-1.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-1.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-1.json
new file mode 100644
index 0000000..40fbf72
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-1.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 390,
+    "bottom": 96.390625,
+    "width": 390,
+    "height": 96.390625
+  },
+  "brand": {
+    "x": 18,
+    "y": 4,
+    "right": 186.90625,
+    "bottom": 47.390625,
+    "width": 168.90625,
+    "height": 43.390625
+  },
+  "main": {
+    "x": 0,
+    "y": 96.390625,
+    "right": 390,
+    "bottom": 844,
+    "width": 390,
+    "height": 747.609375
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 18,
+        "y": 47.390625,
+        "right": 150.96875,
+        "bottom": 91.390625,
+        "width": 132.96875,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 162.96875,
+        "y": 47.390625,
+        "right": 262.375,
+        "bottom": 91.390625,
+        "width": 99.40625,
+        "height": 44
+      },
+      "focusVisible": true,
+      "hit": true
+    }
+  ],
+  "focus": "GitHub ↗",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-1.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-focus-1.png
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index 0000000..0ab7281
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-old-layout-knockout.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-old-layout-knockout.html
new file mode 100644
index 0000000..55a3073
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-old-layout-knockout.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style><style type="text/css">.na-appbar{flex-wrap:nowrap;flex-shrink:1;gap:12px;height:54px;min-height:0;padding:0 18px}.na-brand{flex-shrink:1}.na-resource-links{display:contents}.na-link{white-space:normal}</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-old-layout-knockout.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-old-layout-knockout.json
new file mode 100644
index 0000000..dcd0d87
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-old-layout-knockout.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 390,
+    "bottom": 54,
+    "width": 390,
+    "height": 54
+  },
+  "brand": {
+    "x": 18,
+    "y": 4.796875,
+    "right": 186.90625,
+    "bottom": 48.1875,
+    "width": 168.90625,
+    "height": 43.390625
+  },
+  "main": {
+    "x": 0,
+    "y": 54,
+    "right": 390,
+    "bottom": 844,
+    "width": 390,
+    "height": 790
+  },
+  "overflow": 21,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 210.90625,
+        "y": -10.6875,
+        "right": 321.5,
+        "bottom": 63.6875,
+        "width": 110.59375,
+        "height": 74.375
+      },
+      "focusVisible": true,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 333.5,
+        "y": -10.6875,
+        "right": 410.53125,
+        "bottom": 63.6875,
+        "width": 77.03125,
+        "height": 74.375
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "Prototype ↗",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-restored.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-restored.html
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+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-restored.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-restored.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-restored.json
new file mode 100644
index 0000000..dcef283
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-restored.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 390,
+    "bottom": 96.390625,
+    "width": 390,
+    "height": 96.390625
+  },
+  "brand": {
+    "x": 18,
+    "y": 4,
+    "right": 186.90625,
+    "bottom": 47.390625,
+    "width": 168.90625,
+    "height": 43.390625
+  },
+  "main": {
+    "x": 0,
+    "y": 96.390625,
+    "right": 390,
+    "bottom": 844,
+    "width": 390,
+    "height": 747.609375
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 18,
+        "y": 47.390625,
+        "right": 150.96875,
+        "bottom": 91.390625,
+        "width": 132.96875,
+        "height": 44
+      },
+      "focusVisible": true,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 162.96875,
+        "y": 47.390625,
+        "right": 262.375,
+        "bottom": 91.390625,
+        "width": 99.40625,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "Prototype ↗",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-restored.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200-restored.png
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body style="font-size: 28px;">
+    <div id="root" style="font-size: 28px;"><div class="na-app" style="font-size: 28px;"><header class="na-appbar" style="font-size: 28px;"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true" style="font-size: 28px;"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer" style="font-size: 28px;"></span><nav class="na-resource-links" aria-label="Project resources" style="font-size: 28px;"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main" style="font-size: 28px;"><div class="na-thread" style="font-size: 28px;"><div class="na-viewport" style="font-size: 28px;"><div class="na-empty" style="font-size: 28px;"><span class="na-av na-av-lg" aria-hidden="true" style="font-size: 44px;">◆</span><h2 style="font-size: 44px;">Ask the room</h2><p style="font-size: 28px;">NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions" style="font-size: 28px;"><button class="na-chip" type="button" style="font-size: 26px;">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button" style="font-size: 26px;">What changed since last update? →</button></div></div><div class="na-footer" style="font-size: 28px;"><form class="na-composer" style="font-size: 28px;"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0" style="font-size: 28px;"><div class="na-rail-head" style="font-size: 24px;"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">0 entities · 0 edges</span></div><p class="na-rail-empty" style="font-size: 24px;">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx" style="font-size: 28px;"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200.json
new file mode 100644
index 0000000..06f1d0c
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200.json
@@ -0,0 +1,70 @@
+{
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "header": {
+    "x": 0,
+    "y": 0,
+    "right": 390,
+    "bottom": 96.390625,
+    "width": 390,
+    "height": 96.390625
+  },
+  "brand": {
+    "x": 18,
+    "y": 4,
+    "right": 186.90625,
+    "bottom": 47.390625,
+    "width": 168.90625,
+    "height": 43.390625
+  },
+  "main": {
+    "x": 0,
+    "y": 96.390625,
+    "right": 390,
+    "bottom": 844,
+    "width": 390,
+    "height": 747.609375
+  },
+  "overflow": 0,
+  "nav": {
+    "role": "NAV",
+    "name": "Project resources"
+  },
+  "links": [
+    {
+      "text": "Prototype ↗",
+      "href": "/nodeagent-v1.html",
+      "box": {
+        "x": 18,
+        "y": 47.390625,
+        "right": 150.96875,
+        "bottom": 91.390625,
+        "width": 132.96875,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    },
+    {
+      "text": "GitHub ↗",
+      "href": "https://github.com/HomenShum/NodeAgent",
+      "box": {
+        "x": 162.96875,
+        "y": 47.390625,
+        "right": 262.375,
+        "bottom": 91.390625,
+        "width": 99.40625,
+        "height": 44
+      },
+      "focusVisible": false,
+      "hit": true
+    }
+  ],
+  "focus": "",
+  "fonts": {
+    "manrope": true,
+    "mono": false
+  }
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200.png
new file mode 100644
index 0000000..93f45a6
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent-02/source-390-text-200.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-independent.mjs b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent.mjs
new file mode 100644
index 0000000..dbfe55e
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-independent.mjs
@@ -0,0 +1,81 @@
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import {createRequire} from 'node:module';
+import {pathToFileURL} from 'node:url';
+import {createHash} from 'node:crypto';
+import {execFileSync} from 'node:child_process';
+import assert from 'node:assert/strict';
+const [rootArg,outArg]=process.argv.slice(2); assert(rootArg&&outArg);
+const root=path.resolve(rootArg), output=path.resolve(outArg);
+await fs.mkdir(output,{recursive:false});
+const require=createRequire(path.join(root,'package.json'));
+const {chromium}=require('playwright');
+const {createServer}=await import(pathToFileURL(require.resolve('vite')).href);
+const sha=b=>createHash('sha256').update(b).digest('hex');
+const files=['src/app/styles.css','src/features/node-agent/components/NodeAgentDemoApp.tsx','src/features/node-agent/components/NodeAgentThread.tsx','src/features/node-agent/runtime/nodeAgentChatAdapter.ts','package.json','package-lock.json','.tours/03-debug-and-recovery.tour','docs/codebase/TESTING.md','e2e/header-reflow-proof.mjs'];
+const hashes=async()=>Object.fromEntries(await Promise.all(files.map(async f=>[f,sha(await fs.readFile(path.join(root,f)))])));
+const git=(...a)=>execFileSync('git',['--no-optional-locks',...a],{cwd:root});
+const snapshot=()=>({head:git('rev-parse','HEAD').toString().trim(),index:sha(git('ls-files','--stage','-z')),refs:sha(git('show-ref')),status:sha(git('status','--porcelain=v1','-z'))});
+const report={proof:'NODEAGENT-HEADER-INDEPENDENT-01',at:new Date().toISOString(),sourceBefore:await hashes(),gitBefore:snapshot(),checks:[],captures:[],cells:[],limitations:['Four source-only normal-motion Chromium cells; no full matrix, actual device or provider proof.','Computed font doubling is not native zoom.','Link destination requests are intercepted with a labelled diagnostic document; destination contents are not certified.','Knockout restores only old layout rules in browser memory and display:contents for the added grouping; product files untouched.'],error:null};
+let server,browser;
+function check(name,passed,detail){report.checks.push({name,passed:Boolean(passed),detail});assert(passed,name);}
+async function state(page){return page.evaluate(()=>{
+ const box=e=>{const r=e.getBoundingClientRect();return {x:r.x,y:r.y,right:r.right,bottom:r.bottom,width:r.width,height:r.height};};
+ const h=document.querySelector('.na-appbar');
+ return {viewport:{width:innerWidth,height:innerHeight},header:box(h),brand:box(document.querySelector('.na-brand')),main:box(document.querySelector('.na-main')),overflow:document.documentElement.scrollWidth-innerWidth,nav:{role:document.querySelector('.na-resource-links').tagName,name:document.querySelector('.na-resource-links').getAttribute('aria-label')},links:[...h.querySelectorAll('a')].map(e=>({text:e.textContent.trim(),href:e.getAttribute('href'),box:box(e),focusVisible:e.matches(':focus-visible'),hit:document.elementFromPoint(e.getBoundingClientRect().x+e.getBoundingClientRect().width/2,e.getBoundingClientRect().y+e.getBoundingClientRect().height/2)===e})),focus:document.activeElement?.textContent?.trim(),fonts:{manrope:document.fonts.check('14px Manrope'),mono:document.fonts.check('11px "JetBrains Mono"')}};
+});}
+async function capture(page,name){
+ const s=await state(page),html=await page.content();
+ await fs.writeFile(path.join(output,name+'.html'),html);
+ await page.screenshot({path:path.join(output,name+'.png')});
+ check(name+' DOM unchanged during capture',html===await page.content());
+ await fs.writeFile(path.join(output,name+'.json'),JSON.stringify(s,null,2)+'\n');
+ report.captures.push({name,state:s,pngSha256:sha(await fs.readFile(path.join(output,name+'.png')))});
+ return s;
+}
+try{
+ server=await createServer({root,envDir:false,server:{host:'127.0.0.1',port:0,strictPort:true,open:false}});await server.listen();
+ const base=`http://127.0.0.1:${server.httpServer.address().port}`;
+ browser=await chromium.launch({headless:true});report.browser=browser.version();report.node=process.version;
+ for(const [width,height] of [[390,844],[1440,960]]) for(const scale of [1,2]){
+  const context=await browser.newContext({viewport:{width,height},reducedMotion:'no-preference'}),page=await context.newPage();
+  const cell={width,height,textScale:scale*100,console:[],errors:[],failed:[],navigation:[]};
+  page.on('console',m=>{if(['error','warning'].includes(m.type()))cell.console.push({type:m.type(),text:m.text()});});page.on('pageerror',e=>cell.errors.push(String(e)));page.on('requestfailed',r=>cell.failed.push({url:r.url(),error:r.failure()}));
+  await context.route('**/*',route=>{const u=new URL(route.request().url());if(u.origin===base||['fonts.googleapis.com','fonts.gstatic.com'].includes(u.hostname))return route.continue();return route.abort();});
+  await page.goto(base,{waitUntil:'networkidle'});await page.evaluate(()=>document.fonts.ready);
+  if(scale===2)await page.evaluate(()=>{const a=[...document.querySelectorAll('body,body *')].map(e=>({e,n:parseFloat(getComputedStyle(e).fontSize)}));for(const {e,n}of a)if(Number.isFinite(n))e.style.fontSize=`${n*2}px`;});
+  const name=`source-${width}-text-${scale*100}`;
+  const s=await capture(page,name);cell.initial=s;
+  check(name+' no horizontal overflow',s.overflow===0,s.overflow);
+  check(name+' main below actual header',s.main.y>=s.header.bottom-0.5);
+  check(name+' named native resource navigation',s.nav.role==='NAV'&&s.nav.name==='Project resources');
+  check(name+' link boxes are visible and hittable',s.links.every(l=>l.box.x>=0&&l.box.right<=width&&l.box.y>=0&&l.box.bottom<=s.header.bottom&&l.hit));
+  check(name+' exact original destinations',s.links[0].href==='/nodeagent-v1.html'&&s.links[1].href==='https://github.com/HomenShum/NodeAgent');
+  check(name+' correct bounded height',scale===2&&width===390?s.header.height>54:s.header.height===54,s.header.height);
+  await page.locator('.na-composer-input').focus();
+  for(let i=1;i>=0;i--){
+   let n=0;while(n++<12){await page.keyboard.press('Shift+Tab');if(await page.locator('.na-appbar a').nth(i).evaluate(e=>e===document.activeElement))break;}
+   const focused=await capture(page,name+'-focus-'+i);
+   check(name+' native focus '+i,focused.links[i].focusVisible&&focused.links[i].hit);
+  }
+  if(width===390&&scale===2){
+   const style=await page.addStyleTag({content:'.na-appbar{flex-wrap:nowrap;flex-shrink:1;gap:12px;height:54px;min-height:0;padding:0 18px}.na-brand{flex-shrink:1}.na-resource-links{display:contents}.na-link{white-space:normal}'});
+   const ko=await capture(page,name+'-old-layout-knockout');
+   check('old layout reproduces header failure',ko.overflow>0&&ko.links.some(l=>l.box.right>width||l.box.y<0),ko);
+   cell.knockout={overflow:ko.overflow,headerHeight:ko.header.height};await style.evaluate(e=>e.remove());
+   const restored=await capture(page,name+'-restored');check('candidate owner alone restores zero overflow',restored.overflow===0&&restored.header.height===s.header.height);
+  }
+  // Verify the actual native activation and intended request without certifying destination content.
