\n \n Interrupted\n \n {canRetry && (\n Generation was cut short — retry to continue.\n )}\n {/* An interrupted message with empty or tool-only content never renders a TextBlock\n (its footer is where the retry button normally lives) — this is the only retry\n control such a message gets. Gated on !hasNonEmptyTextBlock so a message that DID\n stream real text before dying doesn't show this button twice. */}\n {canRetry && !hasNonEmptyTextBlock && (\n \n \n \n )}\n

\n )}\n \n\n {onDelete && (\n \n \n Interrupted\n \n {canRetry && (\n Cut short — retry to continue.\n )}\n {/* CompactTextBlock is the only other place a retry button lives, and it only\n renders for non-empty content — this is the sole retry control for an\n empty/tool-only interrupted message. Gated on !hasNonEmptyTextBlock so a message\n that DID stream real text doesn't show the button twice. */}\n {canRetry && !hasNonEmptyTextBlock && (\n \n \n \n )}\n \n )}\n \n\n {onDelete && (\n 0) {\n // `reconcile` mixes two DIFFERENT kinds of row, and they must be handled differently —\n // conflating them is exactly the race that used to silently clobber fresher content with a\n // staler one:\n //\n // - PROVABLY DEAD (heartbeat stale): the owning process is gone. Nothing else will EVER\n // write this row's terminal message, so it is materialized here — this is the only\n // chance the content has.\n // - JUST ABORTED BY US, THIS REQUEST (`aborted.has(id)`, heartbeat still fresh): the\n // owning generation is THIS SAME PROCESS, moments from running its own onFinish, which\n // persists the full, correct content as `status: 'interrupted'` via the normal\n // execute-end/onFinish path (message-utils.ts). Materializing here too would race that\n // natural write with an OLDER checkpoint snapshot and could overwrite it — the exact\n // silent-content-loss bug this module exists to prevent, just introduced by this PR\n // instead of fixed by it. So these rows get ONLY the cheap, ephemeral session-row wipe\n // (today's pre-existing behavior); the durable message is left to its own generation.\n const rowById = new Map(rows.map((r) => [r.messageId, r]));\n const provablyDead = reconcile.filter((id) => {\n const row = rowById.get(id);\n return row !== undefined && isProvablyDead(row, now);\n });\n const justAbortedStillAlive = reconcile.filter((id) => !provablyDead.includes(id));\n\n // `materializeInterruptedStream` never throws (it catches and logs its own DB failures per\n // step) and returns whether it actually succeeded — a batch of independent rows can run\n // concurrently without one row's failure taking out the others, but the RESULT must still\n // be checked per-row: `Promise.all` resolving tells you nothing about which calls actually\n // landed, and reporting every id as reconciled regardless would be exactly the misreporting\n // bug this module's own docblock warns against.\n const materializedIds = (await Promise.all(provablyDead.map(async (messageId) => {\n const row = rowById.get(messageId);\n if (!row) return null;\n const ok = await materializeInterruptedStream({\n messageId,\n channelId,\n conversationId,\n userId: row.userId,\n","/bin/bash -lc \"sed -n '1,260p' apps/web/src/lib/ai/core/materialize-interrupted-stream.ts && printf '\\\\n--- renderer ---\\\\n' && sed -n '430,465p' apps/web/src/components/ai/shared/chat/MessageRenderer.tsx && printf '\\\\n--- compact ---\\\\n' && sed -n '430,465p' apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx && printf '\\\\n--- takeover relevant ---\\\\n' && sed -n '115,165p' apps/web/src/lib/ai/core/stream-takeover.ts\"",[663,664,665,666],"6863",{"_434":674,"_189":453,"_164":454,"_92":451},{"_434":671,"_189":672,"_164":673,"_92":451},{"_434":668,"_189":669,"_164":670,"_92":451},{"_434":667,"_189":644,"_164":645,"_92":451},"sed -n '115,165p' apps/web/src/lib/ai/core/stream-takeover.ts","sed -n '430,465p' apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx","CompactMessageRenderer.tsx","/workspace/PageSpace/apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx","sed -n '430,465p' apps/web/src/components/ai/shared/chat/MessageRenderer.tsx","MessageRenderer.tsx","/workspace/PageSpace/apps/web/src/components/ai/shared/chat/MessageRenderer.tsx","sed -n '1,260p' apps/web/src/lib/ai/core/materialize-interrupted-stream.ts",{"_399":676,"_378":379,"_401":385},{"_457":677,"_423":653,"_42":678,"_406":679,"_189":461,"_462":-5,"_92":463},"{\"cmd\":\"sed -n '1,260p' apps/web/src/lib/ai/core/materialize-interrupted-stream.ts && printf '\\\\n--- renderer ---\\\\n' && sed -n '430,465p' apps/web/src/components/ai/shared/chat/MessageRenderer.tsx && printf '\\\\n--- compact ---\\\\n' && sed -n '430,465p' apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx && printf '\\\\n--- takeover relevant ---\\\\n' && sed -n '115,165p' apps/web/src/lib/ai/core/stream-takeover.ts\",\"workdir\":\"/workspace/PageSpace\",\"max_output_tokens\":30000}","fc_0a787438d558c81d016a5756b332d08196b706703edca92945",{"_411":385},{"_399":681,"_378":379,"_401":385},{"_402":-5,"_466":682,"_42":683,"_406":684,"_470":685,"_92":472},"gAAAAABqV1azlecC0Yq6RR_2RPzJ4h5uuDDhO7AfDtIVP-ZcflT9OcZGcPdNdGn4eWtBz-2h5p7jfaWR7aaQkeV_QjT1hKn_AgLmL6XIWl3Zj8XWzaTtB5MBUFWBFF5yJ1C6zNZV04CLgK-iG82YJSX4cDJdugUrb2A34uiB7rzKSFVwoK9B1wi1D58Mj6CGN_ngOPbLeFC0qkZIIJqFWJdCPagLVTIxE2lC_Jhzduc7Wvd4j6fbvoAfW_T5XODS3o45xVpi5MLpv0IAUNpFG0p-oLRu88SJRsZI9XqF_OJdFIENZObBrTIqCK8KxyeDlHjCOAeTKyFV7F2VzwceQJqh58gQW3dg--fmkFORFnCwOzhEBxtBwbzahhpPJbuJCdDgFCwMEEfkHcOUyl__AdVRvEmAQO-xFC0eQ7sk8h5xNLlA2gBfZg5MBH9fziXVjg5nC6-GyOouymsikNd5FcEIpEXUuJpLw-MB_knxVaea6figCCm255I4jAucerYoCliFl9vPtCibWyDa0R6jBSlNqvu5dRdkddV493hE-URTn6YtP-GvKisXbaUwMi1plU4O8qog5bgjzN_5dgcB2p35oXLIjHnBJmHoIvr8D1p4SEMgHbakeDHxq2GdWcLrhxTf06yAQ0csR3HZRk8fMuL30B_Nl_fCsO1hifX9HHoODnzjkWoas9YTIjVVonrU39ysAqVFU9CPu_HV5ARmZXSj26guLj7MK0umRSYq3ArovJzX2f4swfKTg-GT79rgFCkjRD-rzHnPmXVmMuF1hh-oevIn9hQeeUWGYLo-RxwZ96AQ7wCzLerX8TtUVw4nZvWY11lBDgc3KmBD_2FytOUf8WTcaIukJqxei0CAxloDBznsZJHxoi8GZ_7f6yiLKGV6RZW-E2r7XpYYaWxEf6fdJOI-qiJWAUTbC7H6GTw36sQB5Ygxy8V6eX2X4NmouMXA78doFo40JQO4hKql1pFsIIN6Fz3sUwIfuwcD9E9ez1Fb2SShK10Tv7jtA6WmVJEhUo87XJEZiiL2HODtesHIlMdQhpV0iGLs6vH9jLYOeQ9dMYFxGvokJ3-uFb2PpTdeODd24UaO-XcE52R0KN589HV0QZLJo8GRmY2cxaB3Fs8rkGhxX26MzDvkdoixrviWwu-WDy22YVDD34nxGC1xRZ0kEP8UIT47bEnA_VaO-sw4SYdPx6rw2KoIXEkcy0LJy-3LLbA2teIxIXVuWs4TR8QAaF1Q26PAWO6whE2oMv28dVqOrSUoVdXi-YvXHV0svUVr5dpm4-v5YROsmOc81lNodofWsynzDRJ9DvotpoqSpSwz9tsXAlkI0kLx5Sj-hU5--JfJxx8nG2CezjMdl8Le56vvERmY0BUNVVXRrujsPvMoD6EyHU4zuBHibOukL2Bt00JT-Nhc1CW0mXFrQqsm6tKd9oYisJ1ylQAaJjPrbNy_2sGro33l3oJ9PzMteHTBO2BxtJtWLBjn9b9IFArNZC_9BvbJ46DbDfzrRPudsRqs2YLRTRIuu24wNr3KqkJzl3tNXMDCh9QiFaeBgqQEB5NQwWfenyS5AF55uFNZYn6RiBwxpaGBGoeGVWnv40Oyb-WNQzZrqy4SKKX3er8ORFGdVEE0DK_j0Ar2MoGE9j2C03XE444cNY8f44v2JfZn9d69s1vJRsoXeA4igdAaAvvQvSF1LZuqJafXPYoXSvRhTg1X9vhGIyi9swbH66g20763PMaGuB-Qu_wM3fMcKlifPvZiuXXZi1A63UebyROSSWnQydvFbkdStxPuDeep4D6Wk1ClJUP8a8JAeo347691YMr-8Vk4AqLrgWDGal7r85-_hKbLU6VB3AfwggrY33cOuUhnYJ15OFkLR3-YUKRKqrDD97yEvhHQMsOhCNRULjAl37WixQOnuzR5PaEh6gHM-vuj3X-vdXOMCiQT-gLiQZA6K_xvPDqm9fqSI2FcVjIUVzupj38laIKLT-XHecUxjcRUay9zizLME8WmyBS9d9Yj5frYwSKu87xdo-3IrOe9LXPwaKqG84jAGUytaarh2iXjGLNLroAUjhdBFeb5ZBN2Tp22IUDsoudmbeqKSjcPJl--c0n62jaUIDlk9KlMKg9NNRiTMtSHIXgjjhvdEHG7A4G-lVWZ-TaZjBOYaP7v7C-W5oyRxGAU0USdKyIO-i9K-APnPjS7syw9Ah8JE4h4GcaAySA89qYbCswjiSirTHDpyvwNJcocu_-_koi8Wg2-r-aSv2ARmBUVFZVa8-8SXNOd2rS7Vj9h_7U5biI=","rs_0a787438d558c81d016a5756ae76988196811fe0824b9013ce",{"_411":385},[686,687],{"_46":689,"_92":476},{"_46":688,"_92":476},"**Determining necessity of PR creation**","**Verifying feedback resolution and changes**",{"_417":691,"_399":692,"_378":379,"_401":385},1784108723211,{"_402":693,"_42":683,"_470":694,"_92":472},[],[689,688],{"_399":696,"_378":379,"_401":385},{"_423":697,"_42":-5,"_406":698,"_426":699,"_92":428},"call_X8gjbbEBCcP8Pu9uRb1Fmcht",{"_411":385},"Chunk ID: 56d319\nWall time: 0.0006 seconds\nProcess exited with code 0\nOriginal token count: 2282\nOutput:\n# PageSpace Codebase Guidelines\n\n## 1. TECH STACK & ARCHITECTURE\n\n### 1.1. Core Technology Stack\n\n- **Full-Stack**: Next.js 15 App Router + TypeScript + Tailwind + shadcn/ui\n- **Database**: PostgreSQL + Drizzle ORM (local deployment via Docker)\n- **AI**: Ollama (local models) + Vercel AI SDK + OpenRouter + Google AI SDK\n- **Auth**: Passwordless — passkeys (WebAuthn) + magic links; opaque session tokens, SHA3-256 hashed at rest\n- **File Storage**: Local filesystem with metadata in PostgreSQL\n- **Real-time**: Socket.IO for live collaboration\n- **Deployment**: Docker containers on Mac Studio (local deployment)\n\n### 1.2. Monorepo Architecture\n\nThis project uses a bun workspace with the following structure:\n\n- `apps/web`: The main Next.js 15 frontend and backend application\n- `apps/realtime`: A dedicated Socket.IO service for real-time communication\n- `apps/processor`: Express-based file/OCR processing pipeline\n- `packages/db`: The centralized Drizzle ORM package containing database schema, migrations, and query logic\n- `packages/lib`: Shared utilities, types, and functions used across the monorepo\n- `types/`: Global TypeScript types\n- `scripts/`: Helper scripts\n\n**Database Schema**: Entry point at `packages/db/src/schema.ts`; migrations emit to `packages/db/drizzle/`.\n\n### 1.3. Key Dependencies\n\n**Frontend & UI:**\n- Next.js 15.3.5 with App Router\n- React ^19.0.0 + TypeScript ^5.8.3\n- Tailwind CSS ^4 + shadcn/ui components\n- TipTap rich text editor with markdown support\n- Monaco Editor for code editing\n- @dnd-kit for drag-and-drop functionality\n\n**Backend & Database:**\n- Drizzle ORM ^0.32.2 with PostgreSQL\n- Passwordless auth: `@simplewebauthn/server` for passkeys, magic-link tokens, opaque session tokens (SHA3-256 hashed at rest)\n\n**AI & Real-time:**\n- Vercel AI SDK ^4.3.17\n- Ollama AI provider ^1.2.0 for local models\n- @ai-sdk/google ^1.2.22, @ai-sdk/anthropic ^1.2.12, @ai-sdk/openai ^1.3.23\n- @openrouter/ai-sdk-provider 0.7.2 for cloud models\n- Socket.IO ^4.7.5 for real-time collaboration\n\n**State Management:**\n- Zustand for client state\n- SWR for server state and caching\n\n## 2. NEXT.JS 15 ROUTE HANDLER REQUIREMENTS\n\n### 2.1. Breaking Change: Dynamic Route params are Promises\n\n**CRITICAL**: In Next.js 15, `params` in dynamic routes are Promise objects. You MUST await `context.params` before destructuring.\n\n```typescript\n// ✅ CORRECT Pattern\nexport async function GET(\n request: Request,\n context: { params: Promise<{ id: string }> }\n) {\n const { id } = await context.params; // Must await params\n return Response.json({ id });\n}\n\n// ❌ INCORRECT Pattern\nexport async function GET(\n request: Request,\n { params }: { params: { id: string } } // WRONG: params is a Promise\n) {\n // This will fail in Next.js 15\n}\n```\n\n### 2.2. Request Handling Standards\n\n- **Get Request Body**: `const body = await request.json();`\n- **Get Search Params**: `const { searchParams } = new URL(request.url);`\n- **Return JSON**: `return Response.json(data)` or `return NextResponse.json(data)`\n\n## 3. DEVELOPMENT STANDARDS\n\n### 3.1. Code Quality Principles\n\n- **No `any` types** - Always use proper TypeScript types\n- **Explicit over implicit** - Clear, self-documenting code\n- **Right-first approach** - Build the ideal solution from the start\n- **Consistent patterns** - Follow established conventions\n\n### 3.2. Coding Style & Naming Conventions\n\n- TypeScript strict mode; ESM modules\n- **Filenames**: kebab-case (`image-processor.ts`), with exceptions:\n - React hooks: camelCase matching export (`useAuth.ts`)\n - Zustand stores: camelCase with `use` prefix (`useAuthStore.ts`)\n - React components: PascalCase (`UserProfile.tsx`)\n- **Variables/functions**: camelCase\n- **Constants**: UPPER_SNAKE_CASE\n- **Types/enums**: PascalCase\n- Format with Prettier; lint with Next/ESLint (`apps/web/eslint.config.mjs`)\n- Keep diffs minimal and focused\n\n### 3.3. Critical Patterns\n\n**Message Content Structure:**\n```typescript\n// ✅ CORRECT - Always use message parts structure\nconst message = {\n parts: [\n { type: 'text', text: \"Hello world\" }\n ]\n};\n```\n\n**Permission Logic:**\n```typescript\n// ✅ CORRECT - Use centralized permissions\nimport { getUserAccessLevel, canUserEditPage } from '@pagespace/lib/permissions/permissions';\nconst accessLevel = await getUserAccessLevel(userId, pageId);\n```\n\n**Database Access:**\n```typescript\n// ✅ CORRECT - Always use Drizzle subpath imports\nimport { db } from '@pagespace/db/db';\nimport { pages } from '@pagespace/db/schema/core';\nconst page = await db.select().from(pages);\n```\n\n## 4. BUILD, TEST, AND DEVELOPMENT COMMANDS\n\n### 4.1. Development Commands\n\n```bash\n# Install dependencies\nbun install\n\n# Environment setup\ncp .env.example .env\n# Also: apps/web/.env.example → apps/web/.env if needed\n\n# Database (local)\nbun run dev:db # Starts Postgres + runs migrations\ndocker compose up -d # Alternative\n\n# Develop all apps\nbun run dev # Runs Turbo dev across packages\n\n# Focus a single app\nbun run --filter 'web' dev\nbun run --filter 'realtime' dev\nbun run --filter '@pagespace/processor' dev\n\n# Build and quality checks\nbun run build # Build all apps\nbun run typecheck # TypeScript checks\nbun run lint # ESLint\nbun run --filter 'web' build # Build web app only\nbun run --filter 'web' lint # Lint web app only\n\n# Database tasks\nbun run db:generate # Create migrations\nbun run db:migrate # Apply migrations\nbun run --filter '@pagespace/db' db:studio # Browse schema\n```\n\n### 4.2. Testing Guidelines\n\n- No global test runner is enforced yet. When adding tests:\n - Prefer unit tests for `packages/lib`/`apps/processor` (`*.test.ts` next to source or in `__tests__/`)\n - Add a `test` script in the target package and run with `bun run --filter '' test`\n - Use `bun run typecheck` and `bun run lint` as gates before PRs\n\n## 5. PAGESPACE DOMAIN EXPERT AGENTS\n\nPageSpace has 17 specialized domain expert agents with deep knowledge of specific subsystems.\n\n### 5.1. Core Infrastructure (5 agents)\n\n- **Authentication & Security Expert**: passkey/magic-link auth, opaque session tokens, CSRF protection, encryption, rate limiting, session management\n- **Database & Schema Expert**: Drizzle ORM, PostgreSQL, migrations, schema design, query optimization\n- **Permissions & Authorization Expert**: RBAC, drive membership, page permissions, access control logic\n- **Real-time Collaboration Expert**: Socket.IO, live sync, conflict resolution, event broadcasting\n- **Monitoring & Analytics Expert**: Logging, tracking, performance metrics, error handling, usage analytics\n\n### 5.2. AI Intelligence (3 agents)\n\n- **AI System Architect**: AI providers, message flow, streaming, model capabilities, provider factory\n- **AI Tools Integration Expert**: Tool calling, PageSpace tools, batch operations, search tools\n- **AI Agents Communication Expert**: Agent roles, agent-to-agent communication, custom agents\n\n### 5.3. Content & Workspace (4 agents)\n\n- **Pages & Content Expert**: Page types, content management, CRUD operations, tree structure\n- **Drives & Workspace Expert**: Drive management, membership, invitations, workspace organization\n- **File Processing Expert**: File uploads, processor service, image optimization, content-addressed storage\n- **Search & Discovery Expert**: Regex search, glob patterns, multi-drive search, mention system\n\n### 5.4. Frontend & UX (3 agents)\n\n- **Frontend Architecture Expert**: Next.js 15, App Router, components, state management, Zustand, SWR\n- **Editor System Expert**: Tiptap, Monaco, document state, auto-save, Prettier integration\n- **Canvas Dashboard Expert**: Shadow DOM, custom HTML/CSS, navigation, security sanitization\n\n### 5.5. API & Integration (2 agents)\n\n- **API Routes Expert**: Next.js routes, async params, request handling, error responses, middleware\n- **MCP Integration Expert**: MCP tokens, document operations, protocol integration, external tools\n\n## 6. COMMON WORKFLOWS\n\n### 6.1. Development Workflows\n\n1. **Adding new API routes**: Follow Next.js 15 async params pattern (see Section 2.1)\n2. **Database changes**: Update schema in `packages/db`, generate migrations with `bun run db:generate`\n3. **New components**: Follow existing patterns in `components/` directory\n4. **Permission changes**: Update centralized logic in `@pagespace/lib/permissions/permissions`\n\n### 6.2. Commit & Pull Request Guidelines\n\n- **Commits**: short, imperative subject (≤72 chars), optional scope like `[web]`, `[processor]`\n- **PRs**: clear description, linked issues, screenshots for UI, note DB migrations and any `.env` or config changes. Include reproduction/verification steps.\n- **Before opening**: run `bun run build`, `bun run typecheck`, and relevant `db:*` tasks\n- **Documentation**: When changes land, update the changelog and any user-visible notes\n\n## 7. SECURITY & CONFIGURATION\n\n- Never commit secrets. Base config in `.env.example`; runtime in `.env`\n- Important vars: `DATABASE_URL`, encryption keys, `WEB_APP_URL`, `NEXT_PUBLIC_*`, service ports\n- For self‑host, see `docker-compose.yml`\n",{"_417":701,"_399":702,"_378":379,"_401":385},1784108717530,{"_432":703,"_434":704,"_436":705,"_438":439,"_383":32,"_440":32,"_42":697,"_441":706,"_443":444,"_392":113,"_92":445},"# PageSpace Codebase Guidelines\n\n## 1. TECH STACK & ARCHITECTURE\n\n### 1.1. Core Technology Stack\n\n- **Full-Stack**: Next.js 15 App Router + TypeScript + Tailwind + shadcn/ui\n- **Database**: PostgreSQL + Drizzle ORM (local deployment via Docker)\n- **AI**: Ollama (local models) + Vercel AI SDK + OpenRouter + Google AI SDK\n- **Auth**: Passwordless — passkeys (WebAuthn) + magic links; opaque session tokens, SHA3-256 hashed at rest\n- **File Storage**: Local filesystem with metadata in PostgreSQL\n- **Real-time**: Socket.IO for live collaboration\n- **Deployment**: Docker containers on Mac Studio (local deployment)\n\n### 1.2. Monorepo Architecture\n\nThis project uses a bun workspace with the following structure:\n\n- `apps/web`: The main Next.js 15 frontend and backend application\n- `apps/realtime`: A dedicated Socket.IO service for real-time communication\n- `apps/processor`: Express-based file/OCR processing pipeline\n- `packages/db`: The centralized Drizzle ORM package containing database schema, migrations, and query logic\n- `packages/lib`: Shared utilities, types, and functions used across the monorepo\n- `types/`: Global TypeScript types\n- `scripts/`: Helper scripts\n\n**Database Schema**: Entry point at `packages/db/src/schema.ts`; migrations emit to `packages/db/drizzle/`.