policy: Bun is tier 1, Deno is being removed — correct local CLAUDE.md by hyperpolymath · Pull Request #74 · hyperpolymath/proof-burrower

hyperpolymath · 2026-08-26T22:40:13Z

Owner ruling, 2026-08-26:

"deno is to go and bun is the way we are going, put it first everywhere unless not possible and explain why if not"

This repo's .claude/CLAUDE.md is what an agent reads first. Correcting hyperpolymath/standards (#655) fixes one copy of ~372 — agents read the local one.

What this PR actually changes

Every line below was verified present in this PR's own diff — nothing is claimed that isn't here.

change	in this diff
ALLOWED: Deno row → Bun, tier 1	✅
BANNED: `\| Bun \| Deno \|` row removed	✅
BANNED: Deno added, replacement Bun	✅
BANNED: Node.js/npm/pnpm/yarn → Bun	✅
rule: manifest now required (`package.json` + `bun.lock`)	✅
rule: `bun install --production` replaces the node_modules rule	✅
pkg mgmt: JS deps → Bun, `bunx --no-install --bun`	✅
repaired blanking scar: `Only where cannot` → Only where AffineScript cannot	✅

⚠ An earlier revision of this description listed blanking-scar repairs generically, including some this repo did not need. codacy-production correctly flagged that as a description/diff mismatch. The table above is now generated from the diff itself.

Review feedback addressed

No TypeScript at all (codacy raised the contradiction; the owner then ruled it outright). The Bun row advertised "Executes .ts directly" inside a file that bans TypeScript. Owner ruling: TypeScript should not exist at all — so every .ts reference is gone from the row, including JS/TS in its label. It now reads JS runtime, running compiled ESM/JS.
Deno missing from BANNED (codacy): added — the ruling was only half expressed without it.
Unpinned bunx (coderabbitai, Security & Privacy): a bare bunx <tool> can fetch a package outside bun.lock and can start Node via a shebang. Guidance now requires a declared devDependency plus bunx --no-install --bun.

Not taken: "a npm-compatible" (LanguageTool is wrong — "an" is correct before a vowel sound); "--frozen-lockfile is redundant" (correct, and no such flag was added); the Nix → Guix point (real, but a separate ruling — deliberately not folded into a Deno/Bun change).

Scope

Policy text only — no code, no workflows, no build files.

Related: #655 (governing document), #658 (Deno→Bun assessment: 18 repos blocked on @affinescript/* npm packages that do not exist), #659 (policy duplicated into ~372 copies).

Owner ruling 2026-08-26: "deno is to go and bun is the way we are going, put it first everywhere unless not possible and explain why if not". This file is what an agent reads FIRST and it listed Bun as BANNED with Deno as its replacement. Correcting hyperpolymath/standards (#655) fixes one copy of ~372 - agents read the local one. This is that local copy. ALLOWED **Deno** "Replaces Node/npm/bun" -> **Bun** tier 1 BANNED | Bun | Deno | -> row REMOVED BANNED Node.js / npm / pnpm/yarn -> Deno -> -> Bun rule "No package.json for runtime deps - use deno.json imports" -> Use package.json + bun.lock; a manifest is REQUIRED rule "No node_modules in production" -> bun install --production, pinned via bun.lock pkg JS deps: Deno -> JS deps: Bun (package.json + bun.lock), bunx WHY THE MANIFEST RULE MATTERS MOST. "No package.json for runtime deps" did not express a preference - it told repos not to declare their dependencies at all. hyperpolymath/ubicity imported zod and glob, shipped NO manifest of any kind, and could not build under ANY toolchain. Fixed in ubicity#107; the rule that caused it is fixed here. ALSO REPAIRED - blanking scars from the ReScript purge, which substituted the token with an EMPTY STRING rather than removing the text: | | AffineScript | -> | ReScript | AffineScript | 1. **No new files** ... -> **No new ReScript files** ... | **JavaScript** | Only where cannot | -> Only where AffineScript cannot Restoring the NAME in a policy table does not reintroduce the language. Same root cause as the rm -rf /lib found in wordpress-tools#62. Policy text only - no code, no workflows, no build files. 1 file(s). NOT FOLDED IN: "Fallback: Nix (flake.nix)" is stale (Guix superseded Nix per ADR-2026-STACK-MIGRATION) but that is a separate ruling; flagged, not changed.

coderabbitai · 2026-08-26T22:40:21Z

📝 Walkthrough

Summary by CodeRabbit

Documentation
- Updated development guidance to use Bun as the default JavaScript runtime and package manager.
- Replaced Deno-specific instructions with package.json and bun.lock requirements.
- Added guidance for production installs and running commands with Bun.
- Clarified supported and prohibited JavaScript tooling.

Walkthrough

The Claude guidance changes the default JavaScript runtime from Deno to Bun. It updates tool restrictions, dependency requirements, production installation, and local tool execution commands.

Changes

Runtime Policy

Layer / File(s)	Summary
Bun runtime and package management rules `affinescript/.claude/CLAUDE.md`	The guidance sets Bun as the default runtime, bans Deno and alternative package managers, requires `package.json` with `bun.lock`, and standardises production and local tool commands.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: 🟡 Moderate · up to a0e7a

The policy update promotes Bun and removes Deno, but its execution rule does not cover existing VS Code package scripts that still invoke npm and direct tooling. That leaves contradictory guidance and can cause agents to preserve banned commands; the PR should receive a targeted policy fix or explicit owner acceptance before merge.