+  const urls=[base+'/nodeagent-v1.html','https://github.com/HomenShum/NodeAgent'];
+  for(let i=0;i<2;i++){
+   const probe=await context.newPage();await probe.goto(base,{waitUntil:'networkidle'});await probe.evaluate(()=>document.fonts.ready);
+   if(scale===2)await probe.evaluate(()=>{const a=[...document.querySelectorAll('body,body *')].map(e=>({e,n:parseFloat(getComputedStyle(e).fontSize)}));for(const {e,n}of a)if(Number.isFinite(n))e.style.fontSize=`${n*2}px`;});
+   await probe.route(urls[i],route=>{cell.navigation.push({input:i===0?'pointer':'keyboard',requested:route.request().url()});return route.fulfill({status:200,contentType:'text/html',body:'<!doctype html><title>Independent navigation request fixture</title><p>Destination request captured; destination content not tested.</p>'});});
+   const link=probe.locator('.na-appbar a').nth(i);if(i===0)await link.click();else{await link.focus();await probe.keyboard.press('Enter');}
+   await probe.waitForURL(urls[i]);check(name+' native destination request '+i,cell.navigation.some(v=>v.requested===urls[i]));await probe.close();
+  }
+  check(name+' no unexpected page or console errors',cell.errors.length===0&&cell.console.every(v=>v.type!=='error')&&cell.failed.length===0,{errors:cell.errors,console:cell.console,failed:cell.failed});
+  report.cells.push(cell);await context.close();
+ }
+}catch(e){report.error=String(e.stack??e);process.exitCode=1;}
+finally{await browser?.close();await server?.close();report.sourceAfter=await hashes();report.gitAfter=snapshot();report.preserved=JSON.stringify(report.sourceBefore)===JSON.stringify(report.sourceAfter)&&JSON.stringify(report.gitBefore)===JSON.stringify(report.gitAfter);report.passed=!report.error&&report.preserved;await fs.writeFile(path.join(output,'report.json'),JSON.stringify(report,null,2)+'\n');console.log(JSON.stringify({passed:report.passed,checks:report.checks.length,captures:report.captures.length,error:report.error,preserved:report.preserved}));}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-proof.mjs b/evidence/header-reflow-20260905/E6f-nodeagent-header-proof.mjs
new file mode 100644
index 0000000..60894b1
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-proof.mjs
@@ -0,0 +1,87 @@
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import assert from 'node:assert/strict';
+import {createRequire} from 'node:module';
+import {pathToFileURL} from 'node:url';
+import {createHash} from 'node:crypto';
+import {execFileSync} from 'node:child_process';
+const root=path.resolve(process.argv[2]??'');
+const output=path.resolve(process.argv[3]??'');
+const phase=process.argv[4];
+assert.ok(process.argv[2] && process.argv[3] && ['before','after'].includes(phase));
+await fs.mkdir(output,{recursive:false});
+const require=createRequire(path.join(root,'package.json'));
+const {chromium}=require('playwright');
+const {createServer}=await import(pathToFileURL(require.resolve('vite')).href);
+const sha=b=>createHash('sha256').update(b).digest('hex');
+const files=['src/app/styles.css','src/features/node-agent/components/NodeAgentDemoApp.tsx','src/features/node-agent/components/NodeAgentThread.tsx','src/features/node-agent/runtime/nodeAgentChatAdapter.ts','package.json','package-lock.json'];
+const hashes=async()=>Object.fromEntries(await Promise.all(files.map(async f=>[f,sha(await fs.readFile(path.join(root,f)))])));
+const report={proof:'NODEAGENT-ENLARGED-HEADER-01',phase,at:new Date().toISOString(),head:execFileSync('git',['rev-parse','HEAD'],{cwd:root}).toString().trim(),sourceBefore:await hashes(),checks:[],cells:[],error:null,fullGrades:null};
+function check(name,passed){report.checks.push({name,passed:Boolean(passed)});assert.ok(passed,name);}
+let server,browser;
+try{
+  server=await createServer({root,envDir:false,server:{host:'127.0.0.1',port:0,strictPort:true,open:false}});
+  await server.listen();
+  const address=server.httpServer.address();
+  const base=`http://127.0.0.1:${address.port}`;
+  browser=await chromium.launch({headless:true});
+  report.browser=browser.version();
+  for(const width of [320,390,768,1024,1440,1920])for(const scale of [1,2]){
+    const context=await browser.newContext({viewport:{width,height:900},reducedMotion:'reduce'});
+    const page=await context.newPage();
+    const errors=[];page.on('pageerror',e=>errors.push(String(e)));
+    await context.route('**/*',route=>{const u=new URL(route.request().url());return u.origin===base||['fonts.googleapis.com','fonts.gstatic.com'].includes(u.hostname)?route.continue():route.abort();});
+    await page.goto(base,{waitUntil:'networkidle'});
+    await page.locator('.na-appbar').waitFor();
+    await page.evaluate(()=>document.fonts.ready);
+    const fonts=await page.evaluate(()=>({ready:document.fonts.status,manrope:document.fonts.check('14px Manrope'),mono:document.fonts.check('11px "JetBrains Mono"')}));
+    if(scale===2)await page.evaluate(()=>{
+      const list=Array.from(document.querySelectorAll('body,body *')).map(e=>({e,size:parseFloat(getComputedStyle(e).fontSize)}));
+      for(const {e,size}of list)if(Number.isFinite(size))e.style.fontSize=`${size*2}px`;
+    });
+    await page.evaluate(()=>new Promise(r=>requestAnimationFrame(()=>requestAnimationFrame(r))));
+    const state=await page.evaluate(()=>{
+      const box=e=>{const r=e.getBoundingClientRect();return{x:r.x,y:r.y,width:r.width,height:r.height,right:r.right,bottom:r.bottom};};
+      const header=document.querySelector('.na-appbar');
+      const brand=document.querySelector('.na-brand');
+      const links=Array.from(header.querySelectorAll('a')).map(e=>({text:e.textContent.trim(),href:e.getAttribute('href'),box:box(e),scrollWidth:e.scrollWidth,clientWidth:e.clientWidth}));
+      return {viewport:{width:innerWidth,height:innerHeight},header:box(header),brand:box(brand),links,main:box(document.querySelector('.na-main')),documentOverflow:document.documentElement.scrollWidth-innerWidth,headerScrollWidth:header.scrollWidth,headerClientWidth:header.clientWidth,headerCss:{height:getComputedStyle(header).height,flexWrap:getComputedStyle(header).flexWrap,flexShrink:getComputedStyle(header).flexShrink},brandText:brand.textContent.trim()};
+    });
+    const name=`${phase}-${width}-text-${scale*100}`;
+    const html=await page.content();await fs.writeFile(path.join(output,name+'.html'),html);
+    await page.screenshot({path:path.join(output,name+'.png')});
+    const sidecar={...state,fonts,errors,resizeMethod:'All original computed element text sizes sampled once then doubled; no browser/OS zoom claim.'};
+    await fs.writeFile(path.join(output,name+'.json'),JSON.stringify(sidecar,null,2)+'\n');
+    if(phase==='before'&&((scale===2&&width<=390)||(scale===1&&width===1440))){
+      await page.evaluate(()=>{const e=document.querySelector('.na-appbar');e.style.outline='3px solid #ff007f';e.style.outlineOffset='-3px';const label=document.createElement('div');label.id='proof-boundary';label.textContent='A · existing header owner · BEFORE';Object.assign(label.style,{position:'fixed',top:`${e.getBoundingClientRect().bottom+4}px`,left:'4px',padding:'2px 5px',background:'#ff007f',color:'white',font:'12px sans-serif',zIndex:'2147483647',pointerEvents:'none'});document.body.append(label);});
+      await fs.writeFile(path.join(output,name+'-boundary.html'),await page.content());
+      await page.screenshot({path:path.join(output,name+'-boundary.png')});
+    }
+    check(name+' no runtime exception',errors.length===0);
+    if(phase==='after'){
+      check(name+' header fits viewport',state.header.x>=-0.5&&state.header.right<=width+0.5&&state.headerScrollWidth<=state.headerClientWidth+1);
+      check(name+' branding stays inside header',state.brand.x>=state.header.x&&state.brand.right<=state.header.right+0.5&&state.brand.y>=state.header.y&&state.brand.bottom<=state.header.bottom+0.5);
+      check(name+' links remain visible and legible',state.links.length===2&&state.links.every(l=>l.box.x>=0&&l.box.right<=width+0.5&&l.box.y>=0&&l.box.bottom<=state.header.bottom+0.5&&l.scrollWidth<=l.clientWidth+1));
+      check(name+' main starts below header',state.main.y>=state.header.bottom-0.5);
+      const focus=[];
+      await page.keyboard.press('Tab');
+      for(let i=0;i<12&&focus.length<2;i++){
+        const f=await page.evaluate(()=>{const e=document.activeElement;if(!e?.matches('.na-appbar a'))return null;const r=e.getBoundingClientRect();return{text:e.textContent.trim(),left:r.left,right:r.right,top:r.top,bottom:r.bottom,focusVisible:e.matches(':focus-visible')};});
+        if(f&&!focus.some(x=>x.text===f.text))focus.push(f);
+        await page.keyboard.press('Tab');
+      }
+      check(name+' both native header links reachable by keyboard',focus.length===2&&focus.every(f=>f.focusVisible&&f.left>=0&&f.right<=width+0.5&&f.top>=0&&f.bottom<=900));
+      sidecar.focus=focus;await fs.writeFile(path.join(output,name+'.json'),JSON.stringify(sidecar,null,2)+'\n');
+    }
+    report.cells.push({name,...sidecar,pngSha256:sha(await fs.readFile(path.join(output,name+'.png')))});
+    await context.close();
+  }
+}catch(e){report.error=String(e.stack??e);process.exitCode=1;}
+finally{
+  await browser?.close();await server?.close();
+  report.sourceAfter=await hashes();
+  report.sourceUnchanged=JSON.stringify(report.sourceBefore)===JSON.stringify(report.sourceAfter);
+  report.passed=!report.error&&report.sourceUnchanged;
+  await fs.writeFile(path.join(output,'report.json'),JSON.stringify(report,null,2)+'\n');
+  console.log(JSON.stringify({proof:report.proof,phase,passed:report.passed,cells:report.cells.length,checks:report.checks.length,error:report.error}));
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/report.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/report.json
new file mode 100644
index 0000000..486460c
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/report.json
@@ -0,0 +1,9164 @@
+{
+  "namedProof": "NODEAGENT-RESPONSE-RECOVERY-01",
+  "startedAt": "2026-09-05T10:20:17.379Z",
+  "sourceBefore": {
+    ".gitattributes": "7d24510d29efb0bb23dc6507849c430d2eed29e78e972b9e96b8a0da66bba2c5",
+    ".github/workflows/ci.yml": "060a77ce6de5d1af76b178522c99ca3c707535e597ed1ff91d3bd6bb32185425",
+    ".github/workflows/node-platform-conformance.yml": "d527515d835cf3be91687dcab1af14c23fb43f613dfc6e46c2ebbe801fd4dea1",
+    ".gitignore": "350b0dc83efaee7060b28176fe4823f5ad363f5925c13508f4c5374229693bfb",
+    ".tours/01-primary-user-flow.tour": "238f22bdf410dcbfdf8c183fc6f4fa437c476e0650ab5950e0e0ba79c2e829f8",
+    ".tours/02-agent-execution.tour": "a27de3c0a8d77e83bb599d7fb9e8945fe6629077136e58ec23c84a05f7c79d37",
+    ".tours/03-debug-and-recovery.tour": "01cdce8aac5661f3b5802d8bca8749ad07ccaa1b447af7f88049bdb2f0f81c94",
+    "HANDOFF.md": "a6bd040459660c0d6fa33b82aa4614cf2441f679e48d747eb76402f3b9590648",
+    "NODE-LOOPS.md": "de5c06200746f18c4a60db55021cb2ac69d481372555566cd85e008a74d30a80",
+    "README.md": "b872bea0ee4490993529903a4f871caa581c0a45104813d8c9cec0cddc156140",
+    "bin/nodeagent.mjs": "c8114aaac7bb8eeedfc6be2784ee09b4996b1a3babfc06da84d981e21cc86f4d",
+    "convex/schema.ts": "0031874d28c3ef866ed5f279f9e90eab30f8cbb07e60db5db76e08391784e26b",
+    "demo/runNodeAgentDemo.ts": "cb04228b26bddb45f8551fa5512456fa97a97b2e116dc20d19dc2462e3904952",
+    "docs/ARCHITECTURE.md": "4f65e5d952a4c067ce2c4c5d92f24e23023d6fe83210f114c30d4681b9382055",
+    "docs/CHAT_UI_ADOPTION.md": "874a5a85dad2064de574da13dd5e86279a603edb508a4ad073fcf8c12a2420e7",
+    "docs/DEMO_SCRIPT.md": "485fba652a80422320c631cf922a8971275c50d7cac8f8083c53fd0c1da2bff2",
+    "docs/DURABLE_RUNTIME.md": "761c1b709867bef39a7f56457be7b8a91295015407eeecad395a543de59d8a76",
+    "docs/FEATURE_PROOF_STORYBOARD.md": "7af5de5f23936d67738f729af5e6f080b53d62a477781aa6a12b599a11c22ea6",
+    "docs/GRAPH_INTEGRATION.md": "de2d0a9d605901e4e02a4d398d8e99912fbe82f28c1084e94ce2ac325c3686c1",
+    "docs/LOCAL_DASHBOARD_WALKTHROUGH.md": "5700b4f5cd72116eaa870294fd8504e3da9ede2d6d8248d41c83fd14db409847",
+    "docs/MIGRATION_MAP.md": "54e140fe9613de32f4a809881145bd3dcc569d33340be5768bf48a6d27261c1a",
+    "docs/OMNIGENT_INTEGRATION.md": "6cfd2c8172cb2fb395af7f24d73fd3426a9fcc69c302233f214dd4d666d08fe0",
+    "docs/PUSH_TO_GITHUB.md": "08bd4a4abdd268b5a8ef5e167925b9abeb0773ec262e7e88e6272dd10ed5adc2",
+    "docs/SIMPLIFICATION_REPORT.md": "76d606b042d3459c66c0cc31a054c164baae47d641408ff723b9e3cd8fa9bcbf",
+    "docs/START_HERE.md": "2267eb5d12a3da35d036bdd0b9298e267c00dd980d97fc59266ebfefbd6b57a5",
+    "docs/TECH_RETRO.md": "7893581c35ee86a2e4d9886eb1a7fe18191cbdd229e6f9cf401a72866d51e59f",
+    "docs/codebase/ARCHITECTURE.md": "affa237f04914fe198686fdff72f1dbf8fcaa5fc711f628a06a9e28db6f58c99",
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+        "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+        "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. 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+        "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+        "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\n↑\n\nDeterministic demo — no keys. 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+        "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+        "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. 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The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. 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+        "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+        "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+        "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. 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The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\n↑\n\nDeterministic demo — no keys. 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+    "scripts/nodeagent-convex-smoke.ts": "31340db7e4a1ae135f43f4fcd9f7941216e28a9bd927fc96daef42d6d19e5039",
+    "scripts/nodeagent-durable-smoke.ts": "dbd650b8883af90e73179ac3414b39e1d76f9afdbcb2e02ebda3013650107b21",
+    "scripts/nodeagent-frame-smoke.ts": "c01615665f8d95d4a4bbf6db90ab9eb4c51b9a58726664fda1792e2b753d2ed3",
+    "scripts/nodeagent-live-provider-smoke.ts": "023bee3044929e9e2d10042929cdeec8b96f1cfb8cf2b7d59faf371002235282",
+    "scripts/nodeagent-local-dashboard-scaffold-smoke.ts": "a59f10aa5eb13f8566faa048a1e9d4739711867eb03f9371971e1a95edcfff4f",
+    "scripts/nodeagent-sqlite-smoke.ts": "373cfb480567f54d1d180c1c571bcfd73d38cee8a70a45dc748b448f29b50bbf",
+    "scripts/omnigent-nodeagent-smoke.ts": "016588db4356fc54425058b8d53f3fd91f22a3634539e0e127f64f5fa7c28b34",
+    "scripts/omnigent-official-probe.mjs": "2889f5a2525d56ab33fe2c32169c570aa6a1637816f2b7fb4f13150d95db6924",
+    "scripts/render-walkthrough-media.mjs": "4ae3bd74fc0763d906073a14bc0a49b990d73e38c3e32232793e8f6ddc43d6a7",
+    "scripts/secret-scan.mjs": "fa2fc25a02d3be68adfbe94dd4303ebc37c20b5400ca02ef122c6e7c096a61ea",
+    "scripts/validate-tours.mjs": "b12f121765332413fd114ac349d29a3e9244872e0813c45904eec195a018ad46",
+    "src/app/main.tsx": "e78edc8cca4aa10ee2829143dd8696670106d652de1ff8f1b2db5a0b4590934d",
+    "src/app/styles.css": "6e6feb6d48d3d2623d5139a890b4f58149e315153aa20934e0ee8f698febfb87",
+    "src/features/chat/contextCollector.ts": "01364ce485d6d6221457fd8390d367c804d2f424e78f0188f2f84bcc476dea94",
+    "src/features/node-agent/components/GraphRailPanel.tsx": "48d1a17e30b1226d4cdba538b95ca2b5c933f922a29668d53fe663bb79a29e32",
+    "src/features/node-agent/components/NodeAgentDemoApp.tsx": "5bfb4d66491582163365fd8798444dc2744df5389cbb29b519f671e5d02a0707",
+    "src/features/node-agent/components/NodeAgentThread.tsx": "867c29ffa6efe1bce591a54ebdfe1a4721f88e82f53ead5f63e69ee1f19e2c42",
+    "src/features/node-agent/components/toolUIs.tsx": "f7de41d57e4b01946a36f79d4bc3040d07f8355a07107e9a9e5e580e9c31311e",
+    "src/features/node-agent/demoScenario.ts": "b884601b7f13f13959c77a4c0423d86e12342b0cef126a7413eac17de646d68d",
+    "src/features/node-agent/graph/agentGraphSession.ts": "3073cdcdb33d435ef54fdbe61658bcb9364b6cd7447e71819592a490beee1389",
+    "src/features/node-agent/runtime/durableRuntime.ts": "45ebef719388de3bcf16c42a18413b730d7fea6b1c781bf50469dc95a40a1c6c",
+    "src/features/node-agent/runtime/nodeAgentChatAdapter.ts": "18a238b08287f415dc4474e46d007f2fe9c6d49eba16bb64fbbab222d7c7a1a9",
+    "src/features/node-agent/runtime/nodeAgentRuntime.ts": "3ba6c3c6089c9e739c190b005720329df62f32eb352ad407a775fb7cbd02accf",
+    "src/features/node-agent/runtime/omnigentAdapter.ts": "d0b8c58f55ef452fec981e7d0a6e0a79c77e8e8413eb5cc49265680206dc6a4d",
+    "src/features/node-agent/runtime/reasoningFrameRunner.ts": "f20347b5128748ffa9e194b4d4c8fc4332b5f6d7abad9fba12a4dcf852ed7b12",
+    "src/features/node-agent/types/nodeAgentTypes.ts": "216a0648600fcb7e5b851fd499861a96aedbf670b9d521d6cad691b322414e69",
+    "src/features/notebook/notebookEditor.ts": "a5a04cb4ae089f7d6c085b1c55babe0b25b9812dc0ab5a8fa4bc882450c89456",
+    "src/features/search/searchAndSynthesize.ts": "59a3e3002b8881e84488a865d29a895170ede787088df2fc813dbc3cbeab7a7c",
+    "src/features/spreadsheet/applySpreadsheetDelta.ts": "448ee8f83b34a79f4b090f8c07fc258ad3297690d5f63da40ff9b8f631b767b9",
+    "src/features/spreadsheet/versionedSpreadsheetSync.ts": "3ed2315732c9ec4989e5f392a9766dfd94e345492875f04882449fc3e39cee95",
+    "tests/durableRuntime.test.ts": "f7128fc991589c30c24279f8b5f1b2e779794c04837fb6b42c5aae4b09b12873",
+    "tests/nodeAgentRuntime.test.ts": "a08d84238b338f5d50aeedc527026adcbeef8c2b5bcf594b5f517875d425d725",
+    "tests/omnigentAdapter.test.ts": "9392a5379b92be856bb3cd42e869b24d9f894d00f7b5d70685dd9417e515ef99",
+    "tests/reasoningFrameRunner.test.ts": "2eb988dbab897f21bacc1f5b18e1764dbfcf5a5af121a9ea19045be284589f54",
+    "tests/searchSynthesize.test.ts": "f39c7a7689f490e4ff10bf4ad8c281429990ded1a18f2acdb1208a08a5ad66b3",
+    "tests/spreadsheetDelta.test.ts": "7f339af70b18e8ede59e271761542a2f3a17f3f8d6abaa9107997ccbda0a3c87",
+    "tests/sqliteDurableRuntime.test.ts": "89e01223c55c94bedd20e62dab00d82e8af2c27e0f57e35ef979a25b39d8848a",
+    "tsconfig.json": "4a675f027533015c432e5de6839180b84e7cdcb9278c65908225ee46d2c69f4b",
+    "vendor/nodegraph-live/NodeGraph.d.ts": "2039d9072e11433766cebe53dcc5e901fd40a442c568ddc944e9d012702f9141",
+    "vendor/nodegraph-live/NodeGraph.d.ts.map": "802d6fe1463be0c5ad44bfd5d6ce0cf53c42667e03277fd9591f36e2803dd16e",
+    "vendor/nodegraph-live/NodeGraph.js": "48986620b279c677dd5f676ef81399328fa1488b0eac804d64694436614401df",
+    "vendor/nodegraph-live/NodeGraph.js.map": "1a517f4f66669cb35f3eb3c08f092f261d5d11ae5cf893bb5614175a86c17776",
+    "vendor/nodegraph-live/README.md": "5b4466502e3014e8befb90e0d18c2cc184c5b291ad175ed1d5bd6cd2e6886241",
+    "vendor/nodegraph-live/graph-model.d.ts": "a42987e8583f06981a9ae286955764b9c63a01e9757bf5f77917e81421ede83c",
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+    "vendor/nodegraph-live/index.d.ts": "c00e12ecf850b57ebb877c55458074f7013b5d959b292dc05b326ce4baea6c47",
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+    "vendor/nodegraph-live/index.js": "3617688e70d3583ed7295795c19597b20e7f300d0ca18004a0d639d2ee1e8969",
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+    "vendor/nodegraph-live/react.d.ts": "0ea368669aba5528bda8a408450d45bee9098093ab560a29dd23ddb5098e6edd",
+    "vendor/nodegraph-live/react.d.ts.map": "c4e587ef6c5f2dfd209a57b05890e0ad3f5d996db88dd9169e4c2fd8c36d06ab",
+    "vendor/nodegraph-live/react.js": "c548be84f505f0b5cf2f45b9531c35768370a7a32620d4b3e0151a45a39fa6ff",
+    "vendor/nodegraph-live/react.js.map": "6c9d5842235d854c2e59c8f8491a4d4a7a2049ffe3481eca2e3d500af2fbc575",
+    "vendor/nodegraph-live/session.d.ts": "50d05a702a783fa43042cd9c2195f70b2c3f45bfc21aa49df127e8b45910f06a",
+    "vendor/nodegraph-live/session.d.ts.map": "22f7a2d5b760146ee0b2f21393922bc88c9108d6344a7e4a808aca93ae32df9f",
+    "vendor/nodegraph-live/session.js": "18fdd651e1f5cb7c2bf791309de0a22010f5dd836630abedec9b9de7f54e1282",
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+    "vite.config.ts": "5cc068e630d5904a4727d5ed793cd8a875f7f17b5216249bfa45e28fdd9e1202",
+    "vitest.config.ts": "ed02124f628d1a5e7a4aefccd17c0b4cd208dc1c3f6dcd321196a0c8069ebdcc"
+  },
+  "consumerAfter": {
+    "package.json": "1967ba21a4990b73cf2702ada8ced1294a1ceb09feb51f61258c07199a7755c9",
+    "package-lock.json": "fd1d53e6249ac23ff1eeb4bc8ae9c75a0fdc4d43e699bcc2a133c6127beffba6",
+    "index.html": "58cc6f4dc254bd4d28c03ee74e69ef6d6dd84e249f77bf302e9d7acfcb3f5f50",
+    "vite.config.mjs": "891cad9de5cf84ed18dbd809b6f354871c8847514a002cd46f7aa0169928ef4a",
+    "src/main.jsx": "77078b85930791d340d62404e1274427d42cd60332b5f318ae016f9356b05d1f",
+    "src/styles.css": "217a84beff59430b4ef561c84ee2cf067e838c1e8ca91360fd007f36735f2096",
+    "src/nodeagent-chat/NodeAgentChatApp.jsx": "83ac384c19eebdb1e49d8e0e3dc3af967a9f076193081efa45aa16a91036f5b1",
+    "src/nodeagent-chat/nodeAgentLocalAdapter.js": "e0932f813c420b5f9c2c76df07a01d7dcd8888c4ad44dac28f4625f395397f14",
+    "src/nodeagent-chat/toolUIs.jsx": "99ddf781c65b86bc50d450efe03a8f0090ef82597a649a1303cd532eb95d1a24"
+  },
+  "finishedAt": "2026-09-05T10:22:30.905Z"
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-accumulated-390.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-accumulated-390.before.html
new file mode 100644
index 0000000..3629db6
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-accumulated-390.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="DUOzLh0"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="mKU6aN8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="uJ48FCN"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="DtKD79J"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="raFF679"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Mv0pALv"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="stDStc4"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="AKMzilN"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="BeZxYyd"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Q0uvl5e"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Z7LilpK"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="vvJA3DY"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="4Lst8TV"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="6o87q7Z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="X1bYARU"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="p8poeWv"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="tycPWwX"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="816hX1Y"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ljGWB6i"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="oOXiuSG"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Izpuzqm"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="bCOYMRU"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="fwdUGL9"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="L1TB5GQ"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="VPwOzPp"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="XQtzbPg"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="4SII6YJ"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 270px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto; min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-accumulated-390.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-accumulated-390.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-accumulated-390.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="DUOzLh0"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="mKU6aN8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="uJ48FCN"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="DtKD79J"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="raFF679"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Mv0pALv"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="stDStc4"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="AKMzilN"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="BeZxYyd"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Q0uvl5e"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Z7LilpK"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="vvJA3DY"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="4Lst8TV"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="6o87q7Z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="X1bYARU"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="p8poeWv"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="tycPWwX"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="816hX1Y"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ljGWB6i"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="oOXiuSG"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Izpuzqm"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="bCOYMRU"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="fwdUGL9"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="L1TB5GQ"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="VPwOzPp"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="XQtzbPg"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="4SII6YJ"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
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+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-accumulated-390.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-accumulated-390.png
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.before.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 562px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.html
new file mode 100644
index 0000000..1955a82
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 562px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.json
new file mode 100644
index 0000000..5897bc4
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 906,
+      "clientHeight": 906,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 664,
+        "height": 906,
+        "top": 54,
+        "right": 664,
+        "bottom": 960,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 103,
+      "clientHeight": 103,
+      "box": {
+        "x": 18,