\n\n### 1.3. Key Dependencies\n\n**Frontend & UI:**\n- Next.js 15.3.5 with App Router\n- React ^19.0.0 + TypeScript ^5.8.3\n- Tailwind CSS ^4 + shadcn/ui components\n- TipTap rich text editor with markdown support\n- Monaco Editor for code editing\n- @dnd-kit for drag-and-drop functionality\n\n**Backend & Database:**\n- Drizzle ORM ^0.32.2 with PostgreSQL\n- Passwordless auth: `@simplewebauthn/server` for passkeys, magic-link tokens, opaque session tokens (SHA3-256 hashed at rest)\n\n**AI & Real-time:**\n- Vercel AI SDK ^4.3.17\n- Ollama AI provider ^1.2.0 for local models\n- @ai-sdk/google ^1.2.22, @ai-sdk/anthropic ^1.2.12, @ai-sdk/openai ^1.3.23\n- @openrouter/ai-sdk-provider 0.7.2 for cloud models\n- Socket.IO ^4.7.5 for real-time collaboration\n\n**State Management:**\n- Zustand for client state\n- SWR for server state and caching\n\n## 2. NEXT.JS 15 ROUTE HANDLER REQUIREMENTS\n\n### 2.1. Breaking Change: Dynamic Route params are Promises\n\n**CRITICAL**: In Next.js 15, `params` in dynamic routes are Promise objects. You MUST await `context.params` before destructuring.\n\n```typescript\n// ✅ CORRECT Pattern\nexport async function GET(\n request: Request,\n context: { params: Promise<{ id: string }> }\n) {\n const { id } = await context.params; // Must await params\n return Response.json({ id });\n}\n\n// ❌ INCORRECT Pattern\nexport async function GET(\n request: Request,\n { params }: { params: { id: string } } // WRONG: params is a Promise\n) {\n // This will fail in Next.js 15\n}\n```\n\n### 2.2. Request Handling Standards\n\n- **Get Request Body**: `const body = await request.json();`\n- **Get Search Params**: `const { searchParams } = new URL(request.url);`\n- **Return JSON**: `return Response.json(data)` or `return NextResponse.json(data)`\n\n## 3. DEVELOPMENT STANDARDS\n\n### 3.1. Code Quality Principles\n\n- **No `any` types** - Always use proper TypeScript types\n- **Explicit over implicit** - Clear, self-documenting code\n- **Right-first approach** - Build the ideal solution from the start\n- **Consistent patterns** - Follow established conventions\n\n### 3.2. Coding Style & Naming Conventions\n\n- TypeScript strict mode; ESM modules\n- **Filenames**: kebab-case (`image-processor.ts`), with exceptions:\n - React hooks: camelCase matching export (`useAuth.ts`)\n - Zustand stores: camelCase with `use` prefix (`useAuthStore.ts`)\n - React components: PascalCase (`UserProfile.tsx`)\n- **Variables/functions**: camelCase\n- **Constants**: UPPER_SNAKE_CASE\n- **Types/enums**: PascalCase\n- Format with Prettier; lint with Next/ESLint (`apps/web/eslint.config.mjs`)\n- Keep diffs minimal and focused\n\n### 3.3. Critical Patterns\n\n**Message Content Structure:**\n```typescript\n// ✅ CORRECT - Always use message parts structure\nconst message = {\n parts: [\n { type: 'text', text: \"Hello world\" }\n ]\n};\n```\n\n**Permission Logic:**\n```typescript\n// ✅ CORRECT - Use centralized permissions\nimport { getUserAccessLevel, canUserEditPage } from '@pagespace/lib/permissions/permissions';\nconst accessLevel = await getUserAccessLevel(userId, pageId);\n```\n\n**Database Access:**\n```typescript\n// ✅ CORRECT - Always use Drizzle subpath imports\nimport { db } from '@pagespace/db/db';\nimport { pages } from '@pagespace/db/schema/core';\nconst page = await db.select().from(pages);\n```\n\n## 4. BUILD, TEST, AND DEVELOPMENT COMMANDS\n\n### 4.1. Development Commands\n\n```bash\n# Install dependencies\nbun install\n\n# Environment setup\ncp .env.example .env\n# Also: apps/web/.env.example → apps/web/.env if needed\n\n# Database (local)\nbun run dev:db # Starts Postgres + runs migrations\ndocker compose up -d # Alternative\n\n# Develop all apps\nbun run dev # Runs Turbo dev across packages\n\n# Focus a single app\nbun run --filter 'web' dev\nbun run --filter 'realtime' dev\nbun run --filter '@pagespace/processor' dev\n\n# Build and quality checks\nbun run build # Build all apps\nbun run typecheck # TypeScript checks\nbun run lint # ESLint\nbun run --filter 'web' build # Build web app only\nbun run --filter 'web' lint # Lint web app only\n\n# Database tasks\nbun run db:generate # Create migrations\nbun run db:migrate # Apply migrations\nbun run --filter '@pagespace/db' db:studio # Browse schema\n```\n\n### 4.2. Testing Guidelines\n\n- No global test runner is enforced yet. When adding tests:\n - Prefer unit tests for `packages/lib`/`apps/processor` (`*.test.ts` next to source or in `__tests__/`)\n - Add a `test` script in the target package and run with `bun run --filter '' test`\n - Use `bun run typecheck` and `bun run lint` as gates before PRs\n\n## 5. PAGESPACE DOMAIN EXPERT AGENTS\n\nPageSpace has 17 specialized domain expert agents with deep knowledge of specific subsystems.\n\n### 5.1. Core Infrastructure (5 agents)\n\n- **Authentication & Security Expert**: passkey/magic-link auth, opaque session tokens, CSRF protection, encryption, rate limiting, session management\n- **Database & Schema Expert**: Drizzle ORM, PostgreSQL, migrations, schema design, query optimization\n- **Permissions & Authorization Expert**: RBAC, drive membership, page permissions, access control logic\n- **Real-time Collaboration Expert**: Socket.IO, live sync, conflict resolution, event broadcasting\n- **Monitoring & Analytics Expert**: Logging, tracking, performance metrics, error handling, usage analytics\n\n### 5.2. AI Intelligence (3 agents)\n\n- **AI System Architect**: AI providers, message flow, streaming, model capabilities, provider factory\n- **AI Tools Integration Expert**: Tool calling, PageSpace tools, batch operations, search tools\n- **AI Agents Communication Expert**: Agent roles, agent-to-agent communication, custom agents\n\n### 5.3. Content & Workspace (4 agents)\n\n- **Pages & Content Expert**: Page types, content management, CRUD operations, tree structure\n- **Drives & Workspace Expert**: Drive management, membership, invitations, workspace organization\n- **File Processing Expert**: File uploads, processor service, image optimization, content-addressed storage\n- **Search & Discovery Expert**: Regex search, glob patterns, multi-drive search, mention system\n\n### 5.4. Frontend & UX (3 agents)\n\n- **Frontend Architecture Expert**: Next.js 15, App Router, components, state management, Zustand, SWR\n- **Editor System Expert**: Tiptap, Monaco, document state, auto-save, Prettier integration\n- **Canvas Dashboard Expert**: Shadow DOM, custom HTML/CSS, navigation, security sanitization\n\n### 5.5. API & Integration (2 agents)\n\n- **API Routes Expert**: Next.js routes, async params, request handling, error responses, middleware\n- **MCP Integration Expert**: MCP tokens, document operations, protocol integration, external tools\n\n## 6. COMMON WORKFLOWS\n\n### 6.1. Development Workflows\n\n1. **Adding new API routes**: Follow Next.js 15 async params pattern (see Section 2.1)\n2. **Database changes**: Update schema in `packages/db`, generate migrations with `bun run db:generate`\n3. **New components**: Follow existing patterns in `components/` directory\n4. **Permission changes**: Update centralized logic in `@pagespace/lib/permissions/permissions`\n\n### 6.2. Commit & Pull Request Guidelines\n\n- **Commits**: short, imperative subject (≤72 chars), optional scope like `[web]`, `[processor]`\n- **PRs**: clear description, linked issues, screenshots for UI, note DB migrations and any `.env` or config changes. Include reproduction/verification steps.\n- **Before opening**: run `bun run build`, `bun run typecheck`, and relevant `db:*` tasks\n- **Documentation**: When changes land, update the changelog and any user-visible notes\n\n## 7. SECURITY & CONFIGURATION\n\n- Never commit secrets. Base config in `.env.example`; runtime in `.env`\n- Important vars: `DATABASE_URL`, encryption keys, `WEB_APP_URL`, `NEXT_PUBLIC_*`, service ports\n- For self‑host, see `docker-compose.yml`\n","/bin/bash -lc 'cat AGENTS.md && git status --short'",[707],"98374",{"_434":708,"_92":499},"cat AGENTS.md && git status --short",{"_399":710,"_378":379,"_401":385},{"_457":711,"_423":697,"_42":712,"_406":713,"_189":461,"_462":-5,"_92":463},"{\"cmd\":\"cat AGENTS.md && git status --short\",\"workdir\":\"/workspace/PageSpace\",\"max_output_tokens\":20000}","fc_0a787438d558c81d016a5756acb5cc8196900f4837b65e1018",{"_411":385},{"_417":715,"_399":716,"_378":379,"_401":385},1784108715448,{"_432":717,"_434":718,"_436":719,"_438":439,"_383":720,"_440":32,"_42":721,"_441":722,"_443":444,"_392":113,"_92":445},"2f11e1f fix(ai): check rowCount, not just no-throw, for session-row settle success\n9b87730 fix(ai): report actual reconciliation success, not attempted eligibility\nfb8f334 fix(a11y): explicit aria-label on the message-level retry button\nc6e046b fix(ai): tighten #2022 guard to compare-and-swap, fix insert timestamp\n9ec3bc5 fix(test): CI failure — the \"exactly ONE retry button\" tests never supplied onEdit/onDelete\n","/bin/bash -lc \"pwd && rg --files -g 'AGENTS.md' -g '\"'!node_modules'\"' -g '\"'!dist'\"' -g '\"'!build'\"' && git status --short && git log --oneline -5\"",[723],124,"call_HKPDNlPYOAkDVprxRbR0mnsW","12219",{"_434":724,"_92":499},"pwd && rg --files -g 'AGENTS.md' -g '!node_modules' -g '!dist' -g '!build' && git status --short && git log --oneline -5",{"_399":726,"_378":379,"_401":385},{"_423":721,"_42":-5,"_406":727,"_426":728,"_92":428},{"_411":385},"Chunk ID: 999888\nWall time: 0.0229 seconds\nProcess exited with code 0\nOriginal token count: 113\nOutput:\n/workspace/PageSpace\nAGENTS.md\n2f11e1f fix(ai): check rowCount, not just no-throw, for session-row settle success\n9b87730 fix(ai): report actual reconciliation success, not attempted eligibility\nfb8f334 fix(a11y): explicit aria-label on the message-level retry button\nc6e046b fix(ai): tighten #2022 guard to compare-and-swap, fix insert timestamp\n9ec3bc5 fix(test): CI failure — the \"exactly ONE retry button\" tests never supplied onEdit/onDelete\n",{"_399":730,"_378":379,"_401":385},{"_457":731,"_423":721,"_42":732,"_406":733,"_189":461,"_462":-5,"_92":463},"{\"cmd\": \"pwd && rg --files -g 'AGENTS.md' -g '!node_modules' -g '!dist' -g '!build' && git status --short && git log --oneline -5\", \"workdir\": \"/workspace/PageSpace\"}","fc_0a787438d558c81d016a5756aa69d08196a00e20f667b7e88a",{"_411":385},{"_399":735,"_378":379,"_401":385},{"_402":-5,"_466":736,"_42":737,"_406":738,"_470":739,"_92":472},"gAAAAABqV1aqNyFp-6cGWN76xFYt2DuImR5Ms2yzWBXameASY1_aCpEykq6lcHWJOYc0M8AM46mI7RarFgfh1ZHl348dVBQ1el5TZjm7y994zmcygpjxhI4V1jLDxnVCLVrEsX18Kqv8rRLQ1vidnjWjMLsxBpynuSTG4TZgGD4-0_NqBa8crivhvG2g-7paxQ_3stfl6Ya_4EDhcm23W7XVrUahpPnU0MpKamoJaM2sSO8nmBJPCJHM09UTDQxuYhbZIHE-6-2ZRy3tbwhM2psx09pK77FAtxDontDuLd00DF8qZHAyRJgujimdL3AX_CyNUbBpwjCLden9vBMpc2873SiQXqor9cHXgB3hr-xps9I2R8Az7nTDW-rC-Z0AAriRWSyXhI4GEu9yfueGuzhFmUAP2aGKs4IxbqXBmWG3zGU0oO6gjrFSWKY4gPypMvatz8PvX8XwBqmTiOaiyzHPyHxFtQ2VpO1Eg-s2ZKg_GS3q8UoqqgTkjikVQ2NoUdUqDsk8gZ7vDBY4W8xVUka2bM3PjW5kfB7USMtB6Le2PBwkBlViHjfK8xRk3KPzi9PMSBBQfYUCM_vqL_lH3-yJdIbk438uK5yyfGBQW9xgPLo41Gb9HZBCkREBvgZBzLG1YHXDA7mkNTqKJXB4fU_DVOQ3oWRqJSF8z97VXHSsfDZCaVFmB9NIhft6DsDr1KARMrCX5d3M6blPI9kpF2QgIUCXTTY16-_bRPJ0QbuSOXujeqA0mdu0hVCRgR2qTdV03Xmp3CfnnUeqOGP8aIgvtuoAInaLs0xMAQSG50Z7i70-DAJBgBjuKBqUc8dH-nfOhNYOPVhhsQwxmiJn7ewr-I-wYpGDw1Mv1SXvSWI6BrExZWM3FiZAVdQYeETQwTpBn6YOzgEiuPWYHOXx8NXSZ2VvpZgXhCyD7ML3tXNBSHDH42lLzRrrxfJMEiYhfjhYFZYd0_R8","rs_0a787438d558c81d016a5756a985448196a44cb7d89bd84c2e",{"_411":385},[740],{"_46":741,"_92":476},"**Inspecting repository structure**",{"_417":743,"_399":744,"_378":379,"_401":385},1784108714431,{"_402":745,"_42":737,"_470":746,"_92":472},[],[741],{"_417":748,"_399":749,"_378":379,"_401":385},1784108711321,{"_750":-5,"_402":751,"_42":752,"_92":753},"clientId",[754],"019f652a-7d96-7390-8da0-2adbfa04d07b","userMessage",{"_46":755,"_756":757,"_92":46},"\nYou are Codex, assisting with follow-up actions on a GitHub pull request.\n\nInput blocks\n------------\n… # The comment or event that invoked you\n… # PR metadata (title, branches, SHAs, status, etc.)\n… # Comments / Reviews for the PR\n\nPossible triggers\n• A user mentions you (@codex)\n• A reviewer requests changes\n• An automated or internal system asks you to review / update\n\nGuidelines\n1. Read the block first and treat it as the primary intent.\n2. Always consult and to interpret and validate the trigger; use only context that materially affects your decision and ignore the rest.\n3. If the trigger comes from a comment thread, the first block will be combined earlier comments from the same thread, clearly indicated with `Comments in the same thread`.\n4. Remaining blocks are in chronological order, oldest first, one block per comment.\n5. When the trigger relates to CI/build status (e.g., “help me fix CI”), incorporate CI/status details found in as supporting context.\n6. If code change is needed, generate a **new** PR with the requested changes. The PR title and message should summarize the changes **on top** of the original pull request.\n@codex address that feedback{\"title\":\"feat(ai): materialize interrupted streams on dead-row reap\",\"body\":\"## Summary\\nPR 3 of the \\\"Server Stream Durability & Rejoin\\\" epic — dependency (status column, PR #2076) merged, branch rebased onto current master.\\n\\n- `materializeInterruptedStream(row)` (`apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`): from a provably-dead `ai_stream_sessions` row, builds the message payload from its parts snapshot (reusing `buildAssistantPersistencePayload` + `extractStructuredContentFromParts`, the same pipeline execute-end/onFinish use — preserves file/data parts and ordering, not just flat text), upserts `chat_messages`/`messages` to `status: 'interrupted'` guarded by a **compare-and-swap** `setWhere: eq(status, 'streaming')` on the conflict clause (a row leaves `'streaming'` exactly once, so this can never re-touch an already-terminal row whether it landed at `'complete'` or `'interrupted'` by the normal path), re-syncs `conversationId` on conflict, uses the stream's real `startedAt` (not reap time) for the defensive insert-if-missing branch, then settles the session row terminal (checking actual `rowCount`, not just no-throw — a conditional UPDATE that matches zero rows because a concurrent reap already settled it does not throw) and broadcasts `stream_complete({aborted: true})`. Returns whether the row was genuinely driven terminal, never throws.\\n- Wired into all three reap paths named on the board: `stream-takeover.ts`'s reconcile set, `stream-abort-mark.ts`'s `reconcileDeadStreamRows`, and a new lazy sweep in `GET /api/ai/chat/active-streams`. **Critical fix during review:** the takeover's local reconcile set used to conflate \\\"provably dead\\\" (heartbeat stale — no generation will ever write this row again) with \\\"we just aborted it ourselves this request\\\" (still alive moments ago, about to run its own `onFinish`, which persists the full, correct content). Materializing the latter raced that natural write with an older debounced checkpoint and could silently overwrite fresher content with staler content. Now only provably-dead rows are materialized; just-aborted-but-alive rows get the original cheap session-row wipe and their own generation's `onFinish` persists the real content. Every reconcile/materialize call site now reports actual success (not attempted eligibility) up through `reconciled`/`remotelyReconciled`, and per-row reconciliation runs concurrently (`Promise.all`). The active-streams lazy sweep runs over the subscription-authorized row set, so a user with mere page-view access can't trigger a reap side effect for another member's private conversation.\\n- Client: `ConversationMessage.status` threads to `MessageRenderer` **and** `CompactMessageRenderer` (the actual sidebar/global-assistant surface), which render an \\\"Interrupted\\\" badge + a real retry **button** at the message level, independent of which part groups exist — including for a message with zero content, or one interrupted mid-tool-call with no trailing text — de-duplicated against `TextBlock`'s own retry button for messages with real text content.\\n- 100% branch coverage on the new module, gated via a per-glob vitest threshold per the epic's own constraints (\\\"materialize eligibility\\\").\\n- **Scope addition (reviewer-filed, discovery-protocol class 2):** added the 3 tests D.2 (epic board) flagged as claimed-tested-but-uncovered — `previewAiUndo`'s affected-message count query and both of `executeAiUndo`'s soft-delete updates now assert the `ne(status,'streaming')` guard is actually present, not just claimed.\\n\\nFiled two epic-level `D —` tasks for real-but-unscheduled gaps found during review (not blocking): mention-notifications not firing for a materialized interrupted reply, and a live-tab socket-immediacy gap for the badge.\\n\\nThis PR went through an unusually thorough convergence pass: an internal 8-angle review followed by four rounds of external bot review (CodeRabbit + Codex) that independently confirmed and added to the findings — content-fidelity loss, badge/retry-button coupling to text-block rendering, an authorization gap in the lazy sweep, the compare-and-swap guard, the insert-timestamp ordering, per-row reconciliation-accuracy reporting, and a rowCount check for the session-settle write. All fixed, tested, and CI-green.\\n\\nStaging kill-mid-stream drill procedure documented on the PR board page (`epuyvd3qh3u9rj04nzc2rs4m`) per leaf 3.5 — not run from this environment.\\n\\n## Test plan\\n- [x] `bun run typecheck` (Turbo build) — green\\n- [x] `bun vitest run` across `ai/core`, `ai/streams`, chat components, chat routes, and `ai-undo-service` — 108 files / 1338 tests passing (local, non-render)\\n- [x] `materialize-interrupted-stream.test.ts` (24 tests) at 100% branch/line/stmt/func coverage\\n- [x] `stream-takeover.test.ts` / `stream-abort-mark.test.ts` updated for the corrected eligibility split, concurrent per-row processing, startedAt threading, and accurate reconciliation reporting\\n- [x] `active-streams` lazy-sweep tests (dead row reaped, live row untouched, ambiguous-cap row untouched, unauthorized-conversation row NOT reaped)\\n- [x] `MessageRenderer.interrupted.test.tsx` + `CompactMessageRenderer.interrupted.test.tsx` (badge + retry button render independent of part-group shape, no duplicate button for text-bearing messages)\\n- [x] `ai-undo-service.test.ts` — 3 new D.2 tests, 23/23 passing\\n- [x] CI green: Unit Tests, Lint & TypeScript Check, CodeQL, Security Test Suite, Static Security Analysis, Secret Scanning, Dependency Audit, CodeRabbit (verified across 5 consecutive pushes)\\n- [ ] Staging kill-mid-stream drill (documented, not executed from this environment — see PR board page)\\n\\n🤖 Generated with [Claude Code](https://claude.com/claude-code)\\n\\nhttps://claude.ai/code/session_013c3xvumpqg33Ss6AKAP7XB\",\"base_ref\":\"117d33d577fd80c760fb69aa66f4a7f481ee276e\",\"head_ref\":\"2f11e1f20e501667e0d2cd5a2e4e8184ceba036a\",\"merge_commit_sha\":null,\"type\":\"pull_request_info\"}{\"type\":\"pull_request_comment\",\"body\":\"\\n\\n\\n[![Review Change Stack](https://storage.googleapis.com/coderabbit_public_assets/review-stack-in-coderabbit-ui.svg)](https://app.coderabbit.ai/change-stack/2witstudios/PageSpace/pull/2077?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)\\n\\n\\n\\n\\n

