feat(agents): add Claude Cloud demo harness

.github/workspace-dep-closures.json

@@ -164,6 +164,7 @@
       "crates/broadcast",
       "crates/channel_sender",
       "crates/channels",
+      "crates/claude_cloud_agents",
       "crates/codex_cloud_agents",
       "crates/codex_connection",
       "crates/comms_db_client",
@@ -275,6 +276,7 @@
       "crates/channel_sender",
       "crates/channels",
       "crates/chat",
+      "crates/claude_cloud_agents",
       "crates/codex_cloud_agents",
       "crates/codex_connection",
       "crates/comms_db_client",
@@ -1833,6 +1835,26 @@
       "crates/share_permission_db_utils",
       "crates/workspace-hack"
     ],
+    "claude_cloud_agents": [
+      "crates/agent_runtime_protocol",
+      "crates/bot_id",
+      "crates/bot_token",
+      "crates/claude_cloud_agents",
+      "crates/cowlike",
+      "crates/cursor_api_key",
+      "crates/harness_id",
+      "crates/harness_token",
+      "crates/macro_auth",
+      "crates/macro_authorization",
+      "crates/macro_env",
+      "crates/macro_env_var",
+      "crates/macro_user_id",
+      "crates/macro_uuid",
+      "crates/model-error-response",
+      "crates/model_user",
+      "crates/remote_env_var",
+      "crates/workspace-hack"
+    ],
     "codex_cloud_agents": [
       "crates/activity",
       "crates/agent",

.gitignore

@@ -49,3 +49,6 @@ infra/local/generated/
 # Per-developer macrod config contains this machine's harness bearer token.
 /macrod.toml
 /macrod.webhook-state.json
+
+# Owner-bound subscription OAuth credentials for the internal Claude demo.
+/.claude-cloud/

Cargo.toml

@@ -29,6 +29,7 @@ members = [
   "crates/crm",
   "crates/cursor_api_key",
   "crates/cursor_cloud_agents",
+  "crates/claude_cloud_agents",
   "crates/embedding",
   "crates/email_api_client",
   "crates/entity_mutation",
@@ -302,6 +303,7 @@ sqlx = { version = "0.8.6", features = [
   "uuid",
 ] }
 sqlx-core = { version = "0.8.6" }
+sse-core = { version = "0.2.3", default-features = false, features = ["std"] }
 strum = { version = "0.27.1", features = ["derive"] }
 tempfile = "3"
 thiserror = "2.0.0"

apps/web/src/features/block-agent/component/AgentSplitHeader.tsx

@@ -94,6 +94,7 @@ export function AgentSplitHeader(props: {
     {
       label: () => {
         const provider = props.session?.external?.provider;
+        if (provider === 'claude-cloud') return 'Open in Claude';
         if (!provider) return 'Open externally';
         return `Open in ${provider.charAt(0).toUpperCase()}${provider.slice(1)}`;
       },

apps/web/src/features/block-agent/component/compose-agent-session-options.test.ts

@@ -89,6 +89,7 @@ describe('isManagedHarness', () => {
     expect(isManagedHarness('in-memory')).toBe(true);
     expect(isManagedHarness('macro-inmem')).toBe(true);
     expect(isManagedHarness('cursor')).toBe(true);
+    expect(isManagedHarness('claude-cloud')).toBe(true);
   });
 
   it('refuses external daemons', () => {

apps/web/src/features/block-agent/component/compose-agent-session-options.ts

@@ -42,7 +42,8 @@ export function isManagedHarness(harness: string): boolean {
     harness === 'in-memory' ||
     harness === 'macro-inmem' ||
     harness === 'cursor' ||
-    harness === 'codex-cloud'
+    harness === 'codex-cloud' ||
+    harness === 'claude-cloud'
   );
 }
 
@@ -78,6 +79,9 @@ export function agentRuntimeDescription(
   }
   if (persona.harness === 'codex-cloud')
     return 'Runs in your selected Codex cloud environment';
+  if (persona.harness === 'claude-cloud') {
+    return 'Runs in Claude’s cloud using your subscription. Demo: text prompts, no Macro connectors';
+  }
   if (persona.harness === 'macrod') {
     return `Do work locally using ${persona.name}${ownerName ? ` owned by ${ownerName}` : ''}`;
   }
@@ -98,6 +102,8 @@ export function harnessDisplayName(harness: string): string {
       return 'Cursor';
     case 'codex-cloud':
       return 'Codex';
+    case 'claude-cloud':
+      return 'Claude Cloud';
     default:
       return harness;
   }

apps/web/src/features/block-agent/context/AgentSessionContext.tsx

@@ -225,7 +225,7 @@ export function AgentSessionProvider(
 }
 
 /**
- * Compensating read for a Cursor session whose provider url arrived after
+ * Compensating read for a cloud session whose provider URL arrived after
  * the feed's snapshot. Lives in its own Suspense so the rest of the block
  * stays mounted while this query's first fetch is in flight.
  */
@@ -234,13 +234,15 @@ function CloudExternalUrlPoll(props: {
   session: Accessor<AgentSessionResponse | undefined>;
   applySnapshot: (session: AgentSessionResponse) => void;
 }) {
-  // Only a loaded Cursor session whose provider url is still missing polls;
+  // Only a loaded cloud session whose provider URL is still missing polls;
   // everything else passes `undefined`, which disables the query.
   const query = useAgentSessionExternalUrlQuery(() => {
     const id = props.sessionId();
     const session = props.session();
     if (!id || !session || session.external?.url) return undefined;
-    return isCursorBotId(session.botId) || isCodexBotId(session.botId)
+    return isCursorBotId(session.botId) ||
+      isCodexBotId(session.botId) ||
+      session.harness === 'claude-cloud'
       ? id
       : undefined;
   });

apps/web/src/features/claude-connection/claude-connection.tsx

@@ -0,0 +1,41 @@
+import { useUserId } from '@core/context/user';
+import { useClaudeConnectionSource } from '@queries/claude-auth/connection';
+import { Suspense } from 'solid-js';
+import { ConnectionCard } from './components/connection-card';
+import { openClaudeSignIn } from './open-sign-in';
+import { createClaudeConnection } from './primitives/connection';
+
+function ConnectedCard() {
+  const connection = createClaudeConnection(
+    useClaudeConnectionSource(useUserId()),
+    openClaudeSignIn
+  );
+  return (
+    <ConnectionCard
+      status={connection.status()}
+      failed={connection.failed()}
+      login={connection.login()}
+      code={connection.code()}
+      busy={connection.busy()}
+      error={connection.error()}
+      onCode={connection.setCode}
+      onBegin={() => void connection.begin()}
+      onComplete={() => void connection.complete()}
+      onDisconnect={() => void connection.disconnect()}
+      onRefresh={() => void connection.refresh()}
+    />
+  );
+}
+
+/** Production composition, isolated from the parent Settings suspense boundary. */
+export function ClaudeConnection() {
+  return (
+    <Suspense
+      fallback={
+        <p class="text-sm text-ink-muted">Loading Claude connection…</p>
+      }
+    >
+      <ConnectedCard />
+    </Suspense>
+  );
+}