+        "y": 848.953125,
+        "width": 628,
+        "height": 103.046875,
+        "top": 848.953125,
+        "right": 646,
+        "bottom": 952,
+        "left": 18
+      }
+    }
+  ],
+  "viewport": {
+    "width": 1024,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.png
new file mode 100644
index 0000000..1962adf
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1024.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.before.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.json
new file mode 100644
index 0000000..8c9b559
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 906,
+      "clientHeight": 906,
+      "box": {
+        "x": 130,
+        "y": 54,
+        "width": 820,
+        "height": 906,
+        "top": 54,
+        "right": 950,
+        "bottom": 960,
+        "left": 130
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 103,
+      "clientHeight": 103,
+      "box": {
+        "x": 148,
+        "y": 848.953125,
+        "width": 784,
+        "height": 103.046875,
+        "top": 848.953125,
+        "right": 932,
+        "bottom": 952,
+        "left": 148
+      }
+    }
+  ],
+  "viewport": {
+    "width": 1440,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.png
new file mode 100644
index 0000000..c80b67a
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1440.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.before.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.json
new file mode 100644
index 0000000..76d7f10
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 906,
+      "clientHeight": 906,
+      "box": {
+        "x": 370,
+        "y": 54,
+        "width": 820,
+        "height": 906,
+        "top": 54,
+        "right": 1190,
+        "bottom": 960,
+        "left": 370
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 103,
+      "clientHeight": 103,
+      "box": {
+        "x": 388,
+        "y": 848.953125,
+        "width": 784,
+        "height": 103.046875,
+        "top": 848.953125,
+        "right": 1172,
+        "bottom": 952,
+        "left": 388
+      }
+    }
+  ],
+  "viewport": {
+    "width": 1920,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-1920.png
new file mode 100644
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.before.html
new file mode 100644
index 0000000..1faa05a
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 220px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.html
new file mode 100644
index 0000000..1faa05a
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 220px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.json
new file mode 100644
index 0000000..677012d
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 660,
+      "clientHeight": 660,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 320,
+        "height": 660.21875,
+        "top": 54,
+        "right": 320,
+        "bottom": 714.21875,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
+        "x": 12,
+        "y": 578.125,
+        "width": 296,
+        "height": 128.09375,
+        "top": 578.125,
+        "right": 308,
+        "bottom": 706.21875,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 320,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.png
new file mode 100644
index 0000000..7cab249
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-320.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.before.html
new file mode 100644
index 0000000..9a19b25
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.html
new file mode 100644
index 0000000..9a19b25
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.json
new file mode 100644
index 0000000..e6697fb
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 660,
+      "clientHeight": 660,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 390,
+        "height": 660.21875,
+        "top": 54,
+        "right": 390,
+        "bottom": 714.21875,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
+        "x": 12,
+        "y": 578.125,
+        "width": 366,
+        "height": 128.09375,
+        "top": 578.125,
+        "right": 378,
+        "bottom": 706.21875,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.png
new file mode 100644
index 0000000..f02e77c
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-390.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.before.html
new file mode 100644
index 0000000..4c9e5e6
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 656px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.html
new file mode 100644
index 0000000..4c9e5e6
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 656px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.json
new file mode 100644
index 0000000..cc5d159
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 795,
+      "clientHeight": 795,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 768,
+        "height": 794.8125,
+        "top": 54,
+        "right": 768,
+        "bottom": 848.8125,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 111,
+      "clientHeight": 111,
+      "box": {
+        "x": 18,
+        "y": 729.765625,
+        "width": 732,
+        "height": 111.046875,
+        "top": 729.765625,
+        "right": 750,
+        "bottom": 840.8125,
+        "left": 18
+      }
+    }
+  ],
+  "viewport": {
+    "width": 768,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.png
new file mode 100644
index 0000000..8c6e979
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-empty-768.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1024.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1024.before.html
new file mode 100644
index 0000000..b43ca0f
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1024.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="INqjqG6"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ULQQPCF"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="eXqyZ4z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="aiUCBh5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="obwbo3Z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="NTLUBJ6"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 532px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1024.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1024.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1024.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="INqjqG6"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ULQQPCF"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="eXqyZ4z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="aiUCBh5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="obwbo3Z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="NTLUBJ6"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. 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+    <script type="module" src="/src/app/main.tsx"></script>
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+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1024.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1024.png
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Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1024.png differ
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new file mode 100644
index 0000000..67e5021
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1440.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
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+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
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+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
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+  --line: rgba(255, 255, 255, 0.07);
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+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
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+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="ZCEal7t"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="SWRYxyG"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Tvb4yHi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="fbkceoX"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="e2zkhiU"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Tl2c1ZB"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1440.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1440.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1440.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="ZCEal7t"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="SWRYxyG"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Tvb4yHi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="fbkceoX"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="e2zkhiU"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Tl2c1ZB"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1440.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1440.json
new file mode 100644
index 0000000..f97cfce
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+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1440.json
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+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1920.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1920.before.html
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+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1920.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="hm4iPYV"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WgsjQfM"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="MEisJad"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Sii83P7"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="uUMkLLJ"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="5602c0w"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1920.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1920.html
new file mode 100644
index 0000000..64b815a
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1920.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="hm4iPYV"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WgsjQfM"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="MEisJad"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Sii83P7"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="uUMkLLJ"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="5602c0w"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
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\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1920.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1920.json
new file mode 100644
index 0000000..9340c99
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-1920.json
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+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-320.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-320.before.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-320.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="tqp1uXi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="6wESPDf"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="232yrt8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="I6Y1h5V"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="aL0Wv4W"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="bIMJkwk"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-nodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-labels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hovers" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-mouse" width="268px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 268px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="268" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 200px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-320.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-320.html
new file mode 100644
index 0000000..b269c48
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-320.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="tqp1uXi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="6wESPDf"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="232yrt8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="I6Y1h5V"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="aL0Wv4W"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="bIMJkwk"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-nodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-labels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hovers" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-mouse" width="268px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 268px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="268" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 200px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-320.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-320.json
new file mode 100644
index 0000000..2f2c090
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-320.json
@@ -0,0 +1,80 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 3879,
+      "scrollHeight": 4281,
+      "clientHeight": 402,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 320,
+        "height": 401.765625,
+        "top": 54,
+        "right": 320,
+        "bottom": 455.765625,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-recovery",
+      "scrollTop": 0,
+      "scrollHeight": 111,
+      "clientHeight": 111,
+      "box": {
+        "x": 63,
+        "y": 177.90625,
+        "width": 230,
+        "height": 111.78125,
+        "top": 177.90625,
+        "right": 293,
+        "bottom": 289.6875,
+        "left": 63
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
+        "x": 12,
+        "y": 319.671875,
+        "width": 296,
+        "height": 128.09375,
+        "top": 319.671875,
+        "right": 308,
+        "bottom": 447.765625,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 320,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-390.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-390.before.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-390.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="DUOzLh0"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="mKU6aN8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="y5gqhc8"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 270px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-390.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-390.html
new file mode 100644
index 0000000..ff1226d
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-390.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="DUOzLh0"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="mKU6aN8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="y5gqhc8"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 270px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-390.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-390.json
new file mode 100644
index 0000000..c27b26c
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-390.json
@@ -0,0 +1,80 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 3338,
+      "scrollHeight": 3740,
+      "clientHeight": 402,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 390,
+        "height": 401.765625,
+        "top": 54,
+        "right": 390,
+        "bottom": 455.765625,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-recovery",
+      "scrollTop": 0,
+      "scrollHeight": 88,
+      "clientHeight": 88,
+      "box": {
+        "x": 63,
+        "y": 200.609375,
+        "width": 300,
+        "height": 89.390625,
+        "top": 200.609375,
+        "right": 363,
+        "bottom": 290,
+        "left": 63
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
+        "x": 12,
+        "y": 319.671875,
+        "width": 366,
+        "height": 128.09375,
+        "top": 319.671875,
+        "right": 378,
+        "bottom": 447.765625,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-768.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-768.before.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-768.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="qNExHsX"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="BIlyPl5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="PFKxWYS"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="zAOvvpj"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="7cPqPcv"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="0QwP0o1"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-nodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-labels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hovers" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-mouse" width="716px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 716px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="716" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 636px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-768.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-768.html
new file mode 100644
index 0000000..9159834
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-768.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="qNExHsX"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="BIlyPl5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="PFKxWYS"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="zAOvvpj"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="7cPqPcv"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="0QwP0o1"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. 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+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 636px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-768.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-768.json
new file mode 100644
index 0000000..0fb7cf8
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-768.json
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+        "bottom": 518.40625,
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+    {
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+        "top": 398.578125,
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+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
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+      "label": "fit",
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1024.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1024.before.html
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+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1024.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
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+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
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+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
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+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="INqjqG6"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ULQQPCF"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="eXqyZ4z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="aiUCBh5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="obwbo3Z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="6C0Kr7Q"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 532px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1024.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1024.html
new file mode 100644
index 0000000..ea3a8a2
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1024.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="INqjqG6"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ULQQPCF"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="eXqyZ4z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="aiUCBh5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="obwbo3Z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="6C0Kr7Q"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. 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+    <script type="module" src="/src/app/main.tsx"></script>
+  
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1024.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1024.json
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index 0000000..5dfe57c
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+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1024.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1024.png
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1440.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1440.before.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1440.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
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+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
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+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
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+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
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+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
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+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
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+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
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+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
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+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
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+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
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+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="ZCEal7t"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="SWRYxyG"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Tvb4yHi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="fbkceoX"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="e2zkhiU"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Z32nMo8"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1440.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1440.html
new file mode 100644
index 0000000..4ddf6e9
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1440.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
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+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="ZCEal7t"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="SWRYxyG"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Tvb4yHi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="fbkceoX"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="e2zkhiU"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Z32nMo8"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. 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+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
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+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="hm4iPYV"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WgsjQfM"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="MEisJad"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Sii83P7"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="uUMkLLJ"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="AspiOFm"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1920.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1920.html
new file mode 100644
index 0000000..a7319b5
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1920.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="hm4iPYV"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WgsjQfM"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="MEisJad"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Sii83P7"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="uUMkLLJ"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="AspiOFm"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
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\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1920.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1920.json
new file mode 100644
index 0000000..9340c99
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-1920.json
@@ -0,0 +1,80 @@
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+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-320.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-320.before.html
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-320.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="tqp1uXi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="6wESPDf"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="232yrt8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="I6Y1h5V"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="aL0Wv4W"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="IRwsb7V"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-nodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-labels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hovers" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-mouse" width="268px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 268px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="268" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 200px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-320.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-320.html
new file mode 100644
index 0000000..21daa68
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-320.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="tqp1uXi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="6wESPDf"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="232yrt8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="I6Y1h5V"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="aL0Wv4W"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="IRwsb7V"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-nodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-labels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hovers" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-mouse" width="268px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 268px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="268" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 200px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-320.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-320.json