\\n

📝 Walkthrough

\\n\\n## Walkthrough\\n\\nThe change materializes provably dead AI streams as interrupted assistant messages, reconciles them across active-stream, abort, and takeover paths, renders interruption and retry affordances, and prevents undo operations from modifying in-flight streaming rows.\\n\\n### Changes\\n\\n**Interrupted stream lifecycle**\\n\\n|Layer / File(s)|Summary|\\n|---|---|\\n|**Interrupted message materialization**
`apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`, `apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts`, `apps/web/vitest.config.ts`|Adds resilient page/global message upserts from buffered parts, protects completed rows, settles streaming sessions, broadcasts aborted completion, and enforces full coverage for the new module.|\\n|**Abort and takeover reconciliation**
`apps/web/src/lib/ai/core/stream-abort-mark.ts`, `apps/web/src/lib/ai/core/stream-takeover.ts`, `apps/web/src/lib/ai/core/stream-liveness.ts`, `apps/web/src/lib/ai/core/__tests__/stream-abort-mark.test.ts`, `apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts`|Replaces direct bulk session abortion for provably dead rows with per-row materialization using each row’s parts snapshot, while retaining separate handling for fresh or live rows.|\\n|**Active-stream lazy sweep**
`apps/web/src/app/api/ai/chat/active-streams/route.ts`, `apps/web/src/app/api/ai/chat/active-streams/__tests__/route.test.ts`|Authorizes rows before response filtering and asynchronously materializes authorized rows that are not live and are provably dead.|\\n|**Interrupted assistant rendering**
`apps/web/src/components/ai/shared/chat/message-types.ts`, `apps/web/src/components/ai/shared/chat/MessageRenderer.tsx`, `apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx`, `apps/web/src/components/ai/shared/chat/__tests__/*Interrupted.test.tsx`|Adds the interrupted message status and renders interruption badges, optional retry guidance, and retry controls without duplicating controls when text content already exists.|\\n|**Streaming-row undo protection**
`apps/web/src/services/api/__tests__/ai-undo-service.test.ts`|Adds contract coverage confirming preview and soft-delete undo predicates exclude rows with streaming status.|\\n\\n**Estimated code review effort:** 4 (Complex) | ~45 minutes\\n\\n### Sequence Diagram(s)\\n\\n```mermaid\\nsequenceDiagram\\n participant ActiveStreamsRoute\\n participant StreamLiveness\\n participant Materializer\\n participant MessageStore\\n participant SessionStore\\n participant ChatRenderer\\n ActiveStreamsRoute->>StreamLiveness: evaluate authorized streaming rows\\n StreamLiveness->>Materializer: materialize provably dead rows\\n Materializer->>MessageStore: upsert interrupted assistant message\\n Materializer->>SessionStore: settle session as aborted\\n MessageStore-->>ChatRenderer: provide interrupted message status\\n ChatRenderer-->>ChatRenderer: render interruption and retry affordance\\n```\\n\\n**Possibly related PRs**\\n\\n- [2witstudios/PageSpace#2022](https://github.com/2witstudios/PageSpace/pull/2022): Introduced the cross-instance dead-row reconciliation path rewired here to materialize interrupted messages.\\n- [2witstudios/PageSpace#2018](https://github.com/2witstudios/PageSpace/pull/2018): Shares the heartbeat-driven active-stream and liveness paths updated here.\\n- [2witstudios/PageSpace#2011](https://github.com/2witstudios/PageSpace/pull/2011): Shares the stream takeover and liveness filtering logic extended with lazy materialization.\\n\\n

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🚥 Pre-merge checks | ✅ 4 | ❌ 1

\\n\\n### ❌ Failed checks (1 warning)\\n\\n| Check name | Status | Explanation | Resolution |\\n| :----------------: | :--------- | :----------------------------------------------------------------------------------- | :--------------------------------------------------------------------------------- |\\n| Docstring Coverage | ⚠️ Warning | Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. | Write docstrings for the functions missing them to satisfy the coverage threshold. |\\n\\n

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✅ Passed checks (4 passed)

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\\n\\n\\n\\n\\n

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✨ Finishing Touches

\\n\\n

\\n

📝 Generate docstrings

\\n\\n- [ ] Create stacked PR\\n- [ ] Commit on current branch\\n\\n

\\n

🧪 Generate unit tests (beta)

\\n\\n- [ ] Create PR with unit tests\\n- [ ] Commit unit tests in branch `pu/e2-interrupted`\\n\\n

\\n\\n

\\n\\n\\n\\n\\n---\\n\\nThanks for using [CodeRabbit](https://coderabbit.ai?utm_source=oss&utm_medium=github&utm_campaign=2witstudios/PageSpace&utm_content=2077)! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.\\n\\n

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\\n\\n\\n_{Comment `@coderabbitai help` to get the list of available commands.}\\n\\n\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Preserve structured parts when materializing streams**\\n\\nWhen a dead stream snapshot contains tool/data/file parts, persisting only `payload.content` here (and in the global branch above) drops the structured content envelope that `convertDbMessageToUIMessage` relies on to reconstruct non-text parts; the stored `toolCalls`/`toolResults` JSON is ignored on the plain-text fallback path, so interrupted transcripts lose tool calls/results and later model context sees only text. Use the same structured-content persistence path as `saveMessageToDatabase`/`saveGlobalAssistantMessageToDatabase` while keeping the `status != complete` guard.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"apps/web/src/lib/ai/core/materialize-interrupted-stream.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Show interrupted status when tools follow text**\\n\\nFor an interrupted assistant message whose final rendered group is a tool/file/command group (for example, the run is aborted after a tool result and before final prose), the preceding text block gets `isInterrupted={false}` because it is not the last group, and none of the non-text renderers display the badge. That makes `status: 'interrupted'` render like a normal completion in common tool-using aborts; compute the last text-group index or render a message-level interrupted footer instead.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"apps/web/src/components/ai/shared/chat/MessageRenderer.tsx\",\"side\":\"RIGHT\",\"line\":385}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `06e95f351a`\\n \\n\\n

ℹ️ About Codex in GitHub

\\n
\\n\\n[Your team has set up Codex to review pull requests in this repo](https://chatgpt.com/codex/cloud/settings/general). Reviews are triggered when you\\n- Open a pull request for review\\n- Mark a draft as ready\\n- Comment \\\"@codex review\\\".\\n\\nIf Codex has suggestions, it will comment; otherwise it will react with 👍.\\n\\n\\n\\n\\nCodex can also answer questions or update the PR. Try commenting \\\"@codex address that feedback\\\".\\n \\n

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"_🩺 Stability & Availability_ | _🔴 Critical_ | _⚡ Quick win_\\n\\n

\\n

🧩 Analysis chain

\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\nprintf '\\\\n== file outline ==\\\\n'\\nast-grep outline apps/web/src/lib/ai/core/materialize-interrupted-stream.ts --view expanded || true\\n\\nprintf '\\\\n== relevant file excerpt ==\\\\n'\\nsed -n '1,220p' apps/web/src/lib/ai/core/materialize-interrupted-stream.ts | cat -n\\n\\nprintf '\\\\n== caller search ==\\\\n'\\nrg -n \\\"materializeInterruptedStream\\\\(\\\" apps/web/src | sed -n '1,120p'\\n\\nprintf '\\\\n== buildAssistantPersistencePayload definition search ==\\\\n'\\nrg -n \\\"function buildAssistantPersistencePayload|const buildAssistantPersistencePayload|buildAssistantPersistencePayload\\\" apps/web/src/lib apps/web/src | sed -n '1,160p'\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 16117\\n\\n---\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\npython3 - <<'PY'\\nfrom pathlib import Path\\np = Path('apps/web/src/lib/ai/core/materialize-interrupted-stream.ts')\\nprint('exists', p.exists(), 'lines', sum(1 for _ in p.open()))\\nPY\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 181\\n\\n---\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\necho '--- materialize-interrupted-stream.ts ---'\\nsed -n '1,220p' apps/web/src/lib/ai/core/materialize-interrupted-stream.ts | cat -n\\n\\necho '--- caller references ---'\\nrg -n \\\"materializeInterruptedStream\\\\(\\\" apps/web/src | sed -n '1,120p'\\n\\necho '--- payload builder references ---'\\nrg -n \\\"buildAssistantPersistencePayload\\\" apps/web/src/lib apps/web/src | sed -n '1,160p'\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 15760\\n\\n---\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\necho 'FILE: apps/web/src/lib/ai/core/materialize-interrupted-stream.ts'\\nnl -ba apps/web/src/lib/ai/core/materialize-interrupted-stream.ts | sed -n '1,220p'\\n\\necho\\necho 'REFERENCES: materializeInterruptedStream'\\nrg -n \\\"materializeInterruptedStream\\\\(\\\" apps/web/src | sed -n '1,120p'\\n\\necho\\necho 'REFERENCES: buildAssistantPersistencePayload'\\nrg -n \\\"buildAssistantPersistencePayload\\\" apps/web/src | sed -n '1,160p'\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 264\\n\\n---\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\necho '--- persistAssistantParts.ts ---'\\nsed -n '1,220p' apps/web/src/lib/ai/core/persistAssistantParts.ts | cat -n\\n\\necho\\necho '--- persistAssistantParts.test.ts ---'\\nsed -n '1,220p' apps/web/src/lib/ai/core/__tests__/persistAssistantParts.test.ts | cat -n\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 5124\\n\\n---\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\necho '--- synthesizeAssistantMessage.ts ---'\\nsed -n '1,260p' apps/web/src/lib/ai/streams/synthesizeAssistantMessage.ts | cat -n\\n\\necho\\necho '--- message-utils.ts ---'\\nsed -n '1,320p' apps/web/src/lib/ai/core/message-utils.ts | cat -n\\n\\necho\\necho '--- stream-multicast-registry.ts (part types) ---'\\nsed -n '1,260p' apps/web/src/lib/ai/core/stream-multicast-registry.ts | cat -n\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 18475\\n\\n---\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\necho '--- stream-takeover.ts ---'\\nsed -n '100,190p' apps/web/src/lib/ai/core/stream-takeover.ts | cat -n\\n\\necho\\necho '--- stream-abort-mark.ts ---'\\nsed -n '260,340p' apps/web/src/lib/ai/core/stream-abort-mark.ts | cat -n\\n\\necho\\necho '--- active-streams/route.ts ---'\\nsed -n '80,140p' apps/web/src/app/api/ai/chat/active-streams/route.ts | cat -n\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 13267\\n\\n---\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\nrg -n \\\"parts:|materializeInterruptedStream\\\\(\\\" apps/web/src/lib/ai/core/stream-takeover.ts apps/web/src/lib/ai/core/stream-abort-mark.ts apps/web/src/app/api/ai/chat/active-streams/route.ts | sed -n '1,200p'\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 1126\\n\\n---\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\necho '--- ai-streams schema ---'\\nrg -n \\\"parts:\\\" apps/web/src packages/db/src -g '*ai-streams*' -g '*.ts' | sed -n '1,120p'\\n\\necho\\necho '--- aiStreamSessions schema file(s) ---'\\nfd -a \\\"ai-streams.ts\\\" apps packages/db/src . || true\\nfd -a \\\"ai-streams\\\" apps packages/db/src . || true\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 16936\\n\\n---\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\nrg -n \\\"export const aiStreamSessions|parts\\\" packages/db/src apps/web/src -g '*.ts' | sed -n '1,200p'\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 26952\\n\\n---\\n\\n🏁 Script executed:\\n\\n```shell\\n#!/bin/bash\\nset -euo pipefail\\n\\necho '--- stream-lifecycle.ts relevant slice ---'\\nsed -n '240,320p' apps/web/src/lib/ai/core/stream-lifecycle.ts | cat -n\\n\\necho\\necho '--- checkpoint-serialize.ts ---'\\nsed -n '1,220p' apps/web/src/lib/ai/core/checkpoint-serialize.ts | cat -n\\n\\necho\\necho '--- ai-streams schema ---'\\nsed -n '1,220p' /home/jailuser/git/packages/db/src/schema/ai-streams.ts | cat -n\\n```\\n\\nRepository: 2witstudios/PageSpace\\n\\nLength of output: 17264\\n\\n---\\n\\n\\n\\n

\\n\\n**Move payload construction inside the `try`.** `buildAssistantPersistencePayload(...)` can throw on malformed parts, and `JSON.stringify(...)` can throw on cyclic tool data; in the `void materializeInterruptedStream(...)` path that escapes logging and can become an unhandled rejection.\\n\\n

\\n

🤖 Prompt for AI Agents

\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nIn `@apps/web/src/lib/ai/core/materialize-interrupted-stream.ts` around lines 58 -\\n64, Move the payload construction and tool-call/tool-result JSON serialization\\nin materializeInterruptedStream inside the existing try block, including the\\nnow-dependent initialization as needed. Ensure errors from\\nbuildAssistantPersistencePayload or JSON.stringify reach the function’s existing\\nerror handling so the void invocation does not produce an unhandled rejection.\\n```\\n\\n

\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n✅ Addressed in commit 4ff8b9c\",\"path\":\"apps/web/src/lib/ai/core/materialize-interrupted-stream.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**Actionable comments posted: 1**\\n\\n

\\n

🧹 Nitpick comments (3)

\\n\\n
\\n
apps/web/src/lib/ai/core/stream-abort-mark.ts (1)
\\n\\n`290-317`: _🚀 Performance & Scalability_ | _🔵 Trivial_ | _⚡ Quick win_\\n\\n**Consider materializing rows concurrently instead of sequentially.**\\n\\nThe `status='streaming'` re-check before materializing is a solid safeguard. However, the `for` loop awaits `materializeInterruptedStream(row)` one row at a time; since this function is documented to never throw, `Promise.all(rows.map(...))` would let independent rows materialize concurrently with no loss of fault isolation. This matters because this path runs as part of `takeOverConversationStreams`'s blocking send flow (via `awaitAbortSettled` → `reconcileDeadStreamRows`).\\n\\n\\n\\n
\\n
⚡ Proposed refactor
\\n\\n```diff\\n- for (const row of rows) {\\n- await materializeInterruptedStream(row);\\n- }\\n+ await Promise.all(rows.map((row) => materializeInterruptedStream(row)));\\n```\\n
\\n\\n
\\n
🤖 Prompt for AI Agents
\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nIn `@apps/web/src/lib/ai/core/stream-abort-mark.ts` around lines 290 - 317, Update\\nthe row materialization loop in reconcileDeadStreamRows to invoke\\nmaterializeInterruptedStream for all fetched rows concurrently via Promise.all,\\npreserving the existing no-throw fault-isolation behavior and awaiting\\ncompletion before returning.\\n```\\n\\n
\\n\\n\\n\\n
\\n
\\n
apps/web/src/lib/ai/core/stream-takeover.ts (2)
\\n\\n`1-1`: _🚀 Performance & Scalability_ | _🔵 Trivial_ | _⚡ Quick win_\\n\\n**Sequential materialization loops in both reconciliation paths.** Both `takeOverConversationStreams` and `reconcileDeadStreamRows` process independent rows with `await materializeInterruptedStream(...)` one at a time inside a `for` loop, even though the function is documented to never throw. Since both loops sit on the takeover flow that can block a user's send, switching to `Promise.all` lets independent rows materialize concurrently without losing per-row fault isolation.\\n- `apps/web/src/lib/ai/core/stream-takeover.ts#L125-149`: replace the `for (const messageId of reconcile) { ... await materializeInterruptedStream(...) }` loop with `await Promise.all(reconcile.map(...))`.\\n- `apps/web/src/lib/ai/core/stream-abort-mark.ts#L290-317`: replace the `for (const row of rows) { await materializeInterruptedStream(row); }` loop with `await Promise.all(rows.map((row) => materializeInterruptedStream(row)))`.\\n\\n
\\n
🤖 Prompt for AI Agents
\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nIn `@apps/web/src/lib/ai/core/stream-takeover.ts` at line 1, Update both\\nreconciliation loops, takeOverConversationStreams and reconcileDeadStreamRows,\\nto materialize independent rows concurrently with Promise.all over map\\ncallbacks. Preserve materializeInterruptedStream’s per-row fault isolation and\\nexisting behavior while removing sequential awaits from each for loop.\\n```\\n\\n
\\n\\n\\n\\n---\\n\\n`125-149`: _🚀 Performance & Scalability_ | _🔵 Trivial_ | _⚡ Quick win_\\n\\n**Same sequential-materialization pattern as `stream-abort-mark.ts`.**\\n\\nThis loop awaits `materializeInterruptedStream` one row at a time on the send-blocking takeover path. Since the function is documented to never throw, running these concurrently would reduce latency on the (rare but real) crashed-stream takeover path.\\n\\n\\n\\n
\\n
⚡ Proposed refactor
\\n\\n```diff\\n- const rowById = new Map(rows.map((r) => [r.messageId, r]));\\n- for (const messageId of reconcile) {\\n- const row = rowById.get(messageId);\\n- if (!row) continue;\\n- await materializeInterruptedStream({\\n- messageId,\\n- channelId,\\n- conversationId,\\n- userId: row.userId,\\n- parts: row.parts,\\n- });\\n- }\\n+ const rowById = new Map(rows.map((r) => [r.messageId, r]));\\n+ await Promise.all(reconcile.map((messageId) => {\\n+ const row = rowById.get(messageId);\\n+ if (!row) return undefined;\\n+ return materializeInterruptedStream({\\n+ messageId,\\n+ channelId,\\n+ conversationId,\\n+ userId: row.userId,\\n+ parts: row.parts,\\n+ });\\n+ }));\\n```\\n
\\n\\n
\\n
🤖 Prompt for AI Agents
\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nIn `@apps/web/src/lib/ai/core/stream-takeover.ts` around lines 125 - 149, Update\\nthe reconciliation loop in the takeover path to materialize all rows\\nconcurrently rather than awaiting each materializeInterruptedStream call\\nsequentially. Preserve the existing row lookup and skip-missing-row behavior,\\nand await completion of the full batch before continuing.\\n```\\n\\n
\\n\\n\\n\\n
\\n\\n