Poem

A rabbit checks the Bun-bound track
With bun.lock safely at its back
bunx starts each tool on cue
Old runtime rules are now made new
The guidance stays clear and exact

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description gives a detailed summary and change list, but it omits the required RSR Quality Checklist and Testing section. It also does not use the template's Summary and Changes headings directly…	Add the RSR Quality Checklist with each applicable item marked, and add a Testing section that states which checks or commands were run. Use the template headings where applicable.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the main policy change: Bun becomes tier 1 and Deno is removed from the local CLAUDE.md file.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Description check

Explanation

The description gives a detailed summary and change list, but it omits the required RSR Quality Checklist and Testing section. It also does not use the template's Summary and Changes headings directly.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

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gitar-bot · 2026-08-26T22:40:49Z

Gitar is working

_Gitar

codacy-production · 2026-08-26T22:43:05Z

Up to standards ✅

🟢 Issues 0 issues

Results:
0 new issues

View in Codacy

AI Reviewer: first review requested successfully. AI can make mistakes. Always validate suggestions.

_{TIP This summary will be updated as you push new changes.}

codacy-production

Pull Request Overview

The pull request successfully promotes Bun to a Tier 1 runtime and removes Deno as the primary JavaScript/TypeScript engine. However, there are significant implementation gaps that prevent the PR from being fully complete. Most importantly, while the PR description claims to restore 'ReScript' terminology and update Rule #1 to reference '.res' files, these changes are entirely absent from the code.

Additionally, a logic contradiction was identified in the policy description for Bun: stating that it executes '.ts' files directly undermines the project's explicit ban on TypeScript files. This ambiguity should be resolved to ensure consistent behavior from AI agents using this configuration file. Minor formatting inconsistencies in file name references were also noted.

About this PR

Significant implementation gap: The PR description claims to repair 'blanking scars from the ReScript purge' (restoring the ReScript row and updating Rule #1 to reference .res files), but these changes are absent from the provided code.

Test suggestions

Verify Bun is promoted to Tier 1 in the ALLOWED table and Deno is removed.\n- [x] Verify Node.js/npm/pnpm/yarn are redirected to Bun in the BANNED table.\n- [x] Verify enforcement rules explicitly require a package.json manifest and bun.lock.\n- [ ] Verify restoration of 'ReScript' text in policy tables (as claimed in description).\n- [ ] Verify Rule 1 is updated to reference 'ReScript files' instead of 'TypeScript files'.

Low confidence findings

The PR description mentions correcting the 'JavaScript' row scar from 'Only where cannot' to 'Only where AffineScript cannot', but the existing file already contained the correct phrasing.

_{TIP Improve review quality by adding custom instructions}
_{TIP How was this review? Give us feedback}

codacy-production · 2026-08-26T22:44:26Z

 |---------------|----------|-------|
 | **AffineScript** | Primary application code | Compiles to JS, type-safe |
-| **Deno** | Runtime & package management | Replaces Node/npm/bun |
+| **Bun** | JS/TS runtime & package management (tier 1) | Default for all new work. Executes `.ts` directly, no build step. Uses an npm-compatible `package.json` plus `bun.lock` — both are expected, not anti-patterns. |


_{🟡 MEDIUM RISK}

The statement that Bun 'Executes .ts directly, no build step' contradicts the ban on TypeScript (line 45 and 67) and the requirement for AffineScript to be compiled to JavaScript (line 26). This ambiguity may cause the AI agent to generate prohibited TypeScript code.\n\nsuggestion\n| **Bun** | JS/TS runtime & package management (tier 1) | Default for all new work. Uses an npm-compatible `package.json` plus `bun.lock` — both are expected, not anti-patterns. |\n

codacy-production · 2026-08-26T22:44:26Z

-2. **No package.json - use deno.json deps** - Use deno.json imports
-3. **No node_modules in production** - Deno caches deps automatically
+2. **Use `package.json` + `bun.lock` for JS runtime deps** - Bun is npm-compatible; a manifest is REQUIRED
+3. **`bun install --production` for production deps** - resolved from `package.json`, pinned via `bun.lock`


_{⚪ LOW RISK}

Nitpick: Use backticks for consistency with other rules in this document.\n\nsuggestion\n3. **`bun install --production` for production deps** - resolved from `package.json`, pinned via `bun.lock`\n

Review feedback from codacy-production and coderabbitai on the policy wave. Three substantive points, all accepted: 1. ".ts CONTRADICTION" (codacy, MEDIUM, raised on most of the wave). The Bun row said "Executes .ts directly, no build step" in a file whose BANNED table bans TypeScript. OWNER RULING: TypeScript "should not exist at all", so advertising Bun's TypeScript capability is wrong regardless of whether it is true. Every .ts reference is removed from the row, including "JS/TS" in its label. 2. "DENO MISSING FROM BANNED" (codacy, raised repeatedly). The wave removed Deno from ALLOWED but never added it to BANNED, so the ruling was only half expressed. Added | Deno | Bun |. 3. "UNPINNED bunx" (coderabbitai, Security & Privacy). A bare `bunx <tool>` can fetch a package outside package.json/bun.lock, and can start Node via a shebang - both contrary to estate SHA-pinning doctrine and the Node ban. Guidance now requires a declared devDependency plus `bunx --no-install --bun <tool>`. NOT taken: "a npm-compatible" (LanguageTool is wrong, "an" is correct before a vowel sound); "--frozen-lockfile is redundant" (correct - no change needed, and none made); the Nix->Guix point (real, but a separate ruling, deliberately not folded into a Deno/Bun change).

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Actionable comments posted: 1

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Inline comments:
In `@affinescript/.claude/CLAUDE.md`:
- Around line 46-49: Update the vscode:prepublish script in the VS Code package
configuration to use Bun instead of npm, keeping the existing packaging behavior
unchanged and consistent with the tooling policy.

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GitHub Actions: OpenSSF Compliance / 0_openssf-compliance.txt: policy: Bun is tier 1, Deno is being removed — correct local CLAUDE.md

Conclusion: failure

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