new file mode 100644
index 0000000..4c136e6
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-320.json
@@ -0,0 +1,80 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 3879,
+      "scrollHeight": 4281,
+      "clientHeight": 402,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 320,
+        "height": 401.765625,
+        "top": 54,
+        "right": 320,
+        "bottom": 455.765625,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-recovery",
+      "scrollTop": 0,
+      "scrollHeight": 111,
+      "clientHeight": 111,
+      "box": {
+        "x": 63,
+        "y": 177.90625,
+        "width": 230,
+        "height": 111.78125,
+        "top": 177.90625,
+        "right": 293,
+        "bottom": 289.6875,
+        "left": 63
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
+        "x": 12,
+        "y": 319.671875,
+        "width": 296,
+        "height": 128.09375,
+        "top": 319.671875,
+        "right": 308,
+        "bottom": 447.765625,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 320,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "BODY",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-390.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-390.before.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-390.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="DUOzLh0"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="mKU6aN8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="LhmZ9P4"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 270px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-390.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-390.html
new file mode 100644
index 0000000..48dd20c
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-390.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="DUOzLh0"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="mKU6aN8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="LhmZ9P4"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 270px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-390.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-390.json
new file mode 100644
index 0000000..c27b26c
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-390.json
@@ -0,0 +1,80 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 3338,
+      "scrollHeight": 3740,
+      "clientHeight": 402,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 390,
+        "height": 401.765625,
+        "top": 54,
+        "right": 390,
+        "bottom": 455.765625,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-recovery",
+      "scrollTop": 0,
+      "scrollHeight": 88,
+      "clientHeight": 88,
+      "box": {
+        "x": 63,
+        "y": 200.609375,
+        "width": 300,
+        "height": 89.390625,
+        "top": 200.609375,
+        "right": 363,
+        "bottom": 290,
+        "left": 63
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
+        "x": 12,
+        "y": 319.671875,
+        "width": 366,
+        "height": 128.09375,
+        "top": 319.671875,
+        "right": 378,
+        "bottom": 447.765625,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.before.html
new file mode 100644
index 0000000..4317ca4
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="qNExHsX"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="BIlyPl5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="PFKxWYS"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="zAOvvpj"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="7cPqPcv"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WI2kgFX"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-nodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-labels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hovers" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-mouse" width="716px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 716px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="716" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 636px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.html
new file mode 100644
index 0000000..4317ca4
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="qNExHsX"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="BIlyPl5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="PFKxWYS"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="zAOvvpj"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="7cPqPcv"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WI2kgFX"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-interrupted">failed</span></div></div><div class="na-recovery"><p role="alert">This response failed. Earlier results are kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-nodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-labels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hovers" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-mouse" width="716px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 716px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="716" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 636px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.json
new file mode 100644
index 0000000..22d5f4a
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.json
@@ -0,0 +1,80 @@
+{
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+      "scrollTop": 2568,
+      "scrollHeight": 3032,
+      "clientHeight": 464,
+      "box": {
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+        "y": 54,
+        "width": 768,
+        "height": 464.40625,
+        "top": 54,
+        "right": 768,
+        "bottom": 518.40625,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-recovery",
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+      "scrollHeight": 88,
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+      "box": {
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+    {
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+      "scrollTop": 0,
+      "scrollHeight": 111,
+      "clientHeight": 111,
+      "box": {
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+        "height": 111.046875,
+        "top": 398.578125,
+        "right": 750,
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+  ],
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+    "height": 960
+  },
+  "scroll": {
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+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "BODY",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-again-768.png
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-text-200-390.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-text-200-390.before.html
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-text-200-390.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module" style="font-size: 32px;">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title style="font-size: 32px;">NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css" style="font-size: 32px;">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true" style="font-size: 26px;">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">💬</span><span class="na-tool-label" style="font-size: 26px;">Gather room context</span><span class="na-tool-status na-done" style="font-size: 20px;">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.20</span><span class="na-kind" style="font-size: 20px;">document</span><span class="na-txt" style="font-size: 24px;">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.19</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.03</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">🔎</span><span class="na-tool-label" style="font-size: 26px;">Search &amp; synthesize</span><span class="na-tool-status na-done" style="font-size: 20px;">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono" style="font-size: 18px;">RAG</span><span class="na-src-t" style="font-size: 24px;">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono" style="font-size: 22px;">0.44</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">DOC</span><span class="na-src-t" style="font-size: 24px;">[2] finance://burn — runway model</span><span class="na-g mono" style="font-size: 22px;">0.56</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">DOC</span><span class="na-src-t" style="font-size: 24px;">[3] diligence://wedge — competitive note</span><span class="na-g mono" style="font-size: 22px;">0.44</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">WEB</span><span class="na-src-t" style="font-size: 24px;">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono" style="font-size: 22px;">0.11</span></div><div class="na-answer" style="font-size: 26px;">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">▦</span><span class="na-tool-label" style="font-size: 26px;">Update model</span><span class="na-tool-status na-done" style="font-size: 20px;">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td style="font-size: 24px;">Net burn / mo ($k)</td><td class="na-delta" style="font-size: 24px;">420</td></tr><tr><td style="font-size: 24px;">Cash on hand ($k)</td><td class="" style="font-size: 24px;">7560</td></tr><tr><td style="font-size: 24px;">Runway (months)</td><td class="na-delta" style="font-size: 24px;">18</td></tr></tbody></table><div class="na-reason mono" style="font-size: 20px;">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">✎</span><span class="na-tool-label" style="font-size: 26px;">Write memo</span><span class="na-tool-status na-done" style="font-size: 20px;">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2 style="font-size: 28px;">Acme — diligence memo</h2><p style="font-size: 26px;">The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim" style="font-size: 26px;"><div class="na-claim-t mono" style="font-size: 20px;">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line" style="font-size: 24px;">⌗ room://benchmark — wedge holds vs Acme on latency</p><p style="font-size: 26px;">Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="DUOzLh0"><span class="na-av" aria-hidden="true" style="font-size: 26px;">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">💬</span><span class="na-tool-label" style="font-size: 26px;">Gather room context</span><span class="na-tool-status na-done" style="font-size: 20px;">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.20</span><span class="na-kind" style="font-size: 20px;">document</span><span class="na-txt" style="font-size: 24px;">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.19</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.03</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">🔎</span><span class="na-tool-label" style="font-size: 26px;">Search &amp; synthesize</span><span class="na-tool-status na-done" style="font-size: 20px;">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono" style="font-size: 18px;">RAG</span><span class="na-src-t" style="font-size: 24px;">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono" style="font-size: 22px;">0.44</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">DOC</span><span class="na-src-t" style="font-size: 24px;">[2] finance://burn — runway model</span><span class="na-g mono" style="font-size: 22px;">0.56</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">DOC</span><span class="na-src-t" style="font-size: 24px;">[3] diligence://wedge — competitive note</span><span class="na-g mono" style="font-size: 22px;">0.44</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">WEB</span><span class="na-src-t" style="font-size: 24px;">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono" style="font-size: 22px;">0.11</span></div><div class="na-answer" style="font-size: 26px;">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">▦</span><span class="na-tool-label" style="font-size: 26px;">Update model</span><span class="na-tool-status na-done" style="font-size: 20px;">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td style="font-size: 24px;">Net burn / mo ($k)</td><td class="na-delta" style="font-size: 24px;">420</td></tr><tr><td style="font-size: 24px;">Cash on hand ($k)</td><td class="" style="font-size: 24px;">7560</td></tr><tr><td style="font-size: 24px;">Runway (months)</td><td class="na-delta" style="font-size: 24px;">18</td></tr></tbody></table><div class="na-reason mono" style="font-size: 20px;">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">✎</span><span class="na-tool-label" style="font-size: 26px;">Write memo</span><span class="na-tool-status na-done" style="font-size: 20px;">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2 style="font-size: 28px;">Acme — diligence memo</h2><p style="font-size: 26px;">The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim" style="font-size: 26px;"><div class="na-claim-t mono" style="font-size: 20px;">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line" style="font-size: 24px;">⌗ room://benchmark — wedge holds vs Acme on latency</p><p style="font-size: 26px;">Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="mKU6aN8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="LhmZ9P4"><span class="na-av" aria-hidden="true" style="font-size: 26px;">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">💬</span><span class="na-tool-label" style="font-size: 26px;">Gather room context</span><span class="na-tool-status na-done" style="font-size: 20px;">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.20</span><span class="na-kind" style="font-size: 20px;">document</span><span class="na-txt" style="font-size: 24px;">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.19</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.03</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">🔎</span><span class="na-tool-label" style="font-size: 26px;">Search &amp; synthesize</span><span class="na-tool-status na-interrupted" style="font-size: 20px;">failed</span></div></div><div class="na-recovery"><p role="alert" style="font-size: 28px;">This response failed. Earlier results are kept.</p><button type="button" style="font-size: 26.6666px;">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 28px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 24px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 22px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked="" style="font-size: 26.6666px;"><span style="font-size: 24px;">evidence</span><span style="color: rgb(154, 164, 173); font-size: 24px;">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked="" style="font-size: 26.6666px;"><span style="font-size: 24px;">traversal</span><span style="color: rgb(154, 164, 173); font-size: 24px;">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173); font-size: 24px;">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 32px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 270px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-text-200-390.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-text-200-390.html
new file mode 100644
index 0000000..4ba805c
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-error-text-200-390.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module" style="font-size: 32px;">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title style="font-size: 32px;">NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css" style="font-size: 32px;">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand" style="font-size: 28px;"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono" style="font-size: 22px;">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html" style="font-size: 24px;">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent" style="font-size: 24px;">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true" style="font-size: 26px;">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">💬</span><span class="na-tool-label" style="font-size: 26px;">Gather room context</span><span class="na-tool-status na-done" style="font-size: 20px;">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.20</span><span class="na-kind" style="font-size: 20px;">document</span><span class="na-txt" style="font-size: 24px;">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.19</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.03</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">🔎</span><span class="na-tool-label" style="font-size: 26px;">Search &amp; synthesize</span><span class="na-tool-status na-done" style="font-size: 20px;">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono" style="font-size: 18px;">RAG</span><span class="na-src-t" style="font-size: 24px;">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono" style="font-size: 22px;">0.44</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">DOC</span><span class="na-src-t" style="font-size: 24px;">[2] finance://burn — runway model</span><span class="na-g mono" style="font-size: 22px;">0.56</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">DOC</span><span class="na-src-t" style="font-size: 24px;">[3] diligence://wedge — competitive note</span><span class="na-g mono" style="font-size: 22px;">0.44</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">WEB</span><span class="na-src-t" style="font-size: 24px;">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono" style="font-size: 22px;">0.11</span></div><div class="na-answer" style="font-size: 26px;">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">▦</span><span class="na-tool-label" style="font-size: 26px;">Update model</span><span class="na-tool-status na-done" style="font-size: 20px;">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td style="font-size: 24px;">Net burn / mo ($k)</td><td class="na-delta" style="font-size: 24px;">420</td></tr><tr><td style="font-size: 24px;">Cash on hand ($k)</td><td class="" style="font-size: 24px;">7560</td></tr><tr><td style="font-size: 24px;">Runway (months)</td><td class="na-delta" style="font-size: 24px;">18</td></tr></tbody></table><div class="na-reason mono" style="font-size: 20px;">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">✎</span><span class="na-tool-label" style="font-size: 26px;">Write memo</span><span class="na-tool-status na-done" style="font-size: 20px;">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2 style="font-size: 28px;">Acme — diligence memo</h2><p style="font-size: 26px;">The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim" style="font-size: 26px;"><div class="na-claim-t mono" style="font-size: 20px;">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line" style="font-size: 24px;">⌗ room://benchmark — wedge holds vs Acme on latency</p><p style="font-size: 26px;">Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="DUOzLh0"><span class="na-av" aria-hidden="true" style="font-size: 26px;">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">💬</span><span class="na-tool-label" style="font-size: 26px;">Gather room context</span><span class="na-tool-status na-done" style="font-size: 20px;">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.20</span><span class="na-kind" style="font-size: 20px;">document</span><span class="na-txt" style="font-size: 24px;">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.19</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.03</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">🔎</span><span class="na-tool-label" style="font-size: 26px;">Search &amp; synthesize</span><span class="na-tool-status na-done" style="font-size: 20px;">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono" style="font-size: 18px;">RAG</span><span class="na-src-t" style="font-size: 24px;">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono" style="font-size: 22px;">0.44</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">DOC</span><span class="na-src-t" style="font-size: 24px;">[2] finance://burn — runway model</span><span class="na-g mono" style="font-size: 22px;">0.56</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">DOC</span><span class="na-src-t" style="font-size: 24px;">[3] diligence://wedge — competitive note</span><span class="na-g mono" style="font-size: 22px;">0.44</span></div><div class="na-src"><span class="na-badge mono" style="font-size: 18px;">WEB</span><span class="na-src-t" style="font-size: 24px;">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono" style="font-size: 22px;">0.11</span></div><div class="na-answer" style="font-size: 26px;">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">▦</span><span class="na-tool-label" style="font-size: 26px;">Update model</span><span class="na-tool-status na-done" style="font-size: 20px;">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td style="font-size: 24px;">Net burn / mo ($k)</td><td class="na-delta" style="font-size: 24px;">420</td></tr><tr><td style="font-size: 24px;">Cash on hand ($k)</td><td class="" style="font-size: 24px;">7560</td></tr><tr><td style="font-size: 24px;">Runway (months)</td><td class="na-delta" style="font-size: 24px;">18</td></tr></tbody></table><div class="na-reason mono" style="font-size: 20px;">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">✎</span><span class="na-tool-label" style="font-size: 26px;">Write memo</span><span class="na-tool-status na-done" style="font-size: 20px;">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2 style="font-size: 28px;">Acme — diligence memo</h2><p style="font-size: 26px;">The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim" style="font-size: 26px;"><div class="na-claim-t mono" style="font-size: 20px;">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line" style="font-size: 24px;">⌗ room://benchmark — wedge holds vs Acme on latency</p><p style="font-size: 26px;">Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="mKU6aN8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="LhmZ9P4"><span class="na-av" aria-hidden="true" style="font-size: 26px;">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete" style="font-size: 28px;">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">💬</span><span class="na-tool-label" style="font-size: 26px;">Gather room context</span><span class="na-tool-status na-done" style="font-size: 20px;">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.20</span><span class="na-kind" style="font-size: 20px;">document</span><span class="na-txt" style="font-size: 24px;">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.19</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono" style="font-size: 22px;">0.03</span><span class="na-kind" style="font-size: 20px;">message</span><span class="na-txt" style="font-size: 24px;">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true" style="font-size: 24px;">🔎</span><span class="na-tool-label" style="font-size: 26px;">Search &amp; synthesize</span><span class="na-tool-status na-interrupted" style="font-size: 20px;">failed</span></div></div><div class="na-recovery"><p role="alert" style="font-size: 28px;">This response failed. Earlier results are kept.</p><button type="button" style="font-size: 26.6666px;">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important; font-size: 32px;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="" style="font-size: 32px;">↑</button></form><p class="na-disclaimer" style="font-size: 22px;">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span style="font-size: 24px;">Session graph</span><span class="na-rail-meta mono" style="font-size: 22px;">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 28px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 24px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 22px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked="" style="font-size: 26.6666px;"><span style="font-size: 24px;">evidence</span><span style="color: rgb(154, 164, 173); font-size: 24px;">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked="" style="font-size: 26.6666px;"><span style="font-size: 24px;">traversal</span><span style="color: rgb(154, 164, 173); font-size: 24px;">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173); font-size: 24px;">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
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+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nfailed\n\nThis response failed. Earlier results are kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "BUTTON",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.before.html
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+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="INqjqG6"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ULQQPCF"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="eXqyZ4z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="aiUCBh5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="obwbo3Z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="t2vzfjT"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 532px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.html
new file mode 100644
index 0000000..78186b0
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="INqjqG6"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ULQQPCF"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="eXqyZ4z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="aiUCBh5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="obwbo3Z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="t2vzfjT"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.json
new file mode 100644
index 0000000..0044db0
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.json
@@ -0,0 +1,60 @@
+{
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+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1024.png
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1440.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1440.before.html
new file mode 100644
index 0000000..d9a3848
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+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1440.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
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+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