\\n\\n

\\n

🤖 Prompt for all review comments with AI agents

\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nInline comments:\\nIn `@apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`:\\n- Around line 58-64: Move the payload construction and tool-call/tool-result\\nJSON serialization in materializeInterruptedStream inside the existing try\\nblock, including the now-dependent initialization as needed. Ensure errors from\\nbuildAssistantPersistencePayload or JSON.stringify reach the function’s existing\\nerror handling so the void invocation does not produce an unhandled rejection.\\n\\n---\\n\\nNitpick comments:\\nIn `@apps/web/src/lib/ai/core/stream-abort-mark.ts`:\\n- Around line 290-317: Update the row materialization loop in\\nreconcileDeadStreamRows to invoke materializeInterruptedStream for all fetched\\nrows concurrently via Promise.all, preserving the existing no-throw\\nfault-isolation behavior and awaiting completion before returning.\\n\\nIn `@apps/web/src/lib/ai/core/stream-takeover.ts`:\\n- Line 1: Update both reconciliation loops, takeOverConversationStreams and\\nreconcileDeadStreamRows, to materialize independent rows concurrently with\\nPromise.all over map callbacks. Preserve materializeInterruptedStream’s per-row\\nfault isolation and existing behavior while removing sequential awaits from each\\nfor loop.\\n- Around line 125-149: Update the reconciliation loop in the takeover path to\\nmaterialize all rows concurrently rather than awaiting each\\nmaterializeInterruptedStream call sequentially. Preserve the existing row lookup\\nand skip-missing-row behavior, and await completion of the full batch before\\ncontinuing.\\n```\\n\\n

\\n\\n

\\n

🪄 Autofix (Beta)

\\n\\nFix all unresolved CodeRabbit comments on this PR:\\n\\n- [ ] Push a commit to this branch (recommended)\\n- [ ] Create a new PR with the fixes\\n\\n

\\n\\n---\\n\\n

\\n

ℹ️ Review info

\\n\\n

\\n

⚙️ Run configuration

\\n\\n**Configuration used**: defaults\\n\\n**Review profile**: CHILL\\n\\n**Plan**: Pro\\n\\n**Run ID**: `a434bdf7-a8e1-4a87-aba4-2c614fc4522b`\\n\\n

\\n\\n

\\n

📥 Commits

\\n\\nReviewing files that changed from the base of the PR and between 117d33d577fd80c760fb69aa66f4a7f481ee276e and 06e95f351a860d760f9f316a97e4ba4e9ad976bf.\\n\\n

\\n\\n

\\n

📒 Files selected for processing (13)

\\n\\n* `apps/web/src/app/api/ai/chat/active-streams/__tests__/route.test.ts`\\n* `apps/web/src/app/api/ai/chat/active-streams/route.ts`\\n* `apps/web/src/components/ai/shared/chat/MessageRenderer.tsx`\\n* `apps/web/src/components/ai/shared/chat/__tests__/MessageRenderer.interrupted.test.tsx`\\n* `apps/web/src/components/ai/shared/chat/message-types.ts`\\n* `apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts`\\n* `apps/web/src/lib/ai/core/__tests__/stream-abort-mark.test.ts`\\n* `apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts`\\n* `apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`\\n* `apps/web/src/lib/ai/core/stream-abort-mark.ts`\\n* `apps/web/src/lib/ai/core/stream-liveness.ts`\\n* `apps/web/src/lib/ai/core/stream-takeover.ts`\\n* `apps/web/vitest.config.ts`\\n\\n

\\n\\n

\\n\\n\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Fixed in commit 4ff8b9c72 (pushed before this comment was surfaced to me): `materializeInterruptedStream` now runs `payload.uiMessage.parts` through the same `extractStructuredContentFromParts` pipeline `saveMessageToDatabase`/`saveGlobalAssistantMessageToDatabase` use, instead of persisting `payload.content` (plain concatenated text) directly. Both the `chatMessages` and `messages` branches now use `structuredContent`, so tool calls/results, file parts, and part ordering survive materialization and reload correctly via `convertDbMessageToUIMessage`. Added a regression test (`materialize-interrupted-stream.test.ts`, \\\"builds message content via the same structured-content pipeline...\\\") asserting the persisted content is the structured JSON envelope, not flat text. Leaving this thread open for reviewer verification per this session's convention of not self-resolving fixes made during the same pass.\",\"path\":\"apps/web/src/lib/ai/core/materialize-interrupted-stream.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Fixed in commit 4ff8b9c72 (pushed before this comment was surfaced to me): the interrupted badge was moved OUT of `TextBlock`'s render (which only fires for the message's text-group blocks) and now renders at the message level in `MessageRenderer.tsx`, right after the `groupedParts.map(...)` loop closes — unconditional on which kind of group is last (text, tool-run, tool, file, or command). Added a regression test (`MessageRenderer.interrupted.test.tsx`, \\\"given an interrupted message with ONLY a tool part (no text ever arrived), still shows the badge\\\") that would have caught the original bug. Also discovered and fixed the same gap in `CompactMessageRenderer.tsx` (the actual sidebar/global-assistant surface), which had never received the badge treatment at all in the first pass — added parity coverage there too (`CompactMessageRenderer.interrupted.test.tsx`). Leaving this thread open for reviewer verification per this session's convention of not self-resolving fixes made during the same pass.\",\"path\":\"apps/web/src/components/ai/shared/chat/MessageRenderer.tsx\",\"side\":\"RIGHT\",\"line\":385}{\"type\":\"pull_request_comment\",\"body\":\"Acknowledging CodeRabbit's 3 nitpick suggestions (sequential-vs-concurrent materialization in `stream-abort-mark.ts`'s `reconcileDeadStreamRows` and `stream-takeover.ts`'s reconcile loop) — these were already fixed in commit 4ff8b9c72 (pushed as part of the same convergence pass, before these comments were surfaced to me): both loops now use `Promise.all` over independent rows instead of sequential `for...await`, since `materializeInterruptedStream` never throws and each row is independent. No separate review thread exists for these (they were nitpicks inside the review summary, not inline comments), so acknowledging here instead.\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `4ff8b9c723`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Don't overwrite interrupted rows during materialization**\\n\\nWhen the normal abort/onFinish path has already saved the assistant row as `status='interrupted'` but the fire-and-forget `ai_stream_sessions` terminal update fails, the stream row remains eligible for a later dead-row sweep. This guard, and the identical global-table guard above, only protects `complete`, so the sweep can overwrite that terminal interrupted message (potentially fuller onFinish content or a user edit) with the older debounced `parts` snapshot. Restrict the conflict update to the streaming placeholder instead of all non-complete rows.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"apps/web/src/lib/ai/core/materialize-interrupted-stream.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Use stream start time for inserted materialized messages**\\n\\nWhen this materializer has to insert a missing assistant row, such as a crash after the stream-session insert but before the placeholder message insert, `createdAt: now` timestamps the recovered reply at reap/takeover time. A user's follow-up message is saved before takeover runs, so the recovered assistant response can sort after that follow-up instead of at its original stream position. Carry the stream row's `startedAt` into materialization and use it for the inserted message timestamp.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"apps/web/src/lib/ai/core/materialize-interrupted-stream.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n\\n

\\n

🧹 Nitpick comments (1)

\\n\\n
\\n
apps/web/src/components/ai/shared/chat/MessageRenderer.tsx (1)
\\n\\n`447-455`: _📐 Maintainability & Code Quality_ | _🔵 Trivial_ | _⚡ Quick win_\\n\\n**Provide an explicit accessible name for the icon-only retry button.** \\n\\nWhile the `title` attribute gives a visual tooltip and can sometimes act as a fallback, explicitly setting an `aria-label` ensures all screen readers can consistently identify the control.\\n- `apps/web/src/components/ai/shared/chat/MessageRenderer.tsx#L447-L455`: Add `aria-label=\\\"Retry this message\\\"` to the Button props.\\n- `apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx#L445-L453`: Add `aria-label=\\\"Retry this message\\\"` to the Button props here as well.\\n\\n
\\n
🤖 Prompt for AI Agents
\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nIn `@apps/web/src/components/ai/shared/chat/MessageRenderer.tsx` around lines 447\\n- 455, Add an explicit aria-label of “Retry this message” to the icon-only retry\\nButton in MessageRenderer.tsx at lines 447-455 and CompactMessageRenderer.tsx at\\nlines 445-453, while preserving the existing title and retry behavior.\\n```\\n\\n
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🤖 Prompt for all review comments with AI agents

\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nNitpick comments:\\nIn `@apps/web/src/components/ai/shared/chat/MessageRenderer.tsx`:\\n- Around line 447-455: Add an explicit aria-label of “Retry this message” to the\\nicon-only retry Button in MessageRenderer.tsx at lines 447-455 and\\nCompactMessageRenderer.tsx at lines 445-453, while preserving the existing title\\nand retry behavior.\\n```\\n\\n

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⚙️ Run configuration

\\n\\n**Configuration used**: defaults\\n\\n**Review profile**: CHILL\\n\\n**Plan**: Pro\\n\\n**Run ID**: `631821f3-2f9a-4cca-b97b-7ec984a83f61`\\n\\n

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\\n\\nReviewing files that changed from the base of the PR and between 06e95f351a860d760f9f316a97e4ba4e9ad976bf and 9470bd29afdb052e723641f710f430a7a528631a.\\n\\n

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\\n\\n* `apps/web/src/app/api/ai/chat/active-streams/__tests__/route.test.ts`\\n* `apps/web/src/app/api/ai/chat/active-streams/route.ts`\\n* `apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx`\\n* `apps/web/src/components/ai/shared/chat/MessageRenderer.tsx`\\n* `apps/web/src/components/ai/shared/chat/__tests__/CompactMessageRenderer.interrupted.test.tsx`\\n* `apps/web/src/components/ai/shared/chat/__tests__/MessageRenderer.interrupted.test.tsx`\\n* `apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts`\\n* `apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts`\\n* `apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`\\n* `apps/web/src/lib/ai/core/stream-abort-mark.ts`\\n* `apps/web/src/lib/ai/core/stream-takeover.ts`\\n* `apps/web/src/services/api/__tests__/ai-undo-service.test.ts`\\n\\n

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\\n\\n* apps/web/src/app/api/ai/chat/active-streams/route.ts\\n* apps/web/src/app/api/ai/chat/active-streams/__tests__/route.test.ts\\n* apps/web/src/lib/ai/core/stream-abort-mark.ts\\n* apps/web/src/lib/ai/core/stream-takeover.ts\\n* apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts\\n* apps/web/src/lib/ai/core/materialize-interrupted-stream.ts\\n* apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts\\n\\n

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\\n\\n\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Fixed in commit c6e046b51 (pushed before this comment was surfaced to me): tightened the guard from `ne(status, 'complete')` to `eq(status, 'streaming')` on both the `messages` and `chat_messages` conflict-update branches. This makes it a true compare-and-swap — a row leaves 'streaming' exactly once, so this can never re-touch an already-terminal row whether it landed at 'complete' or 'interrupted' by the normal path. Added regression tests in `materialize-interrupted-stream.test.ts` simulating the guard against an already-'interrupted' row (in addition to the existing already-'complete' case) confirming the write is a no-op. Leaving open for reviewer verification per this session's convention.\",\"path\":\"apps/web/src/lib/ai/core/materialize-interrupted-stream.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Fixed in commit c6e046b51 (pushed before this comment was surfaced to me): added `startedAt: Date` to `MaterializableStreamRow` and used it as `createdAt` for the defensive insert-if-missing branch on both table variants, instead of reap-time `now`. Threaded `startedAt` through all three call sites — `stream-takeover.ts` and the active-streams lazy sweep already had it in hand from their existing SELECTs; added it as a new selected column to `reconcileDeadStreamRows`'s query in `stream-abort-mark.ts`. Added a dedicated test (`materialize-interrupted-stream.test.ts`, \\\"uses the stream's actual start time, not reap time, as createdAt for a newly-inserted row\\\") plus a threading test in `stream-takeover.test.ts` confirming the row's real `startedAt` reaches the call, not takeover time. Leaving open for reviewer verification per this session's convention.\\n\",\"path\":\"apps/web/src/lib/ai/core/materialize-interrupted-stream.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Acknowledging CodeRabbit's accessibility nitpick (icon-only retry button relying on `title` alone) — fixed in commit fb8f3349c: added explicit `aria-label=\\\"Retry this message\\\"` to both MessageRenderer.tsx and CompactMessageRenderer.tsx's new retry buttons.\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"@codex review\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Report dead rows reconciled only after materialization succeeds**\\n\\nWhen a provably-dead row reaches this path and `materializeInterruptedStream` cannot write the interrupted message, that helper catches/logs and returns without settling the session row, leaving it `status='streaming'`. This `Promise.all` has no success signal, but the function later includes every id from `reconcile` in `allReconciled`, so a transient DB/write failure is reported and logged as successfully reconciled even though the row remains a retryable ghost; the previous update path returned `reconciled: []` on this partial failure. Please have materialization return whether it actually settled before counting the id as reconciled.\\n\\nUseful? React with 👍 / 👎.\",\"path\":\"apps/web/src/lib/ai/core/stream-takeover.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n### 💡 Codex Review\\n\\nHere are some automated review suggestions for this pull request.\\n\\n**Reviewed commit:** `fb8f3349c9`\\n \\n\\n

ℹ️ About Codex in GitHub

\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Fixed in commit 9b87730ac (pushed before this comment was surfaced to me): `materializeInterruptedStream` now returns `Promise` (true only if both the message write and the session-row settle succeeded), and the `Promise.all` in this reconcile path now filters `provablyDead` by actual success before contributing to `locallyReconciled`. Also extended the same fix to the sibling paths this exact gap affected: `reconcileDeadStreamRows` (stream-abort-mark.ts) now returns `Promise` — the messageIds it actually materialized — and the cross-instance branch here now sets `remotelyReconciled` from that return value instead of from `decideAbortOutcome`'s eligibility judgment. Added regression tests for partial-failure batches in both `stream-takeover.test.ts` and `stream-abort-mark.test.ts`. Leaving open for reviewer verification per this session's convention.\\n\",\"path\":\"apps/web/src/lib/ai/core/stream-takeover.ts\",\"side\":\"RIGHT\",\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"\\n\\n> [!CAUTION]\\n> Some comments are outside the diff and can’t be posted inline due to platform limitations.\\n> \\n> \\n> \\n>

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⚠️ Outside diff range comments (1)

\\n> \\n>
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apps/web/src/lib/ai/core/materialize-interrupted-stream.ts (1)
\\n> \\n> `174-205`: _🗄️ Data Integrity & Integration_ | _🟡 Minor_ | _⚡ Quick win_\\n> \\n> **apps/web/src/lib/ai/core/materialize-interrupted-stream.ts:174-205 — Treat a zero-row settle as unsuccessful** \\n> `db.update(...).where(...)` can return 0 when another path already terminalized the row. Check `rowCount` and only return `true` when this pass actually settles the session; add a regression test for the zero-row case.\\n> \\n>
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🤖 Prompt for AI Agents
\\n> \\n> ```\\n> Verify each finding against current code. Fix only still-valid issues, skip the\\n> rest with a brief reason, keep changes minimal, and validate.\\n> \\n> In `@apps/web/src/lib/ai/core/materialize-interrupted-stream.ts` around lines 174\\n> - 205, Update the session-settling update in materializeInterruptedStream to\\n> inspect its affected-row count and set settled to false when the conditional\\n> update changes zero rows, including when another path already terminalized the\\n> session. Preserve the existing exception handling and return settled only as\\n> true when this invocation actually updates the row, and add a regression test\\n> covering the zero-row case.\\n> ```\\n> \\n>
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🤖 Prompt for all review comments with AI agents

\\n\\n```\\nVerify each finding against current code. Fix only still-valid issues, skip the\\nrest with a brief reason, keep changes minimal, and validate.\\n\\nOutside diff comments:\\nIn `@apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`:\\n- Around line 174-205: Update the session-settling update in\\nmaterializeInterruptedStream to inspect its affected-row count and set settled\\nto false when the conditional update changes zero rows, including when another\\npath already terminalized the session. Preserve the existing exception handling\\nand return settled only as true when this invocation actually updates the row,\\nand add a regression test covering the zero-row case.\\n```\\n\\n

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ℹ️ Review info

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⚙️ Run configuration

\\n\\n**Configuration used**: defaults\\n\\n**Review profile**: CHILL\\n\\n**Plan**: Pro\\n\\n**Run ID**: `d5aa5a9e-984d-4360-bd8f-804ac4497c18`\\n\\n

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📥 Commits

\\n\\nReviewing files that changed from the base of the PR and between fb8f3349c9af6a002f41e4c0acbbd14adf3e4374 and 9b87730ac0ccfc12f4a237c9b1387f2c37e4489e.\\n\\n

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\\n\\n* `apps/web/src/lib/ai/core/__tests__/abort-stream-anywhere-pending.test.ts`\\n* `apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts`\\n* `apps/web/src/lib/ai/core/__tests__/stream-abort-mark.test.ts`\\n* `apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts`\\n* `apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`\\n* `apps/web/src/lib/ai/core/stream-abort-mark.ts`\\n* `apps/web/src/lib/ai/core/stream-takeover.ts`\\n\\n

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\\n\\n* apps/web/src/lib/ai/core/stream-abort-mark.ts\\n* apps/web/src/lib/ai/core/__tests__/stream-abort-mark.test.ts\\n* apps/web/src/lib/ai/core/stream-takeover.ts\\n* apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts\\n* apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts\\n\\n