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+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
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+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
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+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
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+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
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+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
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+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
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+
+/* thread */
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+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
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+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
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+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
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+/* messages */
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+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="ZCEal7t"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="SWRYxyG"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Tvb4yHi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="fbkceoX"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="e2zkhiU"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ZY55DUh"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1440.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1440.html
new file mode 100644
index 0000000..d9a3848
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1440.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="ZCEal7t"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="SWRYxyG"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Tvb4yHi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="fbkceoX"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="e2zkhiU"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ZY55DUh"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
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+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+  },
+  "buttons": [
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.before.html
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="hm4iPYV"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WgsjQfM"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="MEisJad"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Sii83P7"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="uUMkLLJ"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="p6EVQ03"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.html
new file mode 100644
index 0000000..3aa0287
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="hm4iPYV"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WgsjQfM"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="MEisJad"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="Sii83P7"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="uUMkLLJ"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="p6EVQ03"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.json
new file mode 100644
index 0000000..2eabf98
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.json
@@ -0,0 +1,60 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 2771,
+      "scrollHeight": 3677,
+      "clientHeight": 906,
+      "box": {
+        "x": 370,
+        "y": 54,
+        "width": 820,
+        "height": 906,
+        "top": 54,
+        "right": 1190,
+        "bottom": 960,
+        "left": 370
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 103,
+      "clientHeight": 103,
+      "box": {
+        "x": 388,
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+    "width": 1920,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.png
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index 0000000..bdd31f2
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-1920.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-320.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-320.before.html
new file mode 100644
index 0000000..33c32cb
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-320.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="tqp1uXi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="6wESPDf"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="232yrt8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="I6Y1h5V"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="aL0Wv4W"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="R3XrYMd"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-nodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-labels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hovers" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-mouse" width="268px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 268px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="268" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 200px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-320.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-320.html
new file mode 100644
index 0000000..33c32cb
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-320.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="tqp1uXi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="6wESPDf"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="232yrt8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="I6Y1h5V"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="aL0Wv4W"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="R3XrYMd"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-nodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-labels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hovers" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-mouse" width="268px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 268px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="268" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
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+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="DUOzLh0"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="mKU6aN8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="uJ48FCN"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 270px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-390.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-390.html
new file mode 100644
index 0000000..4825bec
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-390.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="DUOzLh0"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="mKU6aN8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="uJ48FCN"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 270px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-390.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-390.json
new file mode 100644
index 0000000..e7c3748
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-390.json
@@ -0,0 +1,60 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 4273,
+      "scrollHeight": 4675,
+      "clientHeight": 402,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 390,
+        "height": 401.765625,
+        "top": 54,
+        "right": 390,
+        "bottom": 455.765625,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
+        "x": 12,
+        "y": 319.671875,
+        "width": 366,
+        "height": 128.09375,
+        "top": 319.671875,
+        "right": 378,
+        "bottom": 447.765625,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-390.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-390.png
new file mode 100644
index 0000000..34f09f5
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-390.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-768.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-768.before.html
new file mode 100644
index 0000000..4ab48d8
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-768.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="qNExHsX"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="BIlyPl5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="PFKxWYS"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="zAOvvpj"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="7cPqPcv"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="4VlJlbw"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-nodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-labels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hovers" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-mouse" width="716px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 716px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="716" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 636px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-768.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-768.html
new file mode 100644
index 0000000..4ab48d8
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-768.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="qNExHsX"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="BIlyPl5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="PFKxWYS"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="zAOvvpj"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="7cPqPcv"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="4VlJlbw"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-nodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-labels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hovers" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-mouse" width="716px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 716px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="716" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
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index 0000000..36b3cb6
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-768.json
@@ -0,0 +1,60 @@
+{
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+      "scrollHeight": 3747,
+      "clientHeight": 464,
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+        "height": 464.40625,
+        "top": 54,
+        "right": 768,
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+      "class": "na-footer",
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+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+    {
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+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-768.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-recovered-768.png
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new file mode 100644
index 0000000..1955a82
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1024.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
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+  --line: rgba(255, 255, 255, 0.07);
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+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
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+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
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+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 562px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1024.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1024.html
new file mode 100644
index 0000000..1955a82
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1024.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 562px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1024.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1024.json
new file mode 100644
index 0000000..5897bc4
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1024.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 906,
+      "clientHeight": 906,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 664,
+        "height": 906,
+        "top": 54,
+        "right": 664,
+        "bottom": 960,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 103,
+      "clientHeight": 103,
+      "box": {
+        "x": 18,
+        "y": 848.953125,
+        "width": 628,
+        "height": 103.046875,
+        "top": 848.953125,
+        "right": 646,
+        "bottom": 952,
+        "left": 18
+      }
+    }
+  ],
+  "viewport": {
+    "width": 1024,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1024.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1024.png
new file mode 100644
index 0000000..10a717c
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1024.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.before.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.json
new file mode 100644
index 0000000..8c9b559
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 906,
+      "clientHeight": 906,
+      "box": {
+        "x": 130,
+        "y": 54,
+        "width": 820,
+        "height": 906,
+        "top": 54,
+        "right": 950,
+        "bottom": 960,
+        "left": 130
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 103,
+      "clientHeight": 103,
+      "box": {
+        "x": 148,
+        "y": 848.953125,
+        "width": 784,
+        "height": 103.046875,
+        "top": 848.953125,
+        "right": 932,
+        "bottom": 952,
+        "left": 148
+      }
+    }
+  ],
+  "viewport": {
+    "width": 1440,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.png
new file mode 100644
index 0000000..960be06
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1440.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.before.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.html
new file mode 100644
index 0000000..3aac0aa
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 718px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.json
new file mode 100644
index 0000000..76d7f10
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 906,
+      "clientHeight": 906,
+      "box": {
+        "x": 370,
+        "y": 54,
+        "width": 820,
+        "height": 906,
+        "top": 54,
+        "right": 1190,
+        "bottom": 960,
+        "left": 370
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 103,
+      "clientHeight": 103,
+      "box": {
+        "x": 388,
+        "y": 848.953125,
+        "width": 784,
+        "height": 103.046875,
+        "top": 848.953125,
+        "right": 1172,
+        "bottom": 952,
+        "left": 388
+      }
+    }
+  ],
+  "viewport": {
+    "width": 1920,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.png
new file mode 100644
index 0000000..3447693
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-1920.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.before.html
new file mode 100644
index 0000000..1faa05a
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 220px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.html
new file mode 100644
index 0000000..1faa05a
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 220px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.json
new file mode 100644
index 0000000..677012d
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 660,
+      "clientHeight": 660,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 320,
+        "height": 660.21875,
+        "top": 54,
+        "right": 320,
+        "bottom": 714.21875,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
+        "x": 12,
+        "y": 578.125,
+        "width": 296,
+        "height": 128.09375,
+        "top": 578.125,
+        "right": 308,
+        "bottom": 706.21875,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 320,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-320.png
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index 0000000..6be7b6a
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.before.html
new file mode 100644
index 0000000..9a19b25
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.html
new file mode 100644
index 0000000..9a19b25
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 290px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.json
new file mode 100644
index 0000000..e6697fb
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 660,
+      "clientHeight": 660,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 390,
+        "height": 660.21875,
+        "top": 54,
+        "right": 390,
+        "bottom": 714.21875,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
+        "x": 12,
+        "y": 578.125,
+        "width": 366,
+        "height": 128.09375,
+        "top": 578.125,
+        "right": 378,
+        "bottom": 706.21875,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.png
new file mode 100644
index 0000000..e9886d0
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-390.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.before.html
new file mode 100644
index 0000000..4c9e5e6
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 656px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.html
new file mode 100644
index 0000000..4c9e5e6
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-empty"><span class="na-av na-av-lg" aria-hidden="true">◆</span><h2>Ask the room</h2><p>NodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.</p><div class="na-suggestions"><button class="na-chip" type="button">Does our wedge hold + survive 18 months? →</button><button class="na-chip" type="button">What changed since last update? →</button></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="0" data-edges="0"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">0 entities · 0 edges</span></div><p class="na-rail-empty">Ask the room a question — each loop step streams the entities it actually touched into this graph.</p></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 656px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.json
new file mode 100644
index 0000000..cc5d159
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.json
@@ -0,0 +1,64 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 0,
+      "scrollHeight": 795,
+      "clientHeight": 795,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 768,
+        "height": 794.8125,
+        "top": 54,
+        "right": 768,
+        "bottom": 848.8125,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 111,
+      "clientHeight": 111,
+      "box": {
+        "x": 18,
+        "y": 729.765625,
+        "width": 732,
+        "height": 111.046875,
+        "top": 729.765625,
+        "right": 750,
+        "bottom": 840.8125,
+        "left": 18
+      }
+    }
+  ],
+  "viewport": {
+    "width": 768,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n◆\nAsk the room\n\nNodeAgent gathers the relevant context, finds the right document for the right answer, updates the model as a versioned delta, and writes the cited memo — and you watch each step render inline.\n\nDoes our wedge hold + survive 18 months? →\nWhat changed since last update? →\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n0 entities · 0 edges\n\nAsk the room a question — each loop step streams the entities it actually touched into this graph.",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Does our wedge hold + survive 18 months? →",
+      "disabled": false
+    },
+    {
+      "label": "What changed since last update? →",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.png
new file mode 100644
index 0000000..df28e16
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-reloaded-768.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.before.html
new file mode 100644
index 0000000..c3a5f46
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="INqjqG6"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ULQQPCF"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="eXqyZ4z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="JjLsJtc"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 532px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.html
new file mode 100644
index 0000000..c3a5f46
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="INqjqG6"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="ULQQPCF"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="eXqyZ4z"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="JjLsJtc"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 532px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.json
new file mode 100644
index 0000000..1070440
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.json
@@ -0,0 +1,80 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 867,
+      "scrollHeight": 1773,
+      "clientHeight": 906,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 664,
+        "height": 906,
+        "top": 54,
+        "right": 664,
+        "bottom": 960,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-recovery",
+      "scrollTop": 0,
+      "scrollHeight": 88,
+      "clientHeight": 88,
+      "box": {
+        "x": 69,
+        "y": 729.859375,
+        "width": 522.625,
+        "height": 89.390625,
+        "top": 729.859375,
+        "right": 591.625,
+        "bottom": 819.25,
+        "left": 69
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 103,
+      "clientHeight": 103,
+      "box": {
+        "x": 18,
+        "y": 848.953125,
+        "width": 628,
+        "height": 103.046875,
+        "top": 848.953125,
+        "right": 646,
+        "bottom": 952,
+        "left": 18
+      }
+    }
+  ],
+  "viewport": {
+    "width": 1024,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\nstopped\n\nStopped this response. Completed work is kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1024.png
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.before.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="ZCEal7t"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="SWRYxyG"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Tvb4yHi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="lvK2hAk"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.html
new file mode 100644
index 0000000..7b429d7
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="ZCEal7t"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="SWRYxyG"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="Tvb4yHi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="lvK2hAk"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.json
new file mode 100644
index 0000000..10b3470
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.json
@@ -0,0 +1,80 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 738,
+      "scrollHeight": 1644,
+      "clientHeight": 906,
+      "box": {
+        "x": 130,
+        "y": 54,
+        "width": 820,
+        "height": 906,
+        "top": 54,
+        "right": 950,
+        "bottom": 960,
+        "left": 130
+      }
+    },
+    {
+      "class": "na-recovery",
+      "scrollTop": 0,
+      "scrollHeight": 88,
+      "clientHeight": 88,
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+        "right": 858.90625,
+        "bottom": 818.6875,
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+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 103,
+      "clientHeight": 103,
+      "box": {
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+        "y": 848.6875,
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+        "height": 103.046875,
+        "top": 848.6875,
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+        "bottom": 951.734375,
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+      }
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+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\nstopped\n\nStopped this response. Completed work is kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1440.png
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1920.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1920.before.html
new file mode 100644
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1920.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="hm4iPYV"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WgsjQfM"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="MEisJad"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="xLfiFo6"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1920.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1920.html
new file mode 100644
index 0000000..4ff69c0
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1920.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="hm4iPYV"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WgsjQfM"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="MEisJad"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="xLfiFo6"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-nodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-labels" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hovers" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="307px" height="438px" style="position: absolute; width: 307px; height: 438px;"></canvas><canvas class="sigma-mouse" width="307px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 307px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="307" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 688px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
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new file mode 100644
index 0000000..ba36d01
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-1920.json
@@ -0,0 +1,80 @@
+{
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+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\nstopped\n\nStopped this response. Completed work is kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
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+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-320.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-320.before.html
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--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-320.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
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+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
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+     clear of the 4.5:1 WCAG AA floor for body text.
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+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
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+  --ink-faint: #9a958d;
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+  --r-sm: 9px;
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+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
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+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
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+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
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+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
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+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
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+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
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+}
+
+/* empty state */
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+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
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+/* messages */
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+
+/* composer */
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+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="tqp1uXi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="6wESPDf"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="232yrt8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WtojuLu"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-nodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-labels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hovers" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-mouse" width="268px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 268px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="268" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 200px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-320.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-320.html
new file mode 100644
index 0000000..94e3622
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-320.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="tqp1uXi"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="6wESPDf"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="232yrt8"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="WtojuLu"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-nodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-labels" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hovers" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="268px" height="438px" style="position: absolute; width: 268px; height: 438px;"></canvas><canvas class="sigma-mouse" width="268px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 268px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="268" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 200px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-320.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-320.json
new file mode 100644
index 0000000..b20b2dc
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-320.json
@@ -0,0 +1,80 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 1965,
+      "scrollHeight": 2367,
+      "clientHeight": 402,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 320,
+        "height": 401.765625,
+        "top": 54,
+        "right": 320,
+        "bottom": 455.765625,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-recovery",
+      "scrollTop": 0,
+      "scrollHeight": 111,
+      "clientHeight": 111,
+      "box": {
+        "x": 63,
+        "y": 178.53125,
+        "width": 230,
+        "height": 111.78125,
+        "top": 178.53125,
+        "right": 293,
+        "bottom": 290.3125,
+        "left": 63
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
+        "x": 12,
+        "y": 319.671875,
+        "width": 296,
+        "height": 128.09375,
+        "top": 319.671875,
+        "right": 308,
+        "bottom": 447.765625,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 320,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\nstopped\n\nStopped this response. Completed work is kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.before.html
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+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="SFGVGCp"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 270px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.html
new file mode 100644
index 0000000..284b62a
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="RiSGg82"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="f3xTP8G"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="K1g2zZC"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="SFGVGCp"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-nodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-labels" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hovers" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="338px" height="438px" style="position: absolute; width: 338px; height: 438px;"></canvas><canvas class="sigma-mouse" width="338px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 338px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="338" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 270px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.json
new file mode 100644
index 0000000..f1f8621
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.json
@@ -0,0 +1,80 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 1675,
+      "scrollHeight": 2077,
+      "clientHeight": 402,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 390,
+        "height": 401.765625,
+        "top": 54,
+        "right": 390,
+        "bottom": 455.765625,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-recovery",
+      "scrollTop": 0,
+      "scrollHeight": 111,
+      "clientHeight": 111,
+      "box": {
+        "x": 63,
+        "y": 178.59375,
+        "width": 300,
+        "height": 111.78125,
+        "top": 178.59375,
+        "right": 363,
+        "bottom": 290.375,
+        "left": 63
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 128,
+      "clientHeight": 128,
+      "box": {
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+        "y": 319.671875,
+        "width": 366,
+        "height": 128.09375,
+        "top": 319.671875,
+        "right": 378,
+        "bottom": 447.765625,
+        "left": 12
+      }
+    }
+  ],
+  "viewport": {
+    "width": 390,
+    "height": 844
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\nstopped\n\nStopped this response. Completed work is kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-390.png
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index 0000000..a3c2b99
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diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.before.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.before.html
new file mode 100644
index 0000000..95544a3
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.before.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="qNExHsX"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="BIlyPl5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="PFKxWYS"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="rQmExrY"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-nodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-labels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hovers" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-mouse" width="716px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 716px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="716" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 636px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.html b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.html
new file mode 100644
index 0000000..95544a3
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.html
@@ -0,0 +1,271 @@
+<!DOCTYPE html><html lang="en" data-theme="dark"><head>
+    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
+injectIntoGlobalHook(window);
+window.$RefreshReg$ = () => {};
+window.$RefreshSig$ = () => (type) => type;</script>
+
+    <script type="module" src="/@vite/client"></script>
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
+    <!-- WIG Design — "Browser UI matches your background": --bg, so the mobile
+         browser chrome does not sit as a white band above a dark app. -->
+    <meta name="theme-color" content="#151413">
+    <title>NodeAgent — React demo</title>
+    <meta name="description" content="The NodeAgent loop in React: live context gathering, grounded search &amp; synthesis, versioned spreadsheet modeling, notebook editing.">
+    <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='8' fill='%23151413'/%3E%3Ccircle cx='16' cy='16' r='6' fill='%23d97757'/%3E%3C/svg%3E">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="">
+    <link href="https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&amp;family=JetBrains+Mono:wght@400;500;600&amp;display=swap" rel="stylesheet">
+  <style type="text/css" data-vite-dev-id="D:/VSCode Projects/cafecorner_nodebench/nodebench_ai4/.portfolio-worktrees/nodeagent-current-consumer-20260905/src/app/styles.css">/* NodeAgent on assistant-ui — design DNA shared with nodeagent-v1.html.
+   bg #151413 · terracotta #d97757 · Manrope + JetBrains Mono.
+   We theme assistant-ui's headless primitives with our own CSS (no Tailwind). */
+:root {
+  --bg: #151413;
+  --paper: #1c1b1a;
+  --panel: #232221;
+  --surface: #2a2928;
+  --ink: #e8e4df;
+  /* The two secondary ink tokens are set by CONTRAST, not by taste. Both are
+     read against the darkest surface they ever sit on (--surface #2a2928), so
+     no call site has to re-check: --ink-muted 5.59:1, --ink-faint 4.88:1, both
+     clear of the 4.5:1 WCAG AA floor for body text.
+     Was --ink-muted #8a857e (3.97:1 on --surface) and --ink-faint #5a5650
+     (1.99:1 on --surface, 2.36:1 on --paper). axe-core 4.13.0 reported the
+     second as a SERIOUS violation on .na-rail-empty at first paint and on
+     eight more nodes once the loop had run (.na-kind, .na-badge, .na-reason) —
+     see promotion/evidence/axe-initial-prefix.json and
+     journey-prefix-keyboard-375-observations.json. Fixed at the token because
+     seven rules read --ink-faint and five read --ink-muted; patching the one
+     selector axe named would have left the other twelve failing. */
+  --ink-muted: #a5a098;
+  --ink-faint: #9a958d;
+  --accent: #d97757;
+  --accent-dim: rgba(217, 119, 87, 0.15);
+  --accent-ghost: rgba(217, 119, 87, 0.1);
+  --green: #7bd089;
+  --blue: #5b9bf5;
+  --purple: #a78bfa;
+  --line: rgba(255, 255, 255, 0.07);
+  --line-faint: rgba(255, 255, 255, 0.04);
+  --glass: rgba(255, 255, 255, 0.02);
+  --r: 14px;
+  --r-sm: 9px;
+  --r-pill: 999px;
+}
+* { box-sizing: border-box; }
+/* WIG Design — "Set the appropriate color-scheme". Without this the browser
+   still paints scrollbars, <select> popups and form controls light on a dark
+   page. `data-theme="dark"` in index.html is an app attribute; the browser
+   only reads color-scheme. */
+html { color-scheme: dark; }
+html, body, #root { height: 100%; }
+/* WIG Interactions — "Prevent double-tap zoom on controls". */
+a, button, input, textarea, select, label { touch-action: manipulation; }
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--ink);
+  font-family: "Manrope", system-ui, -apple-system, sans-serif;
+  font-size: 14px;
+  line-height: 1.55;
+  -webkit-font-smoothing: antialiased;
+  background-image: radial-gradient(900px 480px at 50% -10%, rgba(217, 119, 87, 0.08), transparent 60%);
+}
+.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
+a { color: var(--accent); text-decoration: none; }
+button { font-family: inherit; cursor: pointer; }
+:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
+
+/* shell */
+.na-app { display: flex; flex-direction: column; height: 100%; }
+.na-appbar {
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
+  border-bottom: 1px solid var(--line);
+  background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+  backdrop-filter: blur(12px);
+}
+/* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+@keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+.na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+.na-spacer { flex: 1; }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+.na-link:hover { color: var(--accent); }
+
+.na-main { flex: 1; min-height: 0; display: flex; }
+
+/* thread */
+.na-thread { flex: 1; min-height: 0; display: flex; flex-direction: column; width: 100%; }
+.na-viewport {
+  flex: 1; min-height: 0; overflow-y: auto;
+  display: flex; flex-direction: column; gap: 18px;
+  padding: 24px 18px 8px;
+  width: 100%; max-width: 820px; margin: 0 auto;
+}
+
+/* empty state */
+.na-empty { margin: auto 0; text-align: center; max-width: 56ch; align-self: center; padding: 32px 0; }
+.na-av { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 26px; background: var(--accent-dim); color: var(--accent); font-size: 13px; }
+.na-av-lg { width: 46px; height: 46px; font-size: 22px; margin: 0 auto 14px; }
+.na-empty h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 8px; }
+.na-empty p { color: var(--ink-muted); margin: 0 auto 18px; }
+.na-suggestions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
+.na-chip {
+  border: 1px solid var(--line); background: var(--glass); color: var(--ink-muted);
+  border-radius: var(--r-pill); padding: 9px 14px; font-size: 13px; font-weight: 600;
+  transition: border-color 120ms, color 120ms;
+}
+.na-chip:hover { border-color: var(--accent); color: var(--ink); }
+
+/* messages */
+.na-msg { display: flex; gap: 10px; }
+.na-msg-user { justify-content: flex-end; }
+.na-msg-assistant { justify-content: flex-start; }
+.na-bubble { max-width: 88%; border-radius: 16px; padding: 11px 14px; font-size: 14px; line-height: 1.6; }
+.na-bubble-user { background: var(--accent); color: #1a1009; border-bottom-right-radius: 5px; font-weight: 500; }
+.na-bubble-assistant { background: var(--paper); border: 1px solid var(--line); border-bottom-left-radius: 5px; min-width: 0; flex: 1; }
+.na-msg-assistant .na-av { margin-top: 2px; }
+
+/* composer */
+.na-footer { position: sticky; bottom: 0; width: 100%; max-width: 820px; margin: 0 auto; padding: 8px 0 16px; background: linear-gradient(180deg, transparent, var(--bg) 28%); }
+.na-composer { display: flex; align-items: flex-end; gap: 8px; border: 1px solid var(--line); background: var(--paper); border-radius: 18px; padding: 8px 8px 8px 14px; }
+.na-composer:focus-within { border-color: var(--accent); }
+/* 16px, not 14px: iOS Safari auto-zooms the page when a field smaller than 16px
+   takes focus, so a 14px composer means every mobile user's first tap jumps the
+   layout. WIG Interactions — "Mobile input size". Measured at 375w before this:
+   14px (promotion/evidence/wig-review-prefix.json). */
+.na-composer-input { flex: 1; resize: none; border: none; background: transparent; color: var(--ink); font-size: 16px; line-height: 1.5; padding: 6px 0; max-height: 160px; outline: none; }
+.na-composer-input::placeholder { color: var(--ink-faint); }
+.na-send { flex: 0 0 auto; width: 34px; height: 34px; border-radius: 50%; border: none; background: var(--accent); color: #1a1009; font-size: 16px; font-weight: 700; display: grid; place-items: center; }
+.na-send:disabled { opacity: 0.3; }
+.na-disclaimer { text-align: center; font-size: 11px; color: var(--ink-faint); margin: 8px 0 0; }
+
+/* ---- tool cards (the four surfaces, inline) ---- */
+.na-tool { border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); margin: 9px 0; overflow: hidden; }
+.na-tool[data-running="true"] { border-style: dashed; }
+.na-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; background: var(--glass); }
+.na-tool-i { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 12px; background: var(--surface); }
+.na-tool-label { font-weight: 700; font-size: 13px; }
+.na-tool-status { margin-left: auto; font-size: 10px; font-family: "JetBrains Mono", monospace; }
+.na-done { color: var(--green); }
+.na-running { color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
+.na-spin { width: 10px; height: 10px; border: 2px solid var(--accent-dim); border-top-color: var(--accent); border-radius: 50%; animation: na-spin 0.8s linear infinite; }
+@keyframes na-spin { to { transform: rotate(360deg); } }
+.na-tool-b { padding: 11px 12px; }
+
+/* context items */
+.na-ctx { display: flex; gap: 9px; align-items: baseline; padding: 4px 0; font-size: 12px; border-top: 1px solid var(--line-faint); }
+.na-ctx:first-child { border-top: none; }
+.na-rel { color: var(--accent); font-size: 11px; flex: 0 0 auto; }
+.na-kind { color: var(--ink-faint); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; flex: 0 0 64px; }
+.na-txt { color: var(--ink-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+
+/* sources */
+.na-src { display: flex; gap: 9px; align-items: center; padding: 8px 9px; border: 1px solid var(--line-faint); border-radius: 7px; margin-bottom: 6px; }
+.na-src.win { border-color: var(--accent); background: var(--accent-ghost); }
+.na-badge { font-size: 9px; padding: 2px 6px; border-radius: 5px; background: var(--surface); color: var(--ink-muted); font-weight: 600; }
+.na-src-t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; }
+.na-g { margin-left: auto; font-size: 11px; color: var(--ink-muted); flex: 0 0 auto; }
+.na-src.win .na-g { color: var(--accent); }
+.na-answer { margin-top: 9px; padding: 11px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); font-size: 13px; line-height: 1.6; }
+.na-faint { color: var(--ink-faint); }
+
+/* spreadsheet */
+.na-sheet { width: 100%; border-collapse: collapse; font-size: 12px; }
+/* WIG Content — "Tabular numbers for comparisons". This table is the runway
+   model: the whole point is reading a column of figures against each other, and
+   proportional digits make the columns wobble. */
+.na-sheet td { border: 1px solid var(--line-faint); padding: 6px 9px; text-align: right; font-variant-numeric: tabular-nums; }
+.na-sheet td:first-child { text-align: left; color: var(--ink-muted); }
+.na-sheet td.na-delta { color: var(--accent); font-weight: 700; background: var(--accent-ghost); }
+.na-reason { margin-top: 8px; font-size: 10px; color: var(--ink-faint); }
+
+/* memo */
+.na-memo { font-size: 13px; line-height: 1.6; }
+.na-memo h2 { margin: 0 0 6px; font-size: 14px; font-weight: 700; line-height: 1.55; }
+.na-memo p { margin: 6px 0; color: var(--ink); }
+.na-claim { border-left: 2px solid var(--accent); background: var(--accent-ghost); padding: 9px 11px; border-radius: 0 7px 7px 0; margin: 7px 0; }
+.na-claim-t { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); font-weight: 700; margin-bottom: 4px; }
+.na-cite-line { color: var(--ink-muted); font-size: 12px; }
+
+@media (max-width: 640px) {
+  .na-viewport { padding: 16px 12px 8px; }
+  .na-bubble { max-width: 100%; }
+  .na-ver { display: none; }
+}
+/* WIG Animations — "Honor prefers-reduced-motion". The animation half was
+   already here; the transition half was not, so .na-chip and .na-composer still
+   animated their border and colour under `reduce`. One rule, extended, rather
+   than a second block: a policy stated twice is a policy that will diverge.
+   The measurement that proves this is honest is in e2e/wig-review.mjs — a
+   runtime probe CANNOT prove it, because headless Chromium computes
+   animation-name: none whenever the media feature is emulated, whether or not
+   the page has any such rule. The check reads CSSOM for the rule itself. */
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+
+/* live graph rail (vendored @homenshum/nodegraph-live) */
+.na-rail {
+  width: 360px; min-width: 300px;
+  display: flex; flex-direction: column;
+  border-left: 1px solid var(--line);
+  background: var(--paper);
+}
+.na-rail-head {
+  display: flex; align-items: center; justify-content: space-between;
+  padding: 10px 14px; border-bottom: 1px solid var(--line-faint);
+  font-size: 12px; font-weight: 700;
+}
+.na-rail-meta { color: var(--ink-muted); font-size: 11px; font-weight: 500; }
+.na-rail-empty { padding: 14px; color: var(--ink-faint); font-size: 12px; }
+.na-rail-graph { padding: 8px; }
+/* Below 960px there is no room beside the conversation, so the rail becomes a
+   bottom panel — it is never hidden. It used to be `display: none` here, and
+   that was defect D1: `display:none` is invisible to React, so GraphRailPanel
+   (which mounts <NodeGraph> on `snapshot.nodes.length > 0`, i.e. on DATA) put a
+   WebGL renderer inside a 0x0 box the moment the first loop step landed. Sigma
+   throws "Container has no width", and with no error boundary the throw took
+   the whole app down. A rail that is always laid out cannot be mounted into a
+   collapsed container, so the two owners of "is the rail shown?" cannot
+   disagree. Regression: `node e2e/capture-journey-at-width.mjs --width 375`. */
+@media (max-width: 960px) {
+  .na-main { flex-direction: column; }
+  .na-rail {
+    width: auto; min-width: 0;
+    flex: 0 0 auto; max-height: 46vh; overflow-y: auto;
+    border-left: none; border-top: 1px solid var(--line);
+  }
+  .na-rail-head { position: sticky; top: 0; z-index: 1; background: var(--paper); }
+
+  /* WIG Interactions — "Match visual & hit targets": 44px minimum on mobile.
+     Measured at 375w before this rule: .na-link 66x19, .na-send 34x34,
+     .na-composer-input 285x33, and the vendored NodeGraph "fit" button 28x21
+     with 13x13 filter checkboxes. The vendored control is corrected from here
+     rather than by editing vendor/nodegraph-live, which stays a verbatim copy.