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\\n\\n\",\"path\":null,\"side\":null,\"line\":null}{\"type\":\"pull_request_comment\",\"body\":\"Acknowledging CodeRabbit's outside-diff-range finding on `materialize-interrupted-stream.ts` (session-settle UPDATE treated as successful even when it matches zero rows) — fixed in commit 2f11e1f20: now checks `(result.rowCount ?? 0) > 0`, matching the existing conditional-update pattern in `compaction-repository.ts`. Added regression tests for both the zero-rowCount case and the defensive `?? 0` fallback.\",\"path\":null,\"side\":null,\"line\":null}","text_elements",[],{"_399":759,"_378":379,"_401":385},{"_402":760,"_404":-5,"_42":-5,"_406":761,"_408":-5,"_96":310,"_92":410},[762],{"_411":385},{"_46":755,"_92":763},"input_text",{"_399":765,"_378":379,"_401":385},{"_402":766,"_404":-5,"_42":-5,"_406":767,"_408":-5,"_96":310,"_92":410},[768,769],{"_411":385},{"_46":771,"_92":763},{"_46":770,"_92":763},"\n /workspace/PageSpace\n bash\n 2026-07-15\n Etc/UTC\n /workspace/PageSpace\n","# AGENTS.md instructions for /workspace/PageSpace\n\n\n# PageSpace Codebase Guidelines\n\n## 1. TECH STACK & ARCHITECTURE\n\n### 1.1. Core Technology Stack\n\n- **Full-Stack**: Next.js 15 App Router + TypeScript + Tailwind + shadcn/ui\n- **Database**: PostgreSQL + Drizzle ORM (local deployment via Docker)\n- **AI**: Ollama (local models) + Vercel AI SDK + OpenRouter + Google AI SDK\n- **Auth**: Passwordless — passkeys (WebAuthn) + magic links; opaque session tokens, SHA3-256 hashed at rest\n- **File Storage**: Local filesystem with metadata in PostgreSQL\n- **Real-time**: Socket.IO for live collaboration\n- **Deployment**: Docker containers on Mac Studio (local deployment)\n\n### 1.2. Monorepo Architecture\n\nThis project uses a bun workspace with the following structure:\n\n- `apps/web`: The main Next.js 15 frontend and backend application\n- `apps/realtime`: A dedicated Socket.IO service for real-time communication\n- `apps/processor`: Express-based file/OCR processing pipeline\n- `packages/db`: The centralized Drizzle ORM package containing database schema, migrations, and query logic\n- `packages/lib`: Shared utilities, types, and functions used across the monorepo\n- `types/`: Global TypeScript types\n- `scripts/`: Helper scripts\n\n**Database Schema**: Entry point at `packages/db/src/schema.ts`; migrations emit to `packages/db/drizzle/`.\n\n### 1.3. Key Dependencies\n\n**Frontend & UI:**\n- Next.js 15.3.5 with App Router\n- React ^19.0.0 + TypeScript ^5.8.3\n- Tailwind CSS ^4 + shadcn/ui components\n- TipTap rich text editor with markdown support\n- Monaco Editor for code editing\n- @dnd-kit for drag-and-drop functionality\n\n**Backend & Database:**\n- Drizzle ORM ^0.32.2 with PostgreSQL\n- Passwordless auth: `@simplewebauthn/server` for passkeys, magic-link tokens, opaque session tokens (SHA3-256 hashed at rest)\n\n**AI & Real-time:**\n- Vercel AI SDK ^4.3.17\n- Ollama AI provider ^1.2.0 for local models\n- @ai-sdk/google ^1.2.22, @ai-sdk/anthropic ^1.2.12, @ai-sdk/openai ^1.3.23\n- @openrouter/ai-sdk-provider 0.7.2 for cloud models\n- Socket.IO ^4.7.5 for real-time collaboration\n\n**State Management:**\n- Zustand for client state\n- SWR for server state and caching\n\n## 2. NEXT.JS 15 ROUTE HANDLER REQUIREMENTS\n\n### 2.1. Breaking Change: Dynamic Route params are Promises\n\n**CRITICAL**: In Next.js 15, `params` in dynamic routes are Promise objects. You MUST await `context.params` before destructuring.\n\n```typescript\n// ✅ CORRECT Pattern\nexport async function GET(\n request: Request,\n context: { params: Promise<{ id: string }> }\n) {\n const { id } = await context.params; // Must await params\n return Response.json({ id });\n}\n\n// ❌ INCORRECT Pattern\nexport async function GET(\n request: Request,\n { params }: { params: { id: string } } // WRONG: params is a Promise\n) {\n // This will fail in Next.js 15\n}\n```\n\n### 2.2. Request Handling Standards\n\n- **Get Request Body**: `const body = await request.json();`\n- **Get Search Params**: `const { searchParams } = new URL(request.url);`\n- **Return JSON**: `return Response.json(data)` or `return NextResponse.json(data)`\n\n## 3. DEVELOPMENT STANDARDS\n\n### 3.1. Code Quality Principles\n\n- **No `any` types** - Always use proper TypeScript types\n- **Explicit over implicit** - Clear, self-documenting code\n- **Right-first approach** - Build the ideal solution from the start\n- **Consistent patterns** - Follow established conventions\n\n### 3.2. Coding Style & Naming Conventions\n\n- TypeScript strict mode; ESM modules\n- **Filenames**: kebab-case (`image-processor.ts`), with exceptions:\n - React hooks: camelCase matching export (`useAuth.ts`)\n - Zustand stores: camelCase with `use` prefix (`useAuthStore.ts`)\n - React components: PascalCase (`UserProfile.tsx`)\n- **Variables/functions**: camelCase\n- **Constants**: UPPER_SNAKE_CASE\n- **Types/enums**: PascalCase\n- Format with Prettier; lint with Next/ESLint (`apps/web/eslint.config.mjs`)\n- Keep diffs minimal and focused\n\n### 3.3. Critical Patterns\n\n**Message Content Structure:**\n```typescript\n// ✅ CORRECT - Always use message parts structure\nconst message = {\n parts: [\n { type: 'text', text: \"Hello world\" }\n ]\n};\n```\n\n**Permission Logic:**\n```typescript\n// ✅ CORRECT - Use centralized permissions\nimport { getUserAccessLevel, canUserEditPage } from '@pagespace/lib/permissions/permissions';\nconst accessLevel = await getUserAccessLevel(userId, pageId);\n```\n\n**Database Access:**\n```typescript\n// ✅ CORRECT - Always use Drizzle subpath imports\nimport { db } from '@pagespace/db/db';\nimport { pages } from '@pagespace/db/schema/core';\nconst page = await db.select().from(pages);\n```\n\n## 4. BUILD, TEST, AND DEVELOPMENT COMMANDS\n\n### 4.1. Development Commands\n\n```bash\n# Install dependencies\nbun install\n\n# Environment setup\ncp .env.example .env\n# Also: apps/web/.env.example → apps/web/.env if needed\n\n# Database (local)\nbun run dev:db # Starts Postgres + runs migrations\ndocker compose up -d # Alternative\n\n# Develop all apps\nbun run dev # Runs Turbo dev across packages\n\n# Focus a single app\nbun run --filter 'web' dev\nbun run --filter 'realtime' dev\nbun run --filter '@pagespace/processor' dev\n\n# Build and quality checks\nbun run build # Build all apps\nbun run typecheck # TypeScript checks\nbun run lint # ESLint\nbun run --filter 'web' build # Build web app only\nbun run --filter 'web' lint # Lint web app only\n\n# Database tasks\nbun run db:generate # Create migrations\nbun run db:migrate # Apply migrations\nbun run --filter '@pagespace/db' db:studio # Browse schema\n```\n\n### 4.2. Testing Guidelines\n\n- No global test runner is enforced yet. When adding tests:\n - Prefer unit tests for `packages/lib`/`apps/processor` (`*.test.ts` next to source or in `__tests__/`)\n - Add a `test` script in the target package and run with `bun run --filter '' test`\n - Use `bun run typecheck` and `bun run lint` as gates before PRs\n\n## 5. PAGESPACE DOMAIN EXPERT AGENTS\n\nPageSpace has 17 specialized domain expert agents with deep knowledge of specific subsystems.\n\n### 5.1. Core Infrastructure (5 agents)\n\n- **Authentication & Security Expert**: passkey/magic-link auth, opaque session tokens, CSRF protection, encryption, rate limiting, session management\n- **Database & Schema Expert**: Drizzle ORM, PostgreSQL, migrations, schema design, query optimization\n- **Permissions & Authorization Expert**: RBAC, drive membership, page permissions, access control logic\n- **Real-time Collaboration Expert**: Socket.IO, live sync, conflict resolution, event broadcasting\n- **Monitoring & Analytics Expert**: Logging, tracking, performance metrics, error handling, usage analytics\n\n### 5.2. AI Intelligence (3 agents)\n\n- **AI System Architect**: AI providers, message flow, streaming, model capabilities, provider factory\n- **AI Tools Integration Expert**: Tool calling, PageSpace tools, batch operations, search tools\n- **AI Agents Communication Expert**: Agent roles, agent-to-agent communication, custom agents\n\n### 5.3. Content & Workspace (4 agents)\n\n- **Pages & Content Expert**: Page types, content management, CRUD operations, tree structure\n- **Drives & Workspace Expert**: Drive management, membership, invitations, workspace organization\n- **File Processing Expert**: File uploads, processor service, image optimization, content-addressed storage\n- **Search & Discovery Expert**: Regex search, glob patterns, multi-drive search, mention system\n\n### 5.4. Frontend & UX (3 agents)\n\n- **Frontend Architecture Expert**: Next.js 15, App Router, components, state management, Zustand, SWR\n- **Editor System Expert**: Tiptap, Monaco, document state, auto-save, Prettier integration\n- **Canvas Dashboard Expert**: Shadow DOM, custom HTML/CSS, navigation, security sanitization\n\n### 5.5. API & Integration (2 agents)\n\n- **API Routes Expert**: Next.js routes, async params, request handling, error responses, middleware\n- **MCP Integration Expert**: MCP tokens, document operations, protocol integration, external tools\n\n## 6. COMMON WORKFLOWS\n\n### 6.1. Development Workflows\n\n1. **Adding new API routes**: Follow Next.js 15 async params pattern (see Section 2.1)\n2. **Database changes**: Update schema in `packages/db`, generate migrations with `bun run db:generate`\n3. **New components**: Follow existing patterns in `components/` directory\n4. **Permission changes**: Update centralized logic in `@pagespace/lib/permissions/permissions`\n\n### 6.2. Commit & Pull Request Guidelines\n\n- **Commits**: short, imperative subject (≤72 chars), optional scope like `[web]`, `[processor]`\n- **PRs**: clear description, linked issues, screenshots for UI, note DB migrations and any `.env` or config changes. Include reproduction/verification steps.\n- **Before opening**: run `bun run build`, `bun run typecheck`, and relevant `db:*` tasks\n- **Documentation**: When changes land, update the changelog and any user-visible notes\n\n## 7. SECURITY & CONFIGURATION\n\n- Never commit secrets. Base config in `.env.example`; runtime in `.env`\n- Important vars: `DATABASE_URL`, encryption keys, `WEB_APP_URL`, `NEXT_PUBLIC_*`, service ports\n- For self‑host, see `docker-compose.yml`\n\n",{"_399":773,"_378":379,"_401":385},{"_402":774,"_404":-5,"_42":-5,"_406":775,"_408":-5,"_96":776,"_92":410},[777,778],{"_411":385},"developer",{"_46":780,"_92":763},{"_46":779,"_92":763},"\n## Skills\nA skill is a set of instructions provided through a `SKILL.md` source. Below is the list of skills that can be used. Each entry includes a name, description, and source locator. `file` locators are on the host filesystem, `environment resource` locators are owned by an execution environment, `orchestrator resource` locators are opaque non-filesystem resources, and `custom resource` locators use their provider's access mechanism.\n### Available skills\n- imagegen: Generate or edit raster images when the task benefits from AI-created bitmap visuals such as photos, illustrations, textures, sprites, mockups, or transparent-background cutouts. Use when Codex should create a brand-new image, transform an existing image, or derive visual variants from references, and the output should be a bitmap asset rather than repo-native code or vector. Do not use when the task is better handled by editing existing SVG/vector/code-native assets, extending an established icon or logo system, or building the visual directly in HTML/CSS/canvas. (file: /opt/codex/skills/.system/imagegen/SKILL.md)\n- openai-docs: Use when the user asks how to build with OpenAI products or APIs, asks about Codex itself or choosing Codex surfaces, needs up-to-date official documentation with citations, help choosing the latest model for a use case, or model upgrade and prompt-upgrade guidance; use OpenAI docs MCP tools for non-Codex docs questions, use the Codex manual helper first for broad Codex self-knowledge, and restrict fallback browsing to official OpenAI domains. (file: /opt/codex/skills/.system/openai-docs/SKILL.md)\n- plugin-creator: Create and scaffold plugin directories for Codex with a required `.codex-plugin/plugin.json`, optional plugin folders/files, valid manifest defaults, and personal-marketplace entries by default. Use when Codex needs to create a new personal plugin, add optional plugin structure, generate or update marketplace entries for plugin ordering and availability metadata, or update an existing local plugin during development with the CLI-driven cachebuster and reinstall flow. (file: /opt/codex/skills/.system/plugin-creator/SKILL.md)\n- skill-creator: Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations. (file: /opt/codex/skills/.system/skill-creator/SKILL.md)\n- skill-installer: Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos). (file: /opt/codex/skills/.system/skill-installer/SKILL.md)\n### How to use skills\n- Discovery: The list above is the skills available in this session (name + description + source locator). `file` entries live on the host filesystem, `environment resource` entries are owned by their execution environment, `orchestrator resource` entries must be accessed through `skills.list` and `skills.read`, and `custom resource` entries use their provider's access mechanism.\n- Trigger rules: If the user names a skill (with `$SkillName` or plain text) OR the task clearly matches a skill's description shown above, you must use that skill for that turn. Multiple mentions mean use them all. Do not carry skills across turns unless re-mentioned.\n- Missing/blocked: If a named skill isn't in the list or its source can't be read, say so briefly and continue with the best fallback.\n- How to use a skill (progressive disclosure):\n 1) After deciding to use a skill, the main agent must read its `SKILL.md` completely before taking task actions. For a `file` entry, open the listed path. For an `environment resource`, use the filesystem of the owning environment. For an `orchestrator resource`, call `skills.list` with `{\"authority\":{\"kind\":\"orchestrator\"}}`, select the matching package, and pass its `main_resource` to `skills.read`. If a read is truncated or paginated, continue until EOF.\n 2) When `SKILL.md` references another resource, use the same access mechanism. Resolve relative paths against a filesystem-backed skill directory. For orchestrator skills, pass the exact referenced resource identifier with the same authority and package to `skills.read`; do not treat `skill://` identifiers as filesystem paths.\n 3) If `SKILL.md` points to extra folders such as `references/`, use its routing instructions to identify the resources required for the task. The main agent must read each required instruction or reference file itself before acting on it. Do not delegate reading, summarizing, or interpreting skill instructions to a subagent. Subagents may still perform task work when the selected skill allows it.\n 4) For filesystem-backed skills, prefer running or patching provided scripts instead of retyping large code blocks. For orchestrator skills, use `skills.read` and the available tools; do not invent a local path.\n 5) Reuse provided assets or templates through the same source access mechanism instead of recreating them.\n- Coordination and sequencing:\n - If multiple skills apply, choose the minimal set that covers the request and state the order you'll use them.\n - Announce which skill(s) you're using and why (one short line). If you skip an obvious skill, say why.\n- Context hygiene:\n - Progressive disclosure applies to selecting relevant files, not partially reading a selected instruction file. Do not load unrelated references, scripts, or assets.\n - Avoid deep reference-chasing: prefer opening only files directly linked from `SKILL.md` unless you're blocked.\n - When variants exist (frameworks, providers, domains), pick only the relevant reference file(s) and note that choice.\n- Safety and fallback: If a skill can't be applied cleanly (missing files, unclear instructions), state the issue, pick the next-best approach, and continue.\n","\nFilesystem sandboxing defines which files can be read or written. `sandbox_mode` is `danger-full-access`: No filesystem sandboxing - all commands are permitted. Network access is enabled.\nApproval policy is currently never. Do not provide the `sandbox_permissions` for any reason, commands will be rejected.\n","turn/started",{"_378":379,"_87":783},{"_103":-5,"_42":385,"_386":784,"_388":389,"_390":391,"_392":785},[],"inProgress",{"_392":787,"_378":379},{"_788":789,"_92":790},"activeFlags",[],"active","thread/started",{"_793":794},"thread",{"_795":-5,"_796":-5,"_797":798,"_799":391,"_438":439,"_800":15,"_801":-5,"_802":-5,"_803":-5,"_804":805,"_42":379,"_806":807,"_189":-5,"_808":-5,"_164":809,"_810":203,"_811":391,"_812":379,"_443":813,"_392":814,"_815":-5,"_77":816,"_817":391},"agentNickname","agentRole","cliVersion","0.144.0-alpha.4","createdAt","ephemeral","extra","forkedFromId","gitInfo","historyMode","legacy","modelProvider","openai","parentThreadId","/opt/codex/sessions/2026/07/15/rollout-2026-07-15T09-45-07-019f652a-6eeb-7f22-bfd3-484a2de7c350.jsonl","preview","recencyAt","sessionId","vscode",{"_92":396},"threadSource",[],"updatedAt",[],"messages",[821],{"_42":822,"_823":824,"_825":826,"_827":826,"_402":828,"_392":829,"_404":-5,"_830":32,"_831":832,"_833":834,"_835":-5},"e072698d-a6ab-46e8-9c92-6c9dc61a2984","author",{"_96":310,"_189":-5,"_831":844},"create_time",1784108706.669893,"update_time",{"_840":46,"_841":842},"finished_successfully","weight","metadata",{"_836":837},"recipient","all","channel","l1239dk1",{"_838":839},"inline_comments",[],"content_type","parts",[843],"@codex address that feedback\nfeat(ai): materialize interrupted streams on dead-row reap\n\n## Summary\nPR 3 of the \"Server Stream Durability & Rejoin\" epic — dependency (status column, PR #2076) merged, branch rebased onto current master.\n\n- `materializeInterruptedStream(row)` (`apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`): from a provably-dead `ai_stream_sessions` row, builds the message payload from its parts snapshot (reusing `buildAssistantPersistencePayload` + `extractStructuredContentFromParts`, the same pipeline execute-end/onFinish use — preserves file/data parts and ordering, not just flat text), upserts `chat_messages`/`messages` to `status: 'interrupted'` guarded by a **compare-and-swap** `setWhere: eq(status, 'streaming')` on the conflict clause (a row leaves `'streaming'` exactly once, so this can never re-touch an already-terminal row whether it landed at `'complete'` or `'interrupted'` by the normal path), re-syncs `conversationId` on conflict, uses the stream's real `startedAt` (not reap time) for the defensive insert-if-missing branch, then settles the session row terminal (checking actual `rowCount`, not just no-throw — a conditional UPDATE that matches zero rows because a concurrent reap already settled it does not throw) and broadcasts `stream_complete({aborted: true})`. Returns whether the row was genuinely driven terminal, never throws.\n- Wired into all three reap paths named on the board: `stream-takeover.ts`'s reconcile set, `stream-abort-mark.ts`'s `reconcileDeadStreamRows`, and a new lazy sweep in `GET /api/ai/chat/active-streams`. **Critical fix during review:** the takeover's local reconcile set used to conflate \"provably dead\" (heartbeat stale — no generation will ever write this row again) with \"we just aborted it ourselves this request\" (still alive moments ago, about to run its own `onFinish`, which persists the full, correct content). Materializing the latter raced that natural write with an older debounced checkpoint and could silently overwrite fresher content with staler content. Now only provably-dead rows are materialized; just-aborted-but-alive rows get the original cheap session-row wipe and their own generation's `onFinish` persists the real content. Every reconcile/materialize call site now reports actual success (not attempted eligibility) up through `reconciled`/`remotelyReconciled`, and per-row reconciliation runs concurrently (`Promise.all`). The active-streams lazy sweep runs over the subscription-authorized row set, so a user with mere page-view access can't trigger a reap side effect for another member's private conversation.\n- Client: `ConversationMessage.status` threads to `MessageRenderer` **and** `CompactMessageRenderer` (the actual sidebar/global-assistant surface), which render an \"Interrupted\" badge + a real retry **button** at the message level, independent of which part groups exist — including for a message with zero content, or one interrupted mid-tool-call with no trailing text — de-duplicated against `TextBlock`'s own retry button for messages with real text content.\n- 100% branch coverage on the new module, gated via a per-glob vitest threshold per the epic's own constraints (\"materialize eligibility\").\n- **Scope addition (reviewer-filed, discovery-protocol class 2):** added the 3 tests D.2 (epic board) flagged as claimed-tested-but-uncovered — `previewAiUndo`'s affected-message count query and both of `executeAiUndo`'s soft-delete updates now assert the `ne(status,'streaming')` guard is actually present, not just claimed.\n\nFiled two epic-level `D —` tasks for real-but-unscheduled gaps found during review (not blocking): mention-notifications not firing for a materialized interrupted reply, and a live-tab socket-immediacy gap for the badge.\n\nThis PR went through an unusually thorough convergence pass: an internal 8-angle review followed by four rounds of external bot review (CodeRabbit + Codex) that independently confirmed and added to the findings — content-fidelity loss, badge/retry-button coupling to text-block rendering, an authorization gap in the lazy sweep, the compare-and-swap guard, the insert-timestamp ordering, per-row reconciliation-accuracy reporting, and a rowCount check for the session-settle write. All fixed, tested, and CI-green.\n\nStaging kill-mid-stream drill procedure documented on the PR board page (`epuyvd3qh3u9rj04nzc2rs4m`) per leaf 3.5 — not run from this environment.\n\n## Test plan\n- [x] `bun run typecheck` (Turbo build) — green\n- [x] `bun vitest run` across `ai/core`, `ai/streams`, chat components, chat routes, and `ai-undo-service` — 108 files / 1338 tests passing (local, non-render)\n- [x] `materialize-interrupted-stream.test.ts` (24 tests) at 100% branch/line/stmt/func coverage\n- [x] `stream-takeover.test.ts` / `stream-abort-mark.test.ts` updated for the corrected eligibility split, concurrent per-row processing, startedAt threading, and accurate reconciliation reporting\n- [x] `active-streams` lazy-sweep tests (dead row reaped, live row untouched, ambiguous-cap row untouched, unauthorized-conversation row NOT reaped)\n- [x] `MessageRenderer.interrupted.test.tsx` + `CompactMessageRenderer.interrupted.test.tsx` (badge + retry button render independent of part-group shape, no duplicate button for text-bearing messages)\n- [x] `ai-undo-service.test.ts` — 3 new D.2 tests, 23/23 passing\n- [x] CI green: Unit Tests, Lint & TypeScript Check, CodeQL, Security Test Suite, Static Security Analysis, Secret Scanning, Dependency Audit, CodeRabbit (verified across 5 consecutive pushes)\n- [ ] Staging kill-mid-stream drill (documented, not executed from this environment — see PR board page)\n\n🤖 Generated with [Claude Code](https://claude.com/claude-code)\n\nhttps://claude.ai/code/session_013c3xvumpqg33Ss6AKAP7XB\n\n\n\n[![Review Change Stack](https://storage.googleapis.com/coderabbit_public_assets/review-stack-in-coderabbit-ui.svg)](https://app.coderabbit.ai/change-stack/2witstudios/PageSpace/pull/2077?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)\n\n\n\n\n

📝 Walkthrough

\n\n## Walkthrough\n\nThe change materializes provably dead AI streams as interrupted assistant messages, reconciles them across active-stream, abort, and takeover paths, renders interruption and retry affordances, and prevents undo operations from modifying in-flight streaming rows.\n\n### Changes\n\n**Interrupted stream lifecycle**\n\n|Layer / File(s)|Summary|\n|---|---|\n|**Interrupted message materialization**
`apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`, `apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts`, `apps/web/vitest.config.ts`|Adds resilient page/global message upserts from buffered parts, protects completed rows, settles streaming sessions, broadcasts aborted completion, and enforces full coverage for the new module.|\n|**Abort and takeover reconciliation**
`apps/web/src/lib/ai/core/stream-abort-mark.ts`, `apps/web/src/lib/ai/core/stream-takeover.ts`, `apps/web/src/lib/ai/core/stream-liveness.ts`, `apps/web/src/lib/ai/core/__tests__/stream-abort-mark.test.ts`, `apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts`|Replaces direct bulk session abortion for provably dead rows with per-row materialization using each row’s parts snapshot, while retaining separate handling for fresh or live rows.|\n|**Active-stream lazy sweep**
`apps/web/src/app/api/ai/chat/active-streams/route.ts`, `apps/web/src/app/api/ai/chat/active-streams/__tests__/route.test.ts`|Authorizes rows before response filtering and asynchronously materializes authorized rows that are not live and are provably dead.|\n|**Interrupted assistant rendering**
`apps/web/src/components/ai/shared/chat/message-types.ts`, `apps/web/src/components/ai/shared/chat/MessageRenderer.tsx`, `apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx`, `apps/web/src/components/ai/shared/chat/__tests__/*Interrupted.test.tsx`|Adds the interrupted message status and renders interruption badges, optional retry guidance, and retry controls without duplicating controls when text content already exists.|\n|**Streaming-row undo protection**
`apps/web/src/services/api/__tests__/ai-undo-service.test.ts`|Adds contract coverage confirming preview and soft-delete undo predicates exclude rows with streaming status.|\n\n**Estimated code review effort:** 4 (Complex) | ~45 minutes\n\n### Sequence Diagram(s)\n\n```mermaid\nsequenceDiagram\n participant ActiveStreamsRoute\n participant StreamLiveness\n participant Materializer\n participant MessageStore\n participant SessionStore\n participant ChatRenderer\n ActiveStreamsRoute->>StreamLiveness: evaluate authorized streaming rows\n StreamLiveness->>Materializer: materialize provably dead rows\n Materializer->>MessageStore: upsert interrupted assistant message\n Materializer->>SessionStore: settle session as aborted\n MessageStore-->>ChatRenderer: provide interrupted message status\n ChatRenderer-->>ChatRenderer: render interruption and retry affordance\n```\n\n**Possibly related PRs**\n\n- [2witstudios/PageSpace#2022](https://github.com/2witstudios/PageSpace/pull/2022): Introduced the cross-instance dead-row reconciliation path rewired here to materialize interrupted messages.\n- [2witstudios/PageSpace#2018](https://github.com/2witstudios/PageSpace/pull/2018): Shares the heartbeat-driven active-stream and liveness paths updated here.\n- [2witstudios/PageSpace#2011](https://github.com/2witstudios/PageSpace/pull/2011): Shares the stream takeover and liveness filtering logic extended with lazy materialization.\n\n