+     Producer: `npm run wig:review`. */
+  .na-link { display: inline-flex; align-items: center; min-height: 44px; }
+  .na-send { width: 44px; height: 44px; }
+  .na-composer-input { min-height: 44px; }
+  .na-rail-graph button { min-width: 44px; min-height: 44px; }
+  .na-rail-graph label { min-height: 44px; }
+}
+
+/* Response controls retain completed results when native streaming stops. */
+.na-stop { width: auto; min-width: 64px; padding: 0 12px; }
+.na-recovery { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }
+.na-recovery p { margin: 0 0 10px; }
+.na-recovery button { min-height: 44px; padding: 8px 12px; border: 1px solid var(--ink-muted); border-radius: var(--r-sm); background: var(--surface); color: var(--ink); }
+.na-recovery button:disabled { cursor: default; }
+.na-interrupted { color: var(--ink-muted); }
+</style></head>
+  <body>
+    <div id="root"><div class="na-app"><header class="na-appbar"><h1 class="na-brand"><span class="na-dot" aria-hidden="true"></span>NodeAgent<span class="na-ver mono">on assistant-ui</span></h1><span class="na-spacer"></span><nav class="na-resource-links" aria-label="Project resources"><a class="na-link" href="/nodeagent-v1.html">Prototype ↗</a><a class="na-link" href="https://github.com/HomenShum/NodeAgent">GitHub ↗</a></nav></header><main class="na-main"><div class="na-thread"><div class="na-viewport"><div class="na-msg na-msg-user" data-message-id="qNExHsX"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="BIlyPl5"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">Done. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.</span></p><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-done">3 items · 2 active</span></div><div class="na-tool-b"><div class="na-ctx"><span class="na-rel mono">0.20</span><span class="na-kind">document</span><span class="na-txt">I pushed the retrieval-latency benchmark doc to the room earlier.</span></div><div class="na-ctx"><span class="na-rel mono">0.19</span><span class="na-kind">message</span><span class="na-txt">Acme just dropped a competing teardown of our wedge. Investor call is in 40.</span></div><div class="na-ctx"><span class="na-rel mono">0.03</span><span class="na-kind">message</span><span class="na-txt">Finance flagged burn crept to 420k/mo after the two senior hires.</span></div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">🔎</span><span class="na-tool-label">Search &amp; synthesize</span><span class="na-tool-status na-done">high · grounded 3/4</span></div><div class="na-tool-b"><div class="na-src win"><span class="na-badge mono">RAG</span><span class="na-src-t">[1] room://benchmark — wedge holds vs Acme on latency</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[2] finance://burn — runway model</span><span class="na-g mono">0.56</span></div><div class="na-src"><span class="na-badge mono">DOC</span><span class="na-src-t">[3] diligence://wedge — competitive note</span><span class="na-g mono">0.44</span></div><div class="na-src"><span class="na-badge mono">WEB</span><span class="na-src-t">[4] Acme teardown blog — Why context rooms lose</span><span class="na-g mono">0.11</span></div><div class="na-answer">Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">▦</span><span class="na-tool-label">Update model</span><span class="na-tool-status na-done">v2 · 2 cells</span></div><div class="na-tool-b"><table class="na-sheet mono"><tbody><tr><td>Net burn / mo ($k)</td><td class="na-delta">420</td></tr><tr><td>Cash on hand ($k)</td><td class="">7560</td></tr><tr><td>Runway (months)</td><td class="na-delta">18</td></tr></tbody></table><div class="na-reason mono">↳ Correct base burn to the finance-audited 420k (was stress figure 510k).</div></div></div><div class="na-tool" data-running="false" data-interrupted="false"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">✎</span><span class="na-tool-label">Write memo</span><span class="na-tool-status na-done">5 blocks</span></div><div class="na-tool-b"><div class="na-memo"><h2>Acme — diligence memo</h2><p>The room asked: "Does our wedge hold versus Acme, and does the runway model survive 18 months?"</p><div class="na-claim"><div class="na-claim-t mono">◆ Claim · grounded 3/4</div>Best-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.</div><p class="na-cite-line">⌗ room://benchmark — wedge holds vs Acme on latency</p><p>Model updated to v2 (2 cells).</p></div></div></div></div></div><div class="na-msg na-msg-user" data-message-id="PFKxWYS"><div class="na-bubble na-bubble-user"><p style="white-space: pre-line;"><span data-status="complete">Does our wedge hold versus Acme, and does the runway model survive 18 months?</span></p></div></div><div class="na-msg na-msg-assistant" data-message-id="rQmExrY"><span class="na-av" aria-hidden="true">◆</span><div class="na-bubble na-bubble-assistant"><p style="white-space: pre-line;"><span data-status="complete">On it — pulling the room context, then searching, updating the model, and writing the memo.</span></p><div class="na-tool" data-running="false" data-interrupted="true"><div class="na-tool-h"><span class="na-tool-i" aria-hidden="true">💬</span><span class="na-tool-label">Gather room context</span><span class="na-tool-status na-interrupted">stopped</span></div></div><div class="na-recovery"><p role="status">Stopped this response. Completed work is kept.</p><button type="button">Retry response</button></div></div></div><div class="na-footer"><form class="na-composer"><textarea name="input" class="na-composer-input" placeholder="Ask the room anything…" rows="1" style="height: 36px !important;"></textarea><button class="na-send" aria-label="Send" type="button" disabled="">↑</button></form><p class="na-disclaimer">Deterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.</p></div></div></div><aside class="na-rail" data-testid="graph-rail" data-entities="12" data-edges="26"><div class="na-rail-head"><span>Session graph</span><span class="na-rail-meta mono">12 entities · 26 edges</span></div><div class="na-rail-graph"><section data-testid="nodegraph" style="border: 1px solid rgb(42, 46, 51); border-radius: 8px; background: rgb(20, 22, 25); color: rgb(226, 230, 233); padding: 16px; font-family: ui-sans-serif, system-ui, sans-serif;"><header style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;"><h3 style="margin: 0px; font-size: 14px; font-weight: 600;">Relationship graph</h3><p style="margin: 0px; font-size: 12px; color: rgb(154, 164, 173);">12 entities · 26 of 26 relationships shown</p></header><div data-testid="edge-type-filters" style="margin-bottom: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px;"><button type="button" data-testid="nodegraph-fit" style="border: 1px solid rgb(42, 46, 51); border-radius: 6px; background: transparent; color: rgb(154, 164, 173); padding: 2px 8px; font-size: 11px; cursor: pointer;">fit</button><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="evidence" type="checkbox" checked=""><span>evidence</span><span style="color: rgb(154, 164, 173);">(5)</span></label><label style="display: flex; align-items: center; gap: 6px; font-size: 12px;"><input data-filter-type="traversal" type="checkbox" checked=""><span>traversal</span><span style="color: rgb(154, 164, 173);">(21)</span><span title="interaction frequency, not evidence strength" style="color: rgb(154, 164, 173);">· local</span></label></div><div style="position: relative; border-radius: 6px; border: 1px solid rgb(42, 46, 51); height: 440px; width: 100%; background-image: radial-gradient(rgba(226, 230, 233, 0.07) 1px, transparent 1px); background-size: 22px 22px;"><div data-testid="nodegraph-canvas" style="position: absolute; inset: 0px;"><canvas class="sigma-edges" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-edgeLabels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-nodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-labels" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hovers" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-hoverNodes" width="716px" height="438px" style="position: absolute; width: 716px; height: 438px;"></canvas><canvas class="sigma-mouse" width="716px" height="438px" style="position: absolute; touch-action: none; user-select: none; width: 716px; height: 438px;"></canvas></div><canvas data-testid="cinematic-layer" width="716" style="pointer-events: none; position: absolute; inset: 0px; z-index: 10; height: 100%; width: 100%;" height="438"></canvas></div></section></div></aside></main></div></div>
+    <script type="module" src="/src/app/main.tsx"></script>
+  
+
+<textarea tabindex="-1" aria-hidden="true" style="min-height: 0px !important; max-height: none !important; height: 0px !important; visibility: hidden !important; overflow: hidden !important; position: absolute !important; z-index: -1000 !important; top: 0px !important; right: 0px !important; display: block !important; border-width: 0px; box-sizing: border-box; font-family: monospace; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; padding: 6px 0px; tab-size: 8; text-indent: 0px; text-rendering: auto; text-transform: none; width: 636px; word-break: normal; word-spacing: 0px; scrollbar-gutter: auto;"></textarea></body></html>
\ No newline at end of file
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.json b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.json
new file mode 100644
index 0000000..3ea80e1
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.json
@@ -0,0 +1,80 @@
+{
+  "layout": [
+    {
+      "class": "na-viewport",
+      "scrollTop": 1209,
+      "scrollHeight": 1673,
+      "clientHeight": 464,
+      "box": {
+        "x": 0,
+        "y": 54,
+        "width": 768,
+        "height": 464.40625,
+        "top": 54,
+        "right": 768,
+        "bottom": 518.40625,
+        "left": 0
+      }
+    },
+    {
+      "class": "na-recovery",
+      "scrollTop": 0,
+      "scrollHeight": 88,
+      "clientHeight": 88,
+      "box": {
+        "x": 69,
+        "y": 279.09375,
+        "width": 614.15625,
+        "height": 89.390625,
+        "top": 279.09375,
+        "right": 683.15625,
+        "bottom": 368.484375,
+        "left": 69
+      }
+    },
+    {
+      "class": "na-footer",
+      "scrollTop": 0,
+      "scrollHeight": 111,
+      "clientHeight": 111,
+      "box": {
+        "x": 18,
+        "y": 398.484375,
+        "width": 732,
+        "height": 111.046875,
+        "top": 398.484375,
+        "right": 750,
+        "bottom": 509.53125,
+        "left": 18
+      }
+    }
+  ],
+  "viewport": {
+    "width": 768,
+    "height": 960
+  },
+  "scroll": {
+    "x": 0,
+    "y": 0
+  },
+  "text": "NodeAgent\non assistant-ui\nPrototype ↗\nGitHub ↗\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nDone. The wedge holds on high-confidence grounding (3/4), the model now clears 18 months, and the cited memo is ready.\n\n💬\nGather room context\n3 items · 2 active\n0.20\nDOCUMENT\nI pushed the retrieval-latency benchmark doc to the room earlier.\n0.19\nMESSAGE\nAcme just dropped a competing teardown of our wedge. Investor call is in 40.\n0.03\nMESSAGE\nFinance flagged burn crept to 420k/mo after the two senior hires.\n🔎\nSearch & synthesize\nhigh · grounded 3/4\nRAG\n[1] room://benchmark — wedge holds vs Acme on latency\n0.44\nDOC\n[2] finance://burn — runway model\n0.56\nDOC\n[3] diligence://wedge — competitive note\n0.44\nWEB\n[4] Acme teardown blog — Why context rooms lose\n0.11\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n▦\nUpdate model\nv2 · 2 cells\nNet burn / mo ($k)\t420\nCash on hand ($k)\t7560\nRunway (months)\t18\n↳ Correct base burn to the finance-audited 420k (was stress figure 510k).\n✎\nWrite memo\n5 blocks\nAcme — diligence memo\n\nThe room asked: \"Does our wedge hold versus Acme, and does the runway model survive 18 months?\"\n\n◆ CLAIM · GROUNDED 3/4\nBest-grounded source [1] (RAG): Defends the wedge: NodeAgent retrieval latency p95 211ms versus Acme 540ms on the shared eval set; grounded answer rate 0.93 across 103 queries. Corroborated by [2] finance://burn — runway model; [3] diligence://wedge — competitive note.\n\n⌗ room://benchmark — wedge holds vs Acme on latency\n\nModel updated to v2 (2 cells).\n\nDoes our wedge hold versus Acme, and does the runway model survive 18 months?\n\n◆\n\nOn it — pulling the room context, then searching, updating the model, and writing the memo.\n\n💬\nGather room context\nstopped\n\nStopped this response. Completed work is kept.\n\nRetry response\n↑\n\nDeterministic demo — no keys. The agent runs the real ported modules over a fixed scenario.\n\nSession graph\n12 entities · 26 edges\nRelationship graph\n\n12 entities · 26 of 26 relationships shown\n\nfit\nevidence\n(5)\ntraversal\n(21)\n· local",
+  "overflow": 0,
+  "focus": {
+    "tag": "TEXTAREA",
+    "label": null
+  },
+  "buttons": [
+    {
+      "label": "Retry response",
+      "disabled": false
+    },
+    {
+      "label": "Send",
+      "disabled": true
+    },
+    {
+      "label": "fit",
+      "disabled": false
+    }
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.png b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.png
new file mode 100644
index 0000000..2c9adc8
Binary files /dev/null and b/evidence/header-reflow-20260905/E6f-nodeagent-header-recovery-01/source-stopped-768.png differ
diff --git a/evidence/header-reflow-20260905/E6f-nodeagent-header-reviewed.diff b/evidence/header-reflow-20260905/E6f-nodeagent-header-reviewed.diff
new file mode 100644
index 0000000..ffc9c98
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f-nodeagent-header-reviewed.diff
@@ -0,0 +1,80 @@
+diff --git a/.tours/03-debug-and-recovery.tour b/.tours/03-debug-and-recovery.tour
+index 9a866b6..2dcffb4 100644
+--- a/.tours/03-debug-and-recovery.tour
++++ b/.tours/03-debug-and-recovery.tour
+@@ -23,7 +23,7 @@
+     },
+     {
+       "file": "src/app/styles.css",
+-      "line": 216,
++      "line": 217,
+       "anchor": "@media (max-width: 960px)",
+       "description": "The site of defect D1. This block used to say `.na-rail { display: none }`. CSS owned visibility, React owned mounting and gated on data — so a WebGL renderer was mounted into a 0x0 box, threw, and took the app down. The rail is now a bottom panel instead: one owner, no hidden-but-mounted state."
+     },
+diff --git a/docs/codebase/TESTING.md b/docs/codebase/TESTING.md
+index 94b3169..4ef6513 100644
+--- a/docs/codebase/TESTING.md
++++ b/docs/codebase/TESTING.md
+@@ -50,7 +50,7 @@ from `src/`. See `docs/SIMPLIFICATION_REPORT.md`.
+ 
+ For the browser gate, the equivalent is to re-hide the graph rail on narrow
+ screens (`src/app/styles.css`, the `@media (max-width: 960px)` block at line
+-181). `e2e/capture-journey-at-width.mjs` asserts the graph canvas is not
++217). `e2e/capture-journey-at-width.mjs` asserts the graph canvas is not
+ zero-width — the *cause* of defect D1, not its symptom — so any mechanism that
+ re-hides the rail turns the gate red.
+ 
+diff --git a/src/app/styles.css b/src/app/styles.css
+index e1e4b82..4dbe1e2 100644
+--- a/src/app/styles.css
++++ b/src/app/styles.css
+@@ -61,19 +61,20 @@ button { font-family: inherit; cursor: pointer; }
+ /* shell */
+ .na-app { display: flex; flex-direction: column; height: 100%; }
+ .na-appbar {
+-  display: flex; align-items: center; gap: 12px;
+-  height: 54px; padding: 0 18px;
++  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
++  min-height: 54px; padding: 4px 18px;
+   border-bottom: 1px solid var(--line);
+   background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
+   backdrop-filter: blur(12px);
+ }
+ /* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
+-.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
++.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+ .na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
+ @keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
+ .na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
+ .na-spacer { flex: 1; }
+-.na-link { font-size: 12px; color: var(--ink-muted); }
++.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
++.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
+ .na-link:hover { color: var(--accent); }
+ 
+ .na-main { flex: 1; min-height: 0; display: flex; }
+diff --git a/src/features/node-agent/components/NodeAgentDemoApp.tsx b/src/features/node-agent/components/NodeAgentDemoApp.tsx
+index 5cce69c..aa00f8c 100644
+--- a/src/features/node-agent/components/NodeAgentDemoApp.tsx
++++ b/src/features/node-agent/components/NodeAgentDemoApp.tsx
+@@ -34,12 +34,14 @@ export function NodeAgentDemoApp() {
+             <span className="na-ver mono">on assistant-ui</span>
+           </h1>
+           <span className="na-spacer" />
+-          <a className="na-link" href="/nodeagent-v1.html">
+-            Prototype ↗
+-          </a>
+-          <a className="na-link" href="https://github.com/HomenShum/NodeAgent">
+-            GitHub ↗
+-          </a>
++          <nav className="na-resource-links" aria-label="Project resources">
++            <a className="na-link" href="/nodeagent-v1.html">
++              Prototype ↗
++            </a>
++            <a className="na-link" href="https://github.com/HomenShum/NodeAgent">
++              GitHub ↗
++            </a>
++          </nav>
+         </header>
+ 
+         <main className="na-main">
diff --git a/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_CANDIDATE.json b/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_CANDIDATE.json
new file mode 100644
index 0000000..5b9b493
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_CANDIDATE.json
@@ -0,0 +1,177 @@
+{
+  "at": "2026-09-05T10:25:44.372012+00:00",
+  "proof": "NODEAGENT-ENLARGED-HEADER-01",
+  "status": "ROOT_SOURCE_PROOF_FROZEN_INDEPENDENT_REVIEW_PENDING",
+  "sourceRoot": "D:\\VSCode Projects\\cafecorner_nodebench\\nodebench_ai4\\.portfolio-worktrees\\nodeagent-current-consumer-20260905",
+  "baseCommit": "5362505886883b49c8037bf5b9fb4ff2738d47a7",
+  "branch": "codex/nodeagent-enlarged-header-20260905",
+  "sourceOwners": 2,
+  "authoredPaths": {
+    "src/app/styles.css": {
+      "size": 14362,
+      "sha256": "6e6feb6d48d3d2623d5139a890b4f58149e315153aa20934e0ee8f698febfb87"
+    },
+    "src/features/node-agent/components/NodeAgentDemoApp.tsx": {
+      "size": 2209,
+      "sha256": "5bfb4d66491582163365fd8798444dc2744df5389cbb29b519f671e5d02a0707"
+    },
+    ".tours/03-debug-and-recovery.tour": {
+      "size": 4149,
+      "sha256": "9aa6c7d7ecd380b5564bfaf27ea24a7a09d72b8db7ffdcb8d249f533c49e099e"
+    },
+    "docs/codebase/TESTING.md": {
+      "size": 5470,
+      "sha256": "512d3df76468fc3229ce0f3506f97bd9fe0d0529b5827cfbef3157ac199ecfc6"
+    },
+    "e2e/header-reflow-proof.mjs": {
+      "size": 7393,
+      "sha256": "1506b7de8f61e173c31ef12ffa9b85464beee783990b58bbadd5ab6fdb79bb1c"
+    }
+  },
+  "diffSha256": "948b9f9ce79bf346a4c133ee0c3cf94541a5ab7b453a45f4cca570d36d84cce9",
+  "beforeChecks": 12,
+  "afterChecks": 72,
+  "afterCaptures": 12,
+  "recoveryChecks": 145,
+  "recoveryCaptures": 38,
+  "tests": 41,
+  "typecheckBuild": "PASS",
+  "citations": "PASS3TOURS36STEPS11REFERENCES_AFTER_NUMERIC_ANCHOR_CORRECTION",
+  "comparisons": [
+    {
+      "width": 320,
+      "textScale": 100,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 54,
+      "beforeDocumentOverflow": 0,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": true,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 320,
+      "textScale": 200,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 96.390625,
+      "beforeDocumentOverflow": 91,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": null,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 390,
+      "textScale": 100,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 54,
+      "beforeDocumentOverflow": 0,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": true,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 390,
+      "textScale": 200,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 96.390625,
+      "beforeDocumentOverflow": 21,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": null,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 768,
+      "textScale": 100,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 54,
+      "beforeDocumentOverflow": 0,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": true,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 768,
+      "textScale": 200,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 54,
+      "beforeDocumentOverflow": 0,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": null,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 1024,
+      "textScale": 100,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 54,
+      "beforeDocumentOverflow": 0,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": true,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 1024,
+      "textScale": 200,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 54,
+      "beforeDocumentOverflow": 0,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": null,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 1440,
+      "textScale": 100,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 54,
+      "beforeDocumentOverflow": 0,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": true,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 1440,
+      "textScale": 200,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 54,
+      "beforeDocumentOverflow": 0,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": null,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 1920,
+      "textScale": 100,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 54,
+      "beforeDocumentOverflow": 0,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": true,
+      "hrefsUnchanged": true
+    },
+    {
+      "width": 1920,
+      "textScale": 200,
+      "beforeHeaderHeight": 54,
+      "afterHeaderHeight": 54,
+      "beforeDocumentOverflow": 0,
+      "afterDocumentOverflow": 0,
+      "normalHeaderBoxUnchanged": null,
+      "hrefsUnchanged": true
+    }
+  ],
+  "fullGrades": null,
+  "limitations": [
+    "Computed text enlargement is not OS or browser zoom.",
+    "Manrope loaded; JetBrains Mono font check false.",
+    "Existing enlarged empty-state clipping and graph readability are outside this header owner.",
+    "Source-only header; generated consumer unchanged and not reinstalled in this slice.",
+    "Original missing vendor sourcemap warnings retained."
+  ],
+  "evidence": [
+    "E6f_NODEAGENT_HEADER_REPAIR_PLAN.md",
+    "E6f-nodeagent-header-before-01/report.json",
+    "E6f-nodeagent-header-after-01/report.json",
+    "E6f-nodeagent-header-recovery-01/report.json",
+    "E6f-nodeagent-header-checks/commands.json"
+  ]
+}
diff --git a/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_JUDGE.json b/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_JUDGE.json
new file mode 100644
index 0000000..a5a4939
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_JUDGE.json
@@ -0,0 +1,1401 @@
+{
+  "schemaVersion": "portfolio.nodeagent-header-independent-judge/v1",
+  "at": "2026-09-05T10:39:26.985592+00:00",
+  "verdict": "APPROVED_SCOPED_HEADER_IMPLEMENTATION",
+  "request": "Independently review the frozen NodeAgent header fix and replay bounded390/1440 behavior without repeating the recovery matrix or changing product files.",
+  "reviewerContext": "Same nonauthor implementation reviewer; owns the independent browser probe and previous5362505 criterion assessment, not the candidate implementation.",
+  "candidate": {
+    "base": "5362505886883b49c8037bf5b9fb4ff2738d47a7",
+    "branch": "codex/nodeagent-enlarged-header-20260905",
+    "authoredPaths": {
+      "src/app/styles.css": {
+        "size": 14362,
+        "sha256": "6e6feb6d48d3d2623d5139a890b4f58149e315153aa20934e0ee8f698febfb87"
+      },
+      "src/features/node-agent/components/NodeAgentDemoApp.tsx": {
+        "size": 2209,
+        "sha256": "5bfb4d66491582163365fd8798444dc2744df5389cbb29b519f671e5d02a0707"
+      },
+      ".tours/03-debug-and-recovery.tour": {
+        "size": 4149,
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+}
diff --git a/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_JUDGE.md b/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_JUDGE.md
new file mode 100644
index 0000000..2f916c0
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_JUDGE.md
@@ -0,0 +1,17 @@
+Builder mode. **Approved for the scoped header implementation.** A user enlarging source-chat text can now read the brand and both resource links. The fixed-height overflow is corrected at the header owner; existing empty-state/graph limits remain open.
+
+**Re your request:** independently judge the frozen header patch with real pixels and bounded native interaction. The two runtime files and three supporting files exactly match the candidate receipt on base `5362505886883b49c8037bf5b9fb4ff2738d47a7`. The other 230 existing source bindings are unchanged.
+
+The new native `Project resources` navigation groups the same two anchors. Header wrapping, minimum height and nonshrinking ownership keep content in the layout instead of overflowing a 54px row. The root before/after proof closes 91px overflow at 320px and 21px at 390px. All six normal-text header, branding, link and main boxes are exactly unchanged. [Candidate](E6f_NODEAGENT_HEADER_CANDIDATE.json), [actual labelled before](E6f-nodeagent-header-before-01/before-390-text-200-boundary.png).
+
+Independent replay passed **60 checks / 14 captures** at 390×844 and 1440×960, normal and doubled computed text, with normal motion. Both links are visibly focused and hittable; native pointer/Enter activation requests their exact existing destinations. Destination requests use labelled intercepted documents, so their content is not certified. No page errors, console errors or failed requests occurred in observed app pages. [Raw replay](E6f-nodeagent-header-independent-02/report.json), [focused enlarged Prototype](E6f-nodeagent-header-independent-02/source-390-text-200-focus-0.png), [focused GitHub](E6f-nodeagent-header-independent-02/source-390-text-200-focus-1.png).
+
+Restoring old layout rules only in browser memory reproduces the 21px overflow and offscreen links; removing that override restores zero overflow. This verifies the causal boundary without changing product files. [Knockout pixels](E6f-nodeagent-header-independent-02/source-390-text-200-old-layout-knockout.png).
+
+The first probe stopped on an ambiguous selector including assistant-ui's hidden autosize textarea; its failed report and exact probe remain. Selecting the actual composer fixes the probe. A separate initial custody assertion correctly noticed two later numeric citation updates; their before hashes match base and only those references differ. The other 232 recovery inputs match current bytes.
+
+Root's 145-check/38-capture source recovery, 41 tests and typecheck/build logs pass. Independent tour validation passes 3 tours / 36 steps / 11 citations. Root header captures use reduced motion and 900px height; independent normal-motion/focus captures are separate. No entire recovery matrix was repeated.
+
+Existing enlarged empty-state clipping and overlapping graph labels remain unresolved. Manrope is loaded; JetBrains Mono check is false. Computed font doubling is not native zoom or real-device verification. Missing vendor source maps remain warnings. No generated consumer, provider, Convex or deployment was changed. The prior 44-row assessment stays historical for `5362505`; final grades remain null. Publication metadata and shared integration still require their own bounded check.
+
+[Exact inputs, raw artifact hashes and limitations](E6f_NODEAGENT_HEADER_JUDGE.json).
diff --git a/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_REPAIR_PLAN.md b/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_REPAIR_PLAN.md
new file mode 100644
index 0000000..c6b1e2b
--- /dev/null
+++ b/evidence/header-reflow-20260905/E6f_NODEAGENT_HEADER_REPAIR_PLAN.md
@@ -0,0 +1,11 @@
+Builder. **Re your request:** usable individual repositories with graded visual, responsive and interaction behavior.
+
+A developer enlarging text must still be able to read the product name and reach its two resource links. At current main5362505, the fixed54px single flex row puts Prototype partly above the viewport and GitHub beyond its right edge:91px document overflow at320 and21px at390. Root inspected three actual labelled3px before boundaries, including unchanged1440 normal text, in E6f-nodeagent-header-before-01. Source stayed byte-identical during all12 cells.
+
+The cause is content constrained by fixed height and one nonwrapping row. The browser attempts to shrink each link to its longest word, which also separates its arrow onto another line. Simply hiding overflow would conceal destinations; forcing a smaller font would defeat enlargement. The repair belongs to the existing header owner.
+
+Named proof: **NODEAGENT-ENLARGED-HEADER-01**. Root owns only `src/features/node-agent/components/NodeAgentDemoApp.tsx` header resource grouping and `src/app/styles.css` corresponding header rules. Add a native named navigation group around the two existing links so they wrap together, replace fixed height with content-driven minimum height, allow the header to wrap without flex shrinking, and keep link text/arrow together. This one grouping maps to the observed need to keep related destinations together during wrap. No backend, adapter, provider, data, generated consumer or graph owner changes.
+
+Verify same before/after twelve320/390/768/1024/1440/1920 normal/doubled-computed-text cells; header/brand/link geometry, keyboard reachability, main below header, existing normal-height identity and current runtime recovery at390/1440. Inspect actual resulting pixels. Record computed text enlargement as a browser diagnostic, not OS/browser zoom certification. Current Manrope font check passes; JetBrains Mono check is false and cannot support a complete font claim. Retain all causal failures. Run typecheck/build and the existing applicable tests; no full product grade upgrade follows automatically. Independent nonauthor source/pixel review precedes publication and integration.
+
+All prior failures and the historical merged proof remain intact. The original Pi branch is untouched. Source/header proof and a narrow handoff note are the proposed authored publication additions beyond these two owners. The required citation check found the existing media block moved216 to217; its tour numeric anchor and the current testing guide's older181 reference are corrected to217, without changing their meaning.
diff --git a/evidence/header-reflow-20260905/README.md b/evidence/header-reflow-20260905/README.md
new file mode 100644
index 0000000..7f94a20
--- /dev/null
+++ b/evidence/header-reflow-20260905/README.md
@@ -0,0 +1,19 @@
+# Source header reflow evidence
+
+A developer enlarging source-chat text lost the Prototype and GitHub links outside a fixed54px header. A native resource navigation group now wraps together, and the header grows while retaining its normal54px minimum. The two destinations and all six measured normal layouts remain unchanged.
+
+[Independent judgment](E6f_NODEAGENT_HEADER_JUDGE.md) approves the two runtime owners and three supporting source files on base5362505. Root recorded12 normal/doubled-text cells,72 header assertions and145 existing recovery assertions/38 captures. Independent replay adds60 assertions/14 captures, exact native link requests and an old-layout knockout. All41 tests, typecheck/build and citations pass. [Frozen candidate](E6f_NODEAGENT_HEADER_CANDIDATE.json).
+
+In a fresh isolated source checkout with Node22, install the checked-in dependencies and Chromium, then run the portable browser proof into a new directory:
+
+```powershell
+npm ci
+npx playwright install chromium
+node e2e/header-reflow-proof.mjs . "<absolute new output directory>" after
+```
+
+The proof starts its own loopback Vite server with environment-file loading disabled, uses the actual current source and permits only that server and Google font requests. It closes its own browser/server. Reports bind the checked source bytes; this command checks the header and keyboard reachability, not the full repository. The earlier recovery command is documented in the main handoff and its exact logs remain here.
+
+The exact original ambiguous-composer probe, citation custody assertion and before snapshots remain raw. Source before captures use reduced motion and900px height; independent390×844/1440×960 captures use normal motion. Enlarged text is a computed-size diagnostic, not native zoom or physical-device proof. Intercepted link destinations prove requests, not remote content. Manrope loads; the JetBrains Mono check is false. Existing enlarged empty-state clipping, graph readability, advisories, provider and complete grades remain open.
+
+`manifest.json` records exact raw copies and local source provenance. Raw working/index bytes are protected by this directory's attributes; historical receipts keep their original statuses. Repository integration and deployment are separate from this local source review.
diff --git a/evidence/header-reflow-20260905/manifest.json b/evidence/header-reflow-20260905/manifest.json
new file mode 100644
index 0000000..0d7dd4b
--- /dev/null
+++ b/evidence/header-reflow-20260905/manifest.json
@@ -0,0 +1,3321 @@
+{
+  "schemaVersion": "nodeagent-header-reflow-evidence/v1",
+  "at": "2026-09-05T10:42:27.092728+00:00",
+  "baseCommit": "5362505886883b49c8037bf5b9fb4ff2738d47a7",
+  "rawCopies": [
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+      "sha256": "323a2a60b55bb029d3f5b7c784582c31a1f98ee0ab665355a1b4d2c6c7a7aa29"
+    },
+    {
+      "path": "E6f_NODEAGENT_HEADER_REPAIR_PLAN.md",
+      "bytes": 2629,
+      "sha256": "d32b207a49a1424cff25aa6a5c09c5ecb1ff20f904a190fa6dad9584859823ab"
+    },
+    {
+      "path": "README.md",
+      "bytes": 2314,
+      "sha256": "bf299a447090308d7d13232ea6ec181a2e59373018dea74657d5cd7c8cff7ea0"
+    }
+  ],
+  "fileCountExcludingManifest": 302,
+  "fullGrades": null
+}
diff --git a/src/app/styles.css b/src/app/styles.css
index e1e4b82..4dbe1e2 100644
--- a/src/app/styles.css
+++ b/src/app/styles.css
@@ -61,19 +61,20 @@ button { font-family: inherit; cursor: pointer; }
 /* shell */
 .na-app { display: flex; flex-direction: column; height: 100%; }
 .na-appbar {
-  display: flex; align-items: center; gap: 12px;
-  height: 54px; padding: 0 18px;
+  display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: 0 12px;
+  min-height: 54px; padding: 4px 18px;
   border-bottom: 1px solid var(--line);
   background: linear-gradient(180deg, rgba(21, 20, 19, 0.92), rgba(21, 20, 19, 0.7));
   backdrop-filter: blur(12px);
 }
 /* .na-brand is the <h1>; the reset keeps the appbar looking identical. */
-.na-brand { display: flex; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
+.na-brand { display: flex; flex-shrink: 0; align-items: center; gap: 8px; font-weight: 800; letter-spacing: -0.02em; margin: 0; font-size: 14px; line-height: 1.55; }
 .na-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(217, 119, 87, 0.5); animation: na-breathe 3.4s ease infinite; }
 @keyframes na-breathe { 0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(217,119,87,.5);} 50% { transform: scale(1.18); box-shadow: 0 0 0 7px rgba(217,119,87,0);} }
 .na-ver { color: var(--ink-faint); font-size: 11px; font-weight: 500; }
 .na-spacer { flex: 1; }
-.na-link { font-size: 12px; color: var(--ink-muted); }
+.na-resource-links { display: flex; flex-shrink: 0; align-items: center; gap: 12px; }
+.na-link { font-size: 12px; color: var(--ink-muted); white-space: nowrap; }
 .na-link:hover { color: var(--accent); }
 
 .na-main { flex: 1; min-height: 0; display: flex; }
diff --git a/src/features/node-agent/components/NodeAgentDemoApp.tsx b/src/features/node-agent/components/NodeAgentDemoApp.tsx
index 5cce69c..aa00f8c 100644
--- a/src/features/node-agent/components/NodeAgentDemoApp.tsx
+++ b/src/features/node-agent/components/NodeAgentDemoApp.tsx
@@ -34,12 +34,14 @@ export function NodeAgentDemoApp() {
             <span className="na-ver mono">on assistant-ui</span>
           </h1>
           <span className="na-spacer" />
-          <a className="na-link" href="/nodeagent-v1.html">
-            Prototype ↗
-          </a>
-          <a className="na-link" href="https://github.com/HomenShum/NodeAgent">
-            GitHub ↗
-          </a>
+          <nav className="na-resource-links" aria-label="Project resources">
+            <a className="na-link" href="/nodeagent-v1.html">
+              Prototype ↗
+            </a>
+            <a className="na-link" href="https://github.com/HomenShum/NodeAgent">
+              GitHub ↗
+            </a>
+          </nav>
         </header>
 
         <main className="na-main">