\n\n\n\n\n

🚥 Pre-merge checks | ✅ 4 | ❌ 1

\n\n### ❌ Failed checks (1 warning)\n\n| Check name | Status | Explanation | Resolution |\n| :----------------: | :--------- | :----------------------------------------------------------------------------------- | :--------------------------------------------------------------------------------- |\n| Docstring Coverage | ⚠️ Warning | Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. | Write docstrings for the functions missing them to satisfy the coverage threshold. |\n\n

✅ Passed checks (4 passed)

\n\n

\n\n\n\n\n

✨ Finishing Touches

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📝 Generate docstrings

\n\n- [ ] Create stacked PR\n- [ ] Commit on current branch\n\n

🧪 Generate unit tests (beta)

\n\n- [ ] Create PR with unit tests\n- [ ] Commit unit tests in branch `pu/e2-interrupted`\n\n

\n\n

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\n\n\n_{Comment `@coderabbitai help` to get the list of available commands.}\n\n\n**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Preserve structured parts when materializing streams**\n\nWhen a dead stream snapshot contains tool/data/file parts, persisting only `payload.content` here (and in the global branch above) drops the structured content envelope that `convertDbMessageToUIMessage` relies on to reconstruct non-text parts; the stored `toolCalls`/`toolResults` JSON is ignored on the plain-text fallback path, so interrupted transcripts lose tool calls/results and later model context sees only text. Use the same structured-content persistence path as `saveMessageToDatabase`/`saveGlobalAssistantMessageToDatabase` while keeping the `status != complete` guard.\n\nUseful? React with 👍 / 👎.\n**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Show interrupted status when tools follow text**\n\nFor an interrupted assistant message whose final rendered group is a tool/file/command group (for example, the run is aborted after a tool result and before final prose), the preceding text block gets `isInterrupted={false}` because it is not the last group, and none of the non-text renderers display the badge. That makes `status: 'interrupted'` render like a normal completion in common tool-using aborts; compute the last text-group index or render a message-level interrupted footer instead.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `06e95f351a`\n \n\n

ℹ️ About Codex in GitHub

\n
\n\n[Your team has set up Codex to review pull requests in this repo](https://chatgpt.com/codex/cloud/settings/general). Reviews are triggered when you\n- Open a pull request for review\n- Mark a draft as ready\n- Comment \"@codex review\".\n\nIf Codex has suggestions, it will comment; otherwise it will react with 👍.\n\n\n\n\nCodex can also answer questions or update the PR. Try commenting \"@codex address that feedback\".\n \n

\n_🩺 Stability & Availability_ | _🔴 Critical_ | _⚡ Quick win_\n\n

🧩 Analysis chain

\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nprintf '\\n== file outline ==\\n'\nast-grep outline apps/web/src/lib/ai/core/materialize-interrupted-stream.ts --view expanded || true\n\nprintf '\\n== relevant file excerpt ==\\n'\nsed -n '1,220p' apps/web/src/lib/ai/core/materialize-interrupted-stream.ts | cat -n\n\nprintf '\\n== caller search ==\\n'\nrg -n \"materializeInterruptedStream\\(\" apps/web/src | sed -n '1,120p'\n\nprintf '\\n== buildAssistantPersistencePayload definition search ==\\n'\nrg -n \"function buildAssistantPersistencePayload|const buildAssistantPersistencePayload|buildAssistantPersistencePayload\" apps/web/src/lib apps/web/src | sed -n '1,160p'\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 16117\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\npython3 - <<'PY'\nfrom pathlib import Path\np = Path('apps/web/src/lib/ai/core/materialize-interrupted-stream.ts')\nprint('exists', p.exists(), 'lines', sum(1 for _ in p.open()))\nPY\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 181\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\necho '--- materialize-interrupted-stream.ts ---'\nsed -n '1,220p' apps/web/src/lib/ai/core/materialize-interrupted-stream.ts | cat -n\n\necho '--- caller references ---'\nrg -n \"materializeInterruptedStream\\(\" apps/web/src | sed -n '1,120p'\n\necho '--- payload builder references ---'\nrg -n \"buildAssistantPersistencePayload\" apps/web/src/lib apps/web/src | sed -n '1,160p'\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 15760\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\necho 'FILE: apps/web/src/lib/ai/core/materialize-interrupted-stream.ts'\nnl -ba apps/web/src/lib/ai/core/materialize-interrupted-stream.ts | sed -n '1,220p'\n\necho\necho 'REFERENCES: materializeInterruptedStream'\nrg -n \"materializeInterruptedStream\\(\" apps/web/src | sed -n '1,120p'\n\necho\necho 'REFERENCES: buildAssistantPersistencePayload'\nrg -n \"buildAssistantPersistencePayload\" apps/web/src | sed -n '1,160p'\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 264\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\necho '--- persistAssistantParts.ts ---'\nsed -n '1,220p' apps/web/src/lib/ai/core/persistAssistantParts.ts | cat -n\n\necho\necho '--- persistAssistantParts.test.ts ---'\nsed -n '1,220p' apps/web/src/lib/ai/core/__tests__/persistAssistantParts.test.ts | cat -n\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 5124\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\necho '--- synthesizeAssistantMessage.ts ---'\nsed -n '1,260p' apps/web/src/lib/ai/streams/synthesizeAssistantMessage.ts | cat -n\n\necho\necho '--- message-utils.ts ---'\nsed -n '1,320p' apps/web/src/lib/ai/core/message-utils.ts | cat -n\n\necho\necho '--- stream-multicast-registry.ts (part types) ---'\nsed -n '1,260p' apps/web/src/lib/ai/core/stream-multicast-registry.ts | cat -n\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 18475\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\necho '--- stream-takeover.ts ---'\nsed -n '100,190p' apps/web/src/lib/ai/core/stream-takeover.ts | cat -n\n\necho\necho '--- stream-abort-mark.ts ---'\nsed -n '260,340p' apps/web/src/lib/ai/core/stream-abort-mark.ts | cat -n\n\necho\necho '--- active-streams/route.ts ---'\nsed -n '80,140p' apps/web/src/app/api/ai/chat/active-streams/route.ts | cat -n\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 13267\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nrg -n \"parts:|materializeInterruptedStream\\(\" apps/web/src/lib/ai/core/stream-takeover.ts apps/web/src/lib/ai/core/stream-abort-mark.ts apps/web/src/app/api/ai/chat/active-streams/route.ts | sed -n '1,200p'\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 1126\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\necho '--- ai-streams schema ---'\nrg -n \"parts:\" apps/web/src packages/db/src -g '*ai-streams*' -g '*.ts' | sed -n '1,120p'\n\necho\necho '--- aiStreamSessions schema file(s) ---'\nfd -a \"ai-streams.ts\" apps packages/db/src . || true\nfd -a \"ai-streams\" apps packages/db/src . || true\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 16936\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\nrg -n \"export const aiStreamSessions|parts\" packages/db/src apps/web/src -g '*.ts' | sed -n '1,200p'\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 26952\n\n---\n\n🏁 Script executed:\n\n```shell\n#!/bin/bash\nset -euo pipefail\n\necho '--- stream-lifecycle.ts relevant slice ---'\nsed -n '240,320p' apps/web/src/lib/ai/core/stream-lifecycle.ts | cat -n\n\necho\necho '--- checkpoint-serialize.ts ---'\nsed -n '1,220p' apps/web/src/lib/ai/core/checkpoint-serialize.ts | cat -n\n\necho\necho '--- ai-streams schema ---'\nsed -n '1,220p' /home/jailuser/git/packages/db/src/schema/ai-streams.ts | cat -n\n```\n\nRepository: 2witstudios/PageSpace\n\nLength of output: 17264\n\n---\n\n\n\n

\n\n**Move payload construction inside the `try`.** `buildAssistantPersistencePayload(...)` can throw on malformed parts, and `JSON.stringify(...)` can throw on cyclic tool data; in the `void materializeInterruptedStream(...)` path that escapes logging and can become an unhandled rejection.\n\n

🤖 Prompt for AI Agents

\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@apps/web/src/lib/ai/core/materialize-interrupted-stream.ts` around lines 58 -\n64, Move the payload construction and tool-call/tool-result JSON serialization\nin materializeInterruptedStream inside the existing try block, including the\nnow-dependent initialization as needed. Ensure errors from\nbuildAssistantPersistencePayload or JSON.stringify reach the function’s existing\nerror handling so the void invocation does not produce an unhandled rejection.\n```\n\n

\n\n\n\n\n\n\n\n\n\n✅ Addressed in commit 4ff8b9c\n**Actionable comments posted: 1**\n\n

🧹 Nitpick comments (3)

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apps/web/src/lib/ai/core/stream-abort-mark.ts (1)
\n\n`290-317`: _🚀 Performance & Scalability_ | _🔵 Trivial_ | _⚡ Quick win_\n\n**Consider materializing rows concurrently instead of sequentially.**\n\nThe `status='streaming'` re-check before materializing is a solid safeguard. However, the `for` loop awaits `materializeInterruptedStream(row)` one row at a time; since this function is documented to never throw, `Promise.all(rows.map(...))` would let independent rows materialize concurrently with no loss of fault isolation. This matters because this path runs as part of `takeOverConversationStreams`'s blocking send flow (via `awaitAbortSettled` → `reconcileDeadStreamRows`).\n\n\n\n
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⚡ Proposed refactor
\n\n```diff\n- for (const row of rows) {\n- await materializeInterruptedStream(row);\n- }\n+ await Promise.all(rows.map((row) => materializeInterruptedStream(row)));\n```\n
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🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@apps/web/src/lib/ai/core/stream-abort-mark.ts` around lines 290 - 317, Update\nthe row materialization loop in reconcileDeadStreamRows to invoke\nmaterializeInterruptedStream for all fetched rows concurrently via Promise.all,\npreserving the existing no-throw fault-isolation behavior and awaiting\ncompletion before returning.\n```\n\n
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apps/web/src/lib/ai/core/stream-takeover.ts (2)
\n\n`1-1`: _🚀 Performance & Scalability_ | _🔵 Trivial_ | _⚡ Quick win_\n\n**Sequential materialization loops in both reconciliation paths.** Both `takeOverConversationStreams` and `reconcileDeadStreamRows` process independent rows with `await materializeInterruptedStream(...)` one at a time inside a `for` loop, even though the function is documented to never throw. Since both loops sit on the takeover flow that can block a user's send, switching to `Promise.all` lets independent rows materialize concurrently without losing per-row fault isolation.\n- `apps/web/src/lib/ai/core/stream-takeover.ts#L125-149`: replace the `for (const messageId of reconcile) { ... await materializeInterruptedStream(...) }` loop with `await Promise.all(reconcile.map(...))`.\n- `apps/web/src/lib/ai/core/stream-abort-mark.ts#L290-317`: replace the `for (const row of rows) { await materializeInterruptedStream(row); }` loop with `await Promise.all(rows.map((row) => materializeInterruptedStream(row)))`.\n\n
\n
🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@apps/web/src/lib/ai/core/stream-takeover.ts` at line 1, Update both\nreconciliation loops, takeOverConversationStreams and reconcileDeadStreamRows,\nto materialize independent rows concurrently with Promise.all over map\ncallbacks. Preserve materializeInterruptedStream’s per-row fault isolation and\nexisting behavior while removing sequential awaits from each for loop.\n```\n\n
\n\n\n\n---\n\n`125-149`: _🚀 Performance & Scalability_ | _🔵 Trivial_ | _⚡ Quick win_\n\n**Same sequential-materialization pattern as `stream-abort-mark.ts`.**\n\nThis loop awaits `materializeInterruptedStream` one row at a time on the send-blocking takeover path. Since the function is documented to never throw, running these concurrently would reduce latency on the (rare but real) crashed-stream takeover path.\n\n\n\n
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⚡ Proposed refactor
\n\n```diff\n- const rowById = new Map(rows.map((r) => [r.messageId, r]));\n- for (const messageId of reconcile) {\n- const row = rowById.get(messageId);\n- if (!row) continue;\n- await materializeInterruptedStream({\n- messageId,\n- channelId,\n- conversationId,\n- userId: row.userId,\n- parts: row.parts,\n- });\n- }\n+ const rowById = new Map(rows.map((r) => [r.messageId, r]));\n+ await Promise.all(reconcile.map((messageId) => {\n+ const row = rowById.get(messageId);\n+ if (!row) return undefined;\n+ return materializeInterruptedStream({\n+ messageId,\n+ channelId,\n+ conversationId,\n+ userId: row.userId,\n+ parts: row.parts,\n+ });\n+ }));\n```\n
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\n
🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@apps/web/src/lib/ai/core/stream-takeover.ts` around lines 125 - 149, Update\nthe reconciliation loop in the takeover path to materialize all rows\nconcurrently rather than awaiting each materializeInterruptedStream call\nsequentially. Preserve the existing row lookup and skip-missing-row behavior,\nand await completion of the full batch before continuing.\n```\n\n
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🤖 Prompt for all review comments with AI agents

\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nInline comments:\nIn `@apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`:\n- Around line 58-64: Move the payload construction and tool-call/tool-result\nJSON serialization in materializeInterruptedStream inside the existing try\nblock, including the now-dependent initialization as needed. Ensure errors from\nbuildAssistantPersistencePayload or JSON.stringify reach the function’s existing\nerror handling so the void invocation does not produce an unhandled rejection.\n\n---\n\nNitpick comments:\nIn `@apps/web/src/lib/ai/core/stream-abort-mark.ts`:\n- Around line 290-317: Update the row materialization loop in\nreconcileDeadStreamRows to invoke materializeInterruptedStream for all fetched\nrows concurrently via Promise.all, preserving the existing no-throw\nfault-isolation behavior and awaiting completion before returning.\n\nIn `@apps/web/src/lib/ai/core/stream-takeover.ts`:\n- Line 1: Update both reconciliation loops, takeOverConversationStreams and\nreconcileDeadStreamRows, to materialize independent rows concurrently with\nPromise.all over map callbacks. Preserve materializeInterruptedStream’s per-row\nfault isolation and existing behavior while removing sequential awaits from each\nfor loop.\n- Around line 125-149: Update the reconciliation loop in the takeover path to\nmaterialize all rows concurrently rather than awaiting each\nmaterializeInterruptedStream call sequentially. Preserve the existing row lookup\nand skip-missing-row behavior, and await completion of the full batch before\ncontinuing.\n```\n\n

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🪄 Autofix (Beta)

\n\nFix all unresolved CodeRabbit comments on this PR:\n\n- [ ] Push a commit to this branch (recommended)\n- [ ] Create a new PR with the fixes\n\n

\n\n---\n\n

ℹ️ Review info

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⚙️ Run configuration

\n\n**Configuration used**: defaults\n\n**Review profile**: CHILL\n\n**Plan**: Pro\n\n**Run ID**: `a434bdf7-a8e1-4a87-aba4-2c614fc4522b`\n\n

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📥 Commits

\n\nReviewing files that changed from the base of the PR and between 117d33d577fd80c760fb69aa66f4a7f481ee276e and 06e95f351a860d760f9f316a97e4ba4e9ad976bf.\n\n

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📒 Files selected for processing (13)

\n\n* `apps/web/src/app/api/ai/chat/active-streams/__tests__/route.test.ts`\n* `apps/web/src/app/api/ai/chat/active-streams/route.ts`\n* `apps/web/src/components/ai/shared/chat/MessageRenderer.tsx`\n* `apps/web/src/components/ai/shared/chat/__tests__/MessageRenderer.interrupted.test.tsx`\n* `apps/web/src/components/ai/shared/chat/message-types.ts`\n* `apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts`\n* `apps/web/src/lib/ai/core/__tests__/stream-abort-mark.test.ts`\n* `apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts`\n* `apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`\n* `apps/web/src/lib/ai/core/stream-abort-mark.ts`\n* `apps/web/src/lib/ai/core/stream-liveness.ts`\n* `apps/web/src/lib/ai/core/stream-takeover.ts`\n* `apps/web/vitest.config.ts`\n\n

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\n\n\nFixed in commit 4ff8b9c72 (pushed before this comment was surfaced to me): `materializeInterruptedStream` now runs `payload.uiMessage.parts` through the same `extractStructuredContentFromParts` pipeline `saveMessageToDatabase`/`saveGlobalAssistantMessageToDatabase` use, instead of persisting `payload.content` (plain concatenated text) directly. Both the `chatMessages` and `messages` branches now use `structuredContent`, so tool calls/results, file parts, and part ordering survive materialization and reload correctly via `convertDbMessageToUIMessage`. Added a regression test (`materialize-interrupted-stream.test.ts`, \"builds message content via the same structured-content pipeline...\") asserting the persisted content is the structured JSON envelope, not flat text. Leaving this thread open for reviewer verification per this session's convention of not self-resolving fixes made during the same pass.\nFixed in commit 4ff8b9c72 (pushed before this comment was surfaced to me): the interrupted badge was moved OUT of `TextBlock`'s render (which only fires for the message's text-group blocks) and now renders at the message level in `MessageRenderer.tsx`, right after the `groupedParts.map(...)` loop closes — unconditional on which kind of group is last (text, tool-run, tool, file, or command). Added a regression test (`MessageRenderer.interrupted.test.tsx`, \"given an interrupted message with ONLY a tool part (no text ever arrived), still shows the badge\") that would have caught the original bug. Also discovered and fixed the same gap in `CompactMessageRenderer.tsx` (the actual sidebar/global-assistant surface), which had never received the badge treatment at all in the first pass — added parity coverage there too (`CompactMessageRenderer.interrupted.test.tsx`). Leaving this thread open for reviewer verification per this session's convention of not self-resolving fixes made during the same pass.\nAcknowledging CodeRabbit's 3 nitpick suggestions (sequential-vs-concurrent materialization in `stream-abort-mark.ts`'s `reconcileDeadStreamRows` and `stream-takeover.ts`'s reconcile loop) — these were already fixed in commit 4ff8b9c72 (pushed as part of the same convergence pass, before these comments were surfaced to me): both loops now use `Promise.all` over independent rows instead of sequential `for...await`, since `materializeInterruptedStream` never throws and each row is independent. No separate review thread exists for these (they were nitpicks inside the review summary, not inline comments), so acknowledging here instead.\n@codex review\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `4ff8b9c723`\n \n\n

ℹ️ About Codex in GitHub

\n**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Don't overwrite interrupted rows during materialization**\n\nWhen the normal abort/onFinish path has already saved the assistant row as `status='interrupted'` but the fire-and-forget `ai_stream_sessions` terminal update fails, the stream row remains eligible for a later dead-row sweep. This guard, and the identical global-table guard above, only protects `complete`, so the sweep can overwrite that terminal interrupted message (potentially fuller onFinish content or a user edit) with the older debounced `parts` snapshot. Restrict the conflict update to the streaming placeholder instead of all non-complete rows.\n\nUseful? React with 👍 / 👎.\n**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Use stream start time for inserted materialized messages**\n\nWhen this materializer has to insert a missing assistant row, such as a crash after the stream-session insert but before the placeholder message insert, `createdAt: now` timestamps the recovered reply at reap/takeover time. A user's follow-up message is saved before takeover runs, so the recovered assistant response can sort after that follow-up instead of at its original stream position. Carry the stream row's `startedAt` into materialization and use it for the inserted message timestamp.\n\nUseful? React with 👍 / 👎.\n\n\n

🧹 Nitpick comments (1)

\n\n
\n
apps/web/src/components/ai/shared/chat/MessageRenderer.tsx (1)
\n\n`447-455`: _📐 Maintainability & Code Quality_ | _🔵 Trivial_ | _⚡ Quick win_\n\n**Provide an explicit accessible name for the icon-only retry button.** \n\nWhile the `title` attribute gives a visual tooltip and can sometimes act as a fallback, explicitly setting an `aria-label` ensures all screen readers can consistently identify the control.\n- `apps/web/src/components/ai/shared/chat/MessageRenderer.tsx#L447-L455`: Add `aria-label=\"Retry this message\"` to the Button props.\n- `apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx#L445-L453`: Add `aria-label=\"Retry this message\"` to the Button props here as well.\n\n
\n
🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@apps/web/src/components/ai/shared/chat/MessageRenderer.tsx` around lines 447\n- 455, Add an explicit aria-label of “Retry this message” to the icon-only retry\nButton in MessageRenderer.tsx at lines 447-455 and CompactMessageRenderer.tsx at\nlines 445-453, while preserving the existing title and retry behavior.\n```\n\n
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🤖 Prompt for all review comments with AI agents

\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nNitpick comments:\nIn `@apps/web/src/components/ai/shared/chat/MessageRenderer.tsx`:\n- Around line 447-455: Add an explicit aria-label of “Retry this message” to the\nicon-only retry Button in MessageRenderer.tsx at lines 447-455 and\nCompactMessageRenderer.tsx at lines 445-453, while preserving the existing title\nand retry behavior.\n```\n\n

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ℹ️ Review info

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⚙️ Run configuration

\n\n**Configuration used**: defaults\n\n**Review profile**: CHILL\n\n**Plan**: Pro\n\n**Run ID**: `631821f3-2f9a-4cca-b97b-7ec984a83f61`\n\n

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📥 Commits

\n\nReviewing files that changed from the base of the PR and between 06e95f351a860d760f9f316a97e4ba4e9ad976bf and 9470bd29afdb052e723641f710f430a7a528631a.\n\n

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📒 Files selected for processing (12)

\n\n* `apps/web/src/app/api/ai/chat/active-streams/__tests__/route.test.ts`\n* `apps/web/src/app/api/ai/chat/active-streams/route.ts`\n* `apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx`\n* `apps/web/src/components/ai/shared/chat/MessageRenderer.tsx`\n* `apps/web/src/components/ai/shared/chat/__tests__/CompactMessageRenderer.interrupted.test.tsx`\n* `apps/web/src/components/ai/shared/chat/__tests__/MessageRenderer.interrupted.test.tsx`\n* `apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts`\n* `apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts`\n* `apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`\n* `apps/web/src/lib/ai/core/stream-abort-mark.ts`\n* `apps/web/src/lib/ai/core/stream-takeover.ts`\n* `apps/web/src/services/api/__tests__/ai-undo-service.test.ts`\n\n

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🚧 Files skipped from review as they are similar to previous changes (7)

\n\n* apps/web/src/app/api/ai/chat/active-streams/route.ts\n* apps/web/src/app/api/ai/chat/active-streams/__tests__/route.test.ts\n* apps/web/src/lib/ai/core/stream-abort-mark.ts\n* apps/web/src/lib/ai/core/stream-takeover.ts\n* apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts\n* apps/web/src/lib/ai/core/materialize-interrupted-stream.ts\n* apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts\n\n

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\n\n\nFixed in commit c6e046b51 (pushed before this comment was surfaced to me): tightened the guard from `ne(status, 'complete')` to `eq(status, 'streaming')` on both the `messages` and `chat_messages` conflict-update branches. This makes it a true compare-and-swap — a row leaves 'streaming' exactly once, so this can never re-touch an already-terminal row whether it landed at 'complete' or 'interrupted' by the normal path. Added regression tests in `materialize-interrupted-stream.test.ts` simulating the guard against an already-'interrupted' row (in addition to the existing already-'complete' case) confirming the write is a no-op. Leaving open for reviewer verification per this session's convention.\nFixed in commit c6e046b51 (pushed before this comment was surfaced to me): added `startedAt: Date` to `MaterializableStreamRow` and used it as `createdAt` for the defensive insert-if-missing branch on both table variants, instead of reap-time `now`. Threaded `startedAt` through all three call sites — `stream-takeover.ts` and the active-streams lazy sweep already had it in hand from their existing SELECTs; added it as a new selected column to `reconcileDeadStreamRows`'s query in `stream-abort-mark.ts`. Added a dedicated test (`materialize-interrupted-stream.test.ts`, \"uses the stream's actual start time, not reap time, as createdAt for a newly-inserted row\") plus a threading test in `stream-takeover.test.ts` confirming the row's real `startedAt` reaches the call, not takeover time. Leaving open for reviewer verification per this session's convention.\n\nAcknowledging CodeRabbit's accessibility nitpick (icon-only retry button relying on `title` alone) — fixed in commit fb8f3349c: added explicit `aria-label=\"Retry this message\"` to both MessageRenderer.tsx and CompactMessageRenderer.tsx's new retry buttons.\n@codex review\n**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Report dead rows reconciled only after materialization succeeds**\n\nWhen a provably-dead row reaches this path and `materializeInterruptedStream` cannot write the interrupted message, that helper catches/logs and returns without settling the session row, leaving it `status='streaming'`. This `Promise.all` has no success signal, but the function later includes every id from `reconcile` in `allReconciled`, so a transient DB/write failure is reported and logged as successfully reconciled even though the row remains a retryable ghost; the previous update path returned `reconciled: []` on this partial failure. Please have materialization return whether it actually settled before counting the id as reconciled.\n\nUseful? React with 👍 / 👎.\n\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `fb8f3349c9`\n \n\n

ℹ️ About Codex in GitHub

\nFixed in commit 9b87730ac (pushed before this comment was surfaced to me): `materializeInterruptedStream` now returns `Promise` (true only if both the message write and the session-row settle succeeded), and the `Promise.all` in this reconcile path now filters `provablyDead` by actual success before contributing to `locallyReconciled`. Also extended the same fix to the sibling paths this exact gap affected: `reconcileDeadStreamRows` (stream-abort-mark.ts) now returns `Promise` — the messageIds it actually materialized — and the cross-instance branch here now sets `remotelyReconciled` from that return value instead of from `decideAbortOutcome`'s eligibility judgment. Added regression tests for partial-failure batches in both `stream-takeover.test.ts` and `stream-abort-mark.test.ts`. Leaving open for reviewer verification per this session's convention.\n\n\n\n> [!CAUTION]\n> Some comments are outside the diff and can’t be posted inline due to platform limitations.\n> \n> \n> \n>

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⚠️ Outside diff range comments (1)

\n> \n>
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apps/web/src/lib/ai/core/materialize-interrupted-stream.ts (1)
\n> \n> `174-205`: _🗄️ Data Integrity & Integration_ | _🟡 Minor_ | _⚡ Quick win_\n> \n> **apps/web/src/lib/ai/core/materialize-interrupted-stream.ts:174-205 — Treat a zero-row settle as unsuccessful** \n> `db.update(...).where(...)` can return 0 when another path already terminalized the row. Check `rowCount` and only return `true` when this pass actually settles the session; add a regression test for the zero-row case.\n> \n>
\n>
🤖 Prompt for AI Agents
\n> \n> ```\n> Verify each finding against current code. Fix only still-valid issues, skip the\n> rest with a brief reason, keep changes minimal, and validate.\n> \n> In `@apps/web/src/lib/ai/core/materialize-interrupted-stream.ts` around lines 174\n> - 205, Update the session-settling update in materializeInterruptedStream to\n> inspect its affected-row count and set settled to false when the conditional\n> update changes zero rows, including when another path already terminalized the\n> session. Preserve the existing exception handling and return settled only as\n> true when this invocation actually updates the row, and add a regression test\n> covering the zero-row case.\n> ```\n> \n>
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🤖 Prompt for all review comments with AI agents

\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nOutside diff comments:\nIn `@apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`:\n- Around line 174-205: Update the session-settling update in\nmaterializeInterruptedStream to inspect its affected-row count and set settled\nto false when the conditional update changes zero rows, including when another\npath already terminalized the session. Preserve the existing exception handling\nand return settled only as true when this invocation actually updates the row,\nand add a regression test covering the zero-row case.\n```\n\n

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ℹ️ Review info

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⚙️ Run configuration

\n\n**Configuration used**: defaults\n\n**Review profile**: CHILL\n\n**Plan**: Pro\n\n**Run ID**: `d5aa5a9e-984d-4360-bd8f-804ac4497c18`\n\n

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📥 Commits

\n\nReviewing files that changed from the base of the PR and between fb8f3349c9af6a002f41e4c0acbbd14adf3e4374 and 9b87730ac0ccfc12f4a237c9b1387f2c37e4489e.\n\n

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📒 Files selected for processing (7)

\n\n* `apps/web/src/lib/ai/core/__tests__/abort-stream-anywhere-pending.test.ts`\n* `apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts`\n* `apps/web/src/lib/ai/core/__tests__/stream-abort-mark.test.ts`\n* `apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts`\n* `apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`\n* `apps/web/src/lib/ai/core/stream-abort-mark.ts`\n* `apps/web/src/lib/ai/core/stream-takeover.ts`\n\n

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🚧 Files skipped from review as they are similar to previous changes (5)

\n\n* apps/web/src/lib/ai/core/stream-abort-mark.ts\n* apps/web/src/lib/ai/core/__tests__/stream-abort-mark.test.ts\n* apps/web/src/lib/ai/core/stream-takeover.ts\n* apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts\n* apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts\n\n

\n\n

\n\n\nAcknowledging CodeRabbit's outside-diff-range finding on `materialize-interrupted-stream.ts` (session-settle UPDATE treated as successful even when it matches zero rows) — fixed in commit 2f11e1f20: now checks `(result.rowCount ?? 0) > 0`, matching the existing conditional-update pattern in `compaction-repository.ts`. Added regression tests for both the zero-rowCount case and the defensive `?? 0` fallback.",{},"created",1784108773.3392353,"Completing the task","event_type","info",{"_92":410,"_96":93,"_402":1962},{"_92":852,"_853":854},"partial_repo_snapshot","files",[855,856,857,858,859],{"_164":1814,"_861":-5,"_862":1815,"_864":-5},{"_164":1580,"_861":-5,"_862":1581,"_864":-5},{"_164":1305,"_861":-5,"_862":1306,"_864":-5},{"_164":1228,"_861":-5,"_862":1229,"_864":-5},{"_164":860,"_861":-5,"_862":863,"_864":-5},"apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx","contents","line_range_contents",[865],"missing_reason",{"_866":566,"_867":868,"_402":869,"_870":59},"line_range_start","line_range_end",472,[871,872,873,874,875,876,877,878,879,880,881,882,883,884,885,886,887,888,889,890,203,891,892,893,894,895,896,897,898,899,900,901,902,903,904,905,906,203,907,908,909,910,911,912,913,914,915,916,917,918,919,920,921,922,923,924,925,926,203,927,203,928,929,930,931,932,933,934,935,936,937,938,939,940,941,203,942,943,944,945,946,947,948,949,940,950,951,952,953,954,955,956,957,939,958,959,960,961,962,963,964,965,966,967,968,969,970,971,972,973,974,975,976,939,977,941,978,979,980,203,981,203,982,983,984,985,986,987,988,989,990,904,905,906,203,907,991,992,910,993,994,917,918,919,920,995,996,997,924,925,998,999,1000,1001,1002,203,1003,1004,1003,1005,1006,1007,1008,1009,1010,1011,1012,1013,1006,1007,1014,1015,1016,1011,1017,1018,203,1019,1020,203,1021,1022,1023,1024,1025,1026,1027,1028,1029,1030,1031,1032,1033,1034,1035,1036,1037,203,1038,1039,1040,1041,1036,1042,203,1043,1039,1044,203,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1031,1058,203,1059,1060,1061,1031,1058,203,1062,1063,203,1064,1065,1066,1058,1067,203,1068,1023,1069,1070,1071,1072,1073,1074,1075,1032,1076,1036,1037,203,1003,1077,1003,1078,1079,203,1080,1081,1082,1083,1084,979,203,1085,1086,203,1087,1088,1089,1090,1036,1037,203,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1031,1036,1037,203,1101,1102,1103,1036,1037,203,1003,1104,1003,1105,1106,1107,1108,1109,1110,1111,1112,1113,1114,1114,1115,967,939,940,1074,1036,203,1116,1107,1108,1117,1118,1119,967,939,940,1074,1036,203,1120,1121,1122,1123,1124,1125,1126,1115,967,939,1127,1128,1129,1130,1131,1132,1133,1134,1135,1136,1137,203,1003,1138,1003,1139,203,928,1140,1141,1142,1143,1144,203,1145,1146,1147,1148,1149,1150,1151,1152,1153,1154,1155,1156,1157,1158,1159,1160,1161,1162,1163,1164,975,1165,1166,1145,1167,1168,1148,974,975,1165,1169,1145,1170,1171,1172,1173,1174,1175,1176,1115,1165,1177,1145,1178,1179,1180,1181,1182,1183,1184,1185,1186,1187,1188,1189,1176,1115,1165,1190,1145,1191,1192,1115,1165,1193,1194,1195,1196,1197,1198,1199,1200,1201,1202,976,1203,1204,1205,1206,1207,1208,1209,1210,1211,1212,1213,1214,1215,1216,1217,976,939,1218,1219,203,1220,1221,1222,1223,1224,1225,1134,941,1226,979,980,203,1227],"contains_end_of_file","import React, { useState, useEffect } from 'react';","import { RotateCw } from 'lucide-react';","import { Button } from '@/components/ui/button';","import { CompactToolCallRenderer, CompactToolRunGroup } from './tool-calls';","import { StreamingMarkdown } from './StreamingMarkdown';","import { MessageActionButtons } from './MessageActionButtons';","import { MessageEditor } from './MessageEditor';","import { DeleteMessageDialog } from './DeleteMessageDialog';","import { CompactTodoListMessage } from './CompactTodoListMessage';","import { useSocket } from '@/hooks/useSocket';","import { useAuth } from '@/hooks/useAuth';","import { ErrorBoundary } from '@/components/ai/shared/ErrorBoundary';","import { patch, fetchWithAuth } from '@/lib/auth/auth-fetch';","import { useGroupedParts } from './useGroupedParts';","import { useToolCallOpenState } from './useToolCallOpenState';","import type { ConversationMessage, TextPart } from './message-types';","import { isTextGroupPart, isProcessedToolPart, isFileGroupPart, isCommandExecutionPart, isToolRunGroupPart } from './message-types';","import { CommandExecutionIndicator } from '@/components/messages/CommandExecutionIndicator';","import { ImageMessageContent } from './ImageMessageContent';","import styles from './CompactMessageRenderer.module.css';","interface CompactTextBlockProps {"," parts: TextPart[];"," role: 'user' | 'assistant' | 'system';"," senderName?: string;"," createdAt?: Date;"," editedAt?: Date | null;"," onEdit?: () => void;"," onDelete?: () => void;"," onRetry?: () => void;"," onUndoFromHere?: () => void;"," isEditing?: boolean;"," onSaveEdit?: (newContent: string) => Promise;"," onCancelEdit?: () => void;"," /** Whether this message is currently being streamed (for progressive markdown rendering) */"," isStreaming?: boolean;","}","/**"," * Compact text block for sidebar - minimal margins and padding"," * Memoized to prevent unnecessary re-renders during streaming"," */","const CompactTextBlock: React.FC = React.memo(({"," parts,"," role,"," senderName,"," createdAt,"," editedAt,"," onEdit,"," onDelete,"," onRetry,"," onUndoFromHere,"," isEditing,"," onSaveEdit,"," onCancelEdit,"," isStreaming = false","}) => {"," const content = parts.map(part => part.text).join('');"," if (!content.trim() && !isEditing) return null;"," return ("," "," {role === 'user' && (","

","

"," {senderName}","

","

"," )}"," {isEditing && onSaveEdit && onCancelEdit ? (","

"," "," ) : ("," <>","

"," "," {/* Always show footer with buttons; timestamp only when createdAt exists */}","

","

"," {createdAt && ("," <>"," {new Date(createdAt).toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' })}"," {editedAt && (edited)}"," "," )}","

"," {onEdit && onDelete && !isEditing && ("," "," )}"," ","

"," );","});","CompactTextBlock.displayName = 'CompactTextBlock';","interface CompactMessageRendererProps {"," message: ConversationMessage;"," onEdit?: (messageId: string, newContent: string) => Promise;"," onDelete?: (messageId: string) => Promise;"," onRetry?: (messageId: string) => void;"," onUndoFromHere?: (messageId: string) => void;"," onTaskUpdate?: (taskId: string, newStatus: 'pending' | 'in_progress' | 'completed' | 'blocked') => void;"," isLastAssistantMessage?: boolean;"," isLastUserMessage?: boolean;"," * Compact message renderer for sidebar - optimized for narrow width."," * Supports both standard messages and todo_list messages with real-time socket updates.","export const CompactMessageRenderer: React.FC = React.memo(({"," message,"," onTaskUpdate,"," isLastAssistantMessage = false,"," isLastUserMessage = false,"," const { user } = useAuth();"," const [isEditing, setIsEditing] = useState(false);"," const [showDeleteDialog, setShowDeleteDialog] = useState(false);"," const [isDeleting, setIsDeleting] = useState(false);"," const canRetry = Boolean(onRetry) && (isLastAssistantMessage || isLastUserMessage);"," // ============================================"," // Todo List State & Socket (only for todo_list messages)"," const [tasks, setTasks] = useState>([]);"," const [taskList, setTaskList] = useState<{"," description?: string;"," status: string;"," createdAt?: Date;"," } | null>(null);"," const [isLoadingTasks, setIsLoadingTasks] = useState(false);"," // Socket connection (singleton pattern) - only used for todo_list messages"," const socket = useSocket();"," const loadTasksForMessage = async (messageId: string) => {"," setIsLoadingTasks(true);"," try {"," const response = await fetchWithAuth(`/api/ai/tasks/by-message/${messageId}`);"," if (response.ok) {"," const data = await response.json();"," setTasks(data.tasks || []);"," setTaskList(data.taskList);"," } else {"," console.error('Failed to load tasks for message:', messageId);"," }"," } catch (error) {"," console.error('Error loading tasks:', error);"," } finally {"," setIsLoadingTasks(false);"," }"," };"," // Load tasks for todo_list messages"," useEffect(() => {"," if (message.messageType === 'todo_list' && message.id) {"," loadTasksForMessage(message.id);"," }, [message.messageType, message.id]);"," // Listen for real-time task updates"," if (!socket || message.messageType !== 'todo_list') return;"," const handleTaskUpdate = (payload: {"," taskId: string;"," data: { newStatus: 'pending' | 'in_progress' | 'completed' | 'blocked' };"," }) => {"," const taskInOurMessage = tasks.find(task => task.id === payload.taskId);"," if (taskInOurMessage) {"," setTasks(prevTasks =>"," prevTasks.map(task =>"," task.id === payload.taskId"," ? { ...task, status: payload.data.newStatus, updatedAt: new Date() }"," : task"," )"," );"," };"," const handleTaskListUpdate = (payload: { taskListId: string }) => {"," if (taskList && payload.taskListId === taskList.id) {"," loadTasksForMessage(message.id);"," socket.on('task:task_updated', handleTaskUpdate);"," socket.on('task:task_list_created', handleTaskListUpdate);"," return () => {"," socket.off('task:task_updated', handleTaskUpdate);"," socket.off('task:task_list_created', handleTaskListUpdate);"," }, [socket, message.messageType, message.id, tasks, taskList]);"," const handleTaskStatusUpdate = async (taskId: string, newStatus: 'pending' | 'in_progress' | 'completed' | 'blocked') => {"," await patch(`/api/ai/tasks/${taskId}/status`, { status: newStatus });"," setTasks(prevTasks =>"," prevTasks.map(task =>"," task.id === taskId ? { ...task, status: newStatus, updatedAt: new Date() } : task"," )"," );"," onTaskUpdate?.(taskId, newStatus);"," console.error('Error updating task:', error);"," // Standard Message Rendering"," const groupedParts = useGroupedParts(message.parts);"," const { getToolCallOpen, setToolCallOpen } = useToolCallOpenState();"," const isInterrupted = message.role === 'assistant' && message.status === 'interrupted';"," // CompactTextBlock already renders its own retry button whenever it has non-empty content —"," // this guards the message-level retry button below from double-rendering for that case."," const hasNonEmptyTextBlock = groupedParts.some("," (g) => isTextGroupPart(g) && g.parts.map((p) => p.text).join('').trim() !== '',"," const createdAt = message.createdAt;"," const editedAt = message.editedAt;"," const handleSaveEdit = async (newContent: string) => {"," if (onEdit) {"," await onEdit(message.id, newContent);"," setIsEditing(false);"," const handleDelete = async () => {"," if (onDelete) {"," setIsDeleting(true);"," try {"," await onDelete(message.id);"," setShowDeleteDialog(false);"," } catch (error) {"," console.error('Failed to delete message:', error);"," } finally {"," setIsDeleting(false);"," const handleRetry = () => {"," if (onRetry && canRetry) {"," onRetry(message.id);"," // Render todo_list messages"," if (message.messageType === 'todo_list') {"," if (isLoadingTasks) {"," return (","

","

"," if (!taskList || tasks.length === 0) {","

","

"," No tasks found for this todo list."," return ("," ","

","

"," Failed to load TODO list. Please refresh the page."," }"," >"," "," "," );"," }"," // Render standard messages"," const hasToolCalls = groupedParts.some(g => isProcessedToolPart(g) || isToolRunGroupPart(g));"," <>","

"," {groupedParts.map((group, index) => {"," if (isTextGroupPart(group)) {"," const isLastTextBlock = index === groupedParts.length - 1;"," return ("," setIsEditing(true) : undefined}"," onDelete={onDelete ? () => setShowDeleteDialog(true) : undefined}"," onRetry={canRetry ? handleRetry : undefined}"," onUndoFromHere={"," message.role === 'assistant' && hasToolCalls && onUndoFromHere"," ? () => onUndoFromHere(message.id)"," : undefined"," }"," isEditing={isEditing}"," onSaveEdit={handleSaveEdit}"," onCancelEdit={() => setIsEditing(false)}"," isStreaming={isStreaming}"," );"," } else if (isFileGroupPart(group)) {"," "," "," } else if (isProcessedToolPart(group)) {","

"," setToolCallOpen(group.toolCallId, next)}"," } else if (isCommandExecutionPart(group)) {","

"," "," }"," return null;"," })}"," {isInterrupted && (","

"," "," Interrupted"," "," {canRetry && ("," Cut short — retry to continue."," {/* CompactTextBlock is the only other place a retry button lives, and it only"," renders for non-empty content — this is the sole retry control for an"," empty/tool-only interrupted message. Gated on !hasNonEmptyTextBlock so a message"," that DID stream real text doesn't show the button twice. */}"," {canRetry && !hasNonEmptyTextBlock && ("," "," "," "," )}","

"," {onDelete && ("," ","CompactMessageRenderer.displayName = 'CompactMessageRenderer';","apps/web/src/components/ai/shared/chat/MessageRenderer.tsx",[1230],{"_866":566,"_867":1231,"_402":1232,"_870":59},474,[871,1233,872,873,1234,203,875,876,877,878,1235,880,881,882,883,884,885,886,887,889,888,203,1236,892,893,894,895,896,897,898,899,900,901,902,903,904,905,906,203,907,1237,910,1238,912,913,914,915,916,917,918,919,920,921,922,923,924,925,926,203,927,203,928,929,1239,1240,1241,933,934,935,1242,1243,938,939,940,941,203,942,1244,1245,1246,1247,1134,950,951,1248,1249,1250,1251,1164,1252,975,967,939,958,1253,1254,961,962,1255,1256,965,966,967,968,969,970,971,972,973,975,976,939,977,941,978,979,980,203,1257,203,1258,983,984,985,986,987,988,989,990,904,905,1259,1260,906,203,907,1261,992,1262,910,1263,994,917,918,919,920,995,996,997,1264,1265,1266,925,998,999,1000,1001,1002,203,1003,1004,1003,1005,1006,1007,1008,1009,1010,1011,1012,1013,1006,1007,1014,1015,1016,1011,1017,1018,203,1019,1020,203,1021,1022,1023,1024,1025,1026,1027,1028,1029,1030,1031,1032,1033,1034,1035,1036,1037,203,1038,1039,1040,1041,1036,1042,203,1043,1039,1044,203,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1031,1058,203,1059,1060,1061,1031,1058,203,1062,1063,203,1064,1065,1066,1058,1067,203,1068,1023,1069,1070,1071,1072,1073,1074,1075,1032,1076,1036,1037,203,1003,1077,1003,1078,1079,203,1267,1268,203,1080,1269,1270,1271,1272,1083,1084,979,203,1085,1086,203,1087,1088,1089,1090,1036,1037,203,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1031,1036,1037,203,1101,1102,1103,1036,1037,203,1003,1104,1003,1105,1106,1107,1273,1274,1110,1275,1276,1277,1278,1278,1278,1115,967,939,940,1074,1036,203,1116,1107,1273,1279,1280,1119,967,939,940,1074,1036,203,1120,1121,1122,1281,1282,1283,1126,1115,967,939,1127,1128,1284,1130,1131,1132,1133,1134,1135,1136,1137,203,1003,1138,1003,928,1140,1285,1142,1143,1144,203,1145,1286,1147,1148,1149,1150,1151,1152,1153,1154,1155,1287,1161,1162,1163,1164,975,1165,1166,1145,1167,1168,1148,975,1165,1169,1145,1288,1289,1172,1173,1174,1175,1176,1115,1165,1177,1145,1290,1291,1180,1181,1182,1183,1184,1185,1186,1187,1292,1293,1176,1115,1165,1190,1145,1294,1192,1115,1165,1193,1194,1195,1196,1295,1296,1199,1200,1201,1297,976,1298,1299,1300,1301,1207,1208,1209,1210,1211,1302,1213,1214,1215,1303,1217,976,939,1218,1219,203,1220,1221,1222,1223,1224,1225,1134,941,1226,979,980,203,1304],"import { cn } from '@/lib/utils';","import { ToolCallRenderer, ToolRunGroup } from './tool-calls';","import { TodoListMessage } from './TodoListMessage';","interface TextBlockProps {"," * Renders a group of consecutive text parts as a single block","const TextBlock: React.FC = React.memo(({"," className={`group relative mb-1 ${role === 'user'"," ? 'p-3 rounded-lg bg-primary/10 dark:bg-accent/20 ml-2 sm:ml-8'"," : 'mr-2 sm:mr-8'","

","

"," ","

"," {new Date(createdAt).toLocaleTimeString()}"," {editedAt && (edited)}","TextBlock.displayName = 'TextBlock';","interface MessageRendererProps {"," isHighlighted?: boolean;"," isCurrentMatch?: boolean;"," * Renders a UIMessage with parts in chronological order."," * Groups consecutive text parts together while preserving tool call positions.","export const MessageRenderer: React.FC = React.memo(({"," isStreaming = false,"," isHighlighted = false,"," isCurrentMatch = false,"," // Check if this message has tool calls (for showing undo button on assistant messages)"," const hasToolCalls = message.role === 'assistant' && groupedParts.some(g => isProcessedToolPart(g) || isToolRunGroupPart(g));"," // TextBlock already renders its own retry button in its footer whenever it has non-empty"," // content — the message-level retry button below exists ONLY for the case TextBlock can't"," // cover (empty or tool-only content, where no TextBlock ever renders). Without this check, a"," // normal interrupted message with real text would show two retry buttons.","

","

"," "," onUndoFromHere(message.id) : undefined}","

"," "," setToolCallOpen(group.toolCallId, next)}","

","

"," "," Generation was cut short — retry to continue."," {/* An interrupted message with empty or tool-only content never renders a TextBlock"," (its footer is where the retry button normally lives) — this is the only retry"," control such a message gets. Gated on !hasNonEmptyTextBlock so a message that DID"," stream real text before dying doesn't show this button twice. */}"," className=\"h-5 px-1\""," ","MessageRenderer.displayName = 'MessageRenderer';","apps/web/src/lib/ai/core/stream-abort-mark.ts",[1307],{"_866":566,"_867":1308,"_402":1309,"_870":59},396,[1310,1311,1312,1313,1314,1315,1316,1317,1318,1314,1319,1320,1321,1322,203,907,1323,1324,1325,1326,1327,1328,1324,1329,1330,1331,1332,1324,1333,1324,1334,1335,1336,1324,1337,1338,1339,1340,1341,1324,1342,910,203,1343,203,907,1344,1324,1345,1346,1347,1348,1324,1349,1350,1351,910,1352,1353,1354,1355,1356,1357,1358,1359,1360,1361,1362,1363,1364,1365,1366,906,203,1367,1368,1369,1370,1371,1372,1373,1374,1375,1376,1377,1378,1379,1380,1381,1382,1383,1384,1385,1386,1387,1388,1389,1390,1391,1392,1393,203,1394,1037,203,1395,1396,1397,1398,1399,1400,1401,1402,1403,1404,1405,1396,1406,1407,1408,1396,1409,1410,1411,1412,1413,1414,1415,203,1416,1417,1418,1419,203,1420,1421,1422,1036,203,1423,1424,1425,1426,1427,1428,1429,1137,1430,203,907,1431,1324,1432,1433,1434,1435,1436,1437,1438,1324,1439,1440,1441,1442,910,1443,1444,1372,1373,1445,1378,1379,1446,203,1420,1382,1383,1384,1385,1447,1391,1392,1393,203,1448,1424,1449,1450,1451,1452,1453,1454,1427,1428,1455,1137,1430,203,1456,1457,1458,1459,1460,1461,1462,1463,1464,1465,203,907,1466,1324,1467,1468,1469,1324,1470,1471,1472,910,1473,1444,1474,1475,1476,1477,1478,1373,1445,1479,1480,1481,1482,1483,1484,1485,1486,1137,203,1487,203,1488,1489,1490,1491,1023,1492,1032,1493,1494,1495,1496,1497,1498,1499,1036,203,1500,1501,1502,203,1503,1137,1430,203,907,1504,1505,1506,1324,1507,1508,1509,1510,1511,1512,1324,1513,1514,1515,1516,1324,1517,1518,1519,1520,1521,910,1522,1444,1373,1445,1523,1524,203,1525,1420,1526,1527,1528,1529,1530,1531,1532,1533,1534,1535,1385,1447,1536,1537,1391,1538,1424,1539,1454,1427,1428,1540,1137,203,1541,1542,1543,1544,1545,1546,1547,1548,203,1549,1430,203,907,1550,1324,1551,1552,910,1553,1444,1373,1445,1554,1524,203,1555,1458,1459,1556,1557,1558,1463,1464,1559,1560,1561,1562,1563,1430,203,907,1564,1565,1324,1566,1567,1568,1569,910,1570,1444,1373,1445,1571,1572,203,1420,1573,1574,1575,1576,1577,1383,1578,1385,1447,1391,1538,1424,1579,1454,1427,1428,1137,1430],"import { db } from '@pagespace/db/db';","import { and, eq, inArray, isNotNull, type SQL } from '@pagespace/db/operators';","import { aiStreamSessions } from '@pagespace/db/schema/ai-streams';","import { loggers } from '@pagespace/lib/logging/logger-config';","import {"," decideAbortOutcome,"," type AbortOutcome,"," type SettleRow,","} from '@/lib/ai/core/stream-abort-decisions';"," ABORT_SETTLE_POLL_MS,"," ABORT_SETTLE_TIMEOUT_MS,","} from '@/lib/ai/core/stream-horizons';","import { materializeInterruptedStream } from '@/lib/ai/core/materialize-interrupted-stream';"," * The cross-instance half of Stop."," *"," * The abort registry is in-process. Prod runs multiple web instances. So an abort that lands on"," * an instance which does not own the stream has nothing to abort — and because streams are"," * server-owned and disconnect-immune, cancelling the client's fetch stops NOTHING. The agent kept"," * generating, kept calling write tools, and kept billing, while the button flipped back to Send."," * This module writes the abort request onto the stream's row, where the owning instance's watcher"," * (`stream-abort-watcher.ts`) will find it. Postgres is the coordination channel — the same one"," * the heartbeat and the distributed rate limiter already use. There is no new transport, no new"," * service identity, and nothing on a wire that could be forged."," * ── SECURITY: THE `WHERE` CLAUSE *IS* THE AUTHORIZATION ─────────────────────────────────────────"," * A broadcast-style abort would have to be re-authorized on receipt, because a receiving instance"," * cannot trust a payload's claim about who is allowed to stop what. Honouring such a claim"," * unchecked would be a remote kill switch for other users' generations."," * There is no such payload here. `markAbortRequested` can only mark a row it can already SELECT as"," * the caller's own, because the caller's `user_id` is a predicate of the UPDATE itself. A user who"," * names another user's messageId updates ZERO rows. The forged-abort case is not blocked, it is"," * unrepresentable — and the owner independently re-reads `user_id` from its own row before it"," * aborts anything."," * The one exception is `markAbortRequestedAsOwner`, below. Read its docblock before using it.","const sleepReal = (ms: number): Promise => new Promise((resolve) => setTimeout(resolve, ms));"," * Ask the owning instance to abort the caller's OWN in-flight stream(s)."," * Named by messageId, streamId, or conversationId — mirroring the abort endpoint's precedence."," * `streamId` is resolvable here (and not only in the minting process's memory) because it is now"," * persisted on the row; it is the name the client holds from the `X-Stream-Id` response header,"," * and so the one Stop most often uses."," * Returns the messageIds actually marked. Zero means \"no in-flight stream of YOURS matched\" — a"," * caller must not distinguish \"not yours\" from \"not there\", and neither does this function: doing"," * so would confirm the existence of another user's stream.","export interface MarkResult {"," /** messageIds now carrying an abort request. */"," marked: string[];"," /**"," * The write itself did not happen — the DB was unreachable, the pool was exhausted, the"," * statement timed out."," *"," * This is NOT the same as \"no row matched\", and conflating them is dangerous: an empty match is"," * benign (nothing of the caller's was in flight) and the client is designed to stay SILENT about"," * it, whereas a failed write means the Stop was never recorded ANYWHERE. The generation keeps"," * running, keeps calling write tools, and keeps billing, and the user would be told nothing at"," * all while the button flips back to Send. A failure to record the request is strictly worse"," * than a failure to read it back — so it must surface, as `unconfirmed`."," */"," failed: boolean;","export const markAbortRequested = async ({"," messageId,"," streamId,"," conversationId,"," userId,"," now = new Date(),","}: {"," messageId?: string;"," streamId?: string;"," conversationId?: string;"," userId: string;"," now?: Date;","}): Promise => {"," const markBy = async (name: SQL | undefined): Promise => {"," if (!name) return [];"," const marked = await db"," .update(aiStreamSessions)"," .set({ abortRequestedAt: now })"," .where(and("," name,"," // SECURITY — the caller's own streams only. Do not remove, do not \"generalise\", and do"," // not add a variant of this helper without it. This single predicate is what stands"," // between Stop and a remote kill switch for every other user's generation."," eq(aiStreamSessions.userId, userId),"," eq(aiStreamSessions.status, 'streaming'),"," ))"," .returning({ messageId: aiStreamSessions.messageId });"," return marked.map((row) => row.messageId);"," // EVERY name the caller gave us is marked — a UNION, not a first-match."," //"," // First-match precedence was a bug, and a subtle one. A client's `streamId` can be STALE (the"," // activeStreams map holds the previous turn's id until the new response headers land), and a"," // stale name is not the same as a name that resolves to nothing: during the tail of `onFinish` —"," // after the controller is unregistered but before the terminal write lands — the finished"," // stream's row STILL READS 'streaming'. So the stale name matched, precedence stopped there, and"," // the conversation was never marked. The generation that was actually running (a later turn,"," // possibly on another instance) was never asked to stop, and the caller was told `not_found` —"," // which the UI stays silent about. A silent Stop over a live generation: the cardinal sin, and"," // the exact bug this whole PR exists to eliminate."," // A union also makes this step AGREE with the local step, which already aborts every one of the"," // caller's streams on the conversation. Two steps that disagree about what a name means is how"," // that bug kept coming back in new shapes."," // Naming the conversation is what Stop means anyway — \"stop whatever of MINE is generating here\""," // — and the `user_id` predicate rides every branch, so this can never reach another user."," const names: SQL[] = ["," messageId ? eq(aiStreamSessions.messageId, messageId) : undefined,"," streamId ? eq(aiStreamSessions.streamId, streamId) : undefined,"," conversationId ? eq(aiStreamSessions.conversationId, conversationId) : undefined,"," ].filter((name): name is SQL => name !== undefined);"," // Accumulated OUTSIDE the try, because these are separate autocommitted statements: if the second"," // throws, the rows the first marked are still marked, and their owners will still stop them."," // Reporting an empty set there would be a second lie on top of the failure."," const marked = new Set();"," try {"," for (const name of names) {"," for (const id of await markBy(name)) marked.add(id);"," return { marked: [...marked], failed: false };"," } catch (error) {"," loggers.ai.warn('cross-instance abort: could not mark stream(s) for abort', {"," conversationId,"," error: error instanceof Error ? error.message : 'unknown',"," });"," return { marked: [...marked], failed: true };","};"," * Mark rows for abort as the STREAM'S OWNER rather than as the caller — no user predicate."," * FOR THE TAKEOVER PATH ONLY (`stream-takeover.ts`), and it grants no privilege that path did not"," * already have: it is the exact analogue of the abort it already performs, which passes"," * `row.userId` and not the caller's for precisely this reason. A second send on a SHARED"," * conversation must be able to take over a co-member's generation, or user B's send leaves user"," * A's agent running — still calling tools, still editing pages, still billing — while B's starts"," * beside it. The caller's right to write to the conversation is established upstream, by the"," * route, before this is ever reached."," * A user-facing Stop must NEVER call this. Use `markAbortRequested`, whose WHERE clause carries"," * the caller's id. If you find yourself wanting an unfiltered \"mark by messageId\" helper for a"," * client-driven path, you are about to hand anyone holding a messageId the ability to stop"," * anyone's generation.","export const markAbortRequestedAsOwner = async ({"," messageIds,"," messageIds: readonly string[];"," if (messageIds.length === 0) return { marked: [], failed: false };"," inArray(aiStreamSessions.messageId, [...messageIds]),"," return { marked: marked.map((row) => row.messageId), failed: false };"," // `failed`, not silence. A takeover that could not even RECORD its abort request is about to"," // start a second generation beside a live one — two agents, two sets of write tools, two"," // bills. That must reach the log, not be swallowed into an empty result that reads exactly"," // like \"there was nothing to stop\"."," loggers.ai.warn('cross-instance abort: could not mark stream(s) for takeover abort', {"," messageIds,"," return { marked: [], failed: true };","const readSettleRows = (messageIds: readonly string[]): Promise =>"," db"," .select({"," messageId: aiStreamSessions.messageId,"," status: aiStreamSessions.status,"," startedAt: aiStreamSessions.startedAt,"," lastHeartbeatAt: aiStreamSessions.lastHeartbeatAt,"," })"," .from(aiStreamSessions)"," .where(inArray(aiStreamSessions.messageId, [...messageIds]));"," * Wait for marked streams to actually stop, and say honestly what happened."," * Effects are INJECTED (`readRows`, `sleep`, `now`) so this can be driven end to end in a test"," * with a real in-memory row store rather than a mocked DB module — a mocked one would happily"," * pass while the real query was wrong."," * Every verdict is delegated to `decideAbortOutcome`, which is where the subtle part lives: a"," * timeout is NOT the same as \"still running\" (a crashed owner never settles its row either), so a"," * stale heartbeat is read as \"stopped, and the row needs reconciling\" and never as an alarm.","export const awaitAbortSettled = async ({"," timeoutMs = ABORT_SETTLE_TIMEOUT_MS,"," intervalMs = ABORT_SETTLE_POLL_MS,"," readRows = readSettleRows,"," sleep = sleepReal,"," now = Date.now,"," timeoutMs?: number;"," intervalMs?: number;"," readRows?: (messageIds: readonly string[]) => Promise;"," sleep?: (ms: number) => Promise;"," now?: () => number;","}): Promise => {"," if (messageIds.length === 0) {"," return decideAbortOutcome({ requested: [], rows: [], now: now() });"," const deadline = now() + timeoutMs;"," // Loop, rather than a single sleep-then-check: the common case is the owner picking the mark up"," // on its next tick, and returning the moment it does keeps Stop feeling immediate."," for (;;) {"," let rows: SettleRow[];"," rows = await readRows(messageIds);"," // The streams may well have stopped; we simply cannot see it. Say that, rather than"," // claiming either outcome."," loggers.ai.warn('cross-instance abort: could not read back stream status', {"," messageIds,"," error: error instanceof Error ? error.message : 'unknown',"," });"," return { aborted: [], reconcile: [], stillLive: [...messageIds], code: 'unconfirmed' };"," const outcome = decideAbortOutcome({ requested: messageIds, rows, now: now() });"," if (outcome.stillLive.length === 0) return outcome;"," if (now() >= deadline) return outcome;"," await sleep(intervalMs);"," * Drive terminal the rows whose owner is provably gone — and, since Server Stream Durability"," * PR 3, materialize each one's parts snapshot into an honest `status: 'interrupted'` assistant"," * message rather than just wiping the session row."," * Only ever called with `decideAbortOutcome().reconcile` — rows that are still 'streaming' but"," * whose heartbeat is stale, i.e. whose process died without writing its terminal status. This is"," * the same licence `decideStreamTakeover().reconcile` already grants, and it carries the same"," * hard rule: a row that we did not stop and that STILL LOOKS ALIVE must never be written here."," * Marking a running stream 'aborted' and wiping its parts would hide it from every subscriber and"," * destroy its only crash-recovery snapshot, while it kept on generating."," * Re-selects the full row (channelId, conversationId, userId, parts) fresh rather than threading"," * them through `decideAbortOutcome`'s messageId-only contract — that keeps this the only place"," * that needs the wider column set, and re-applies the same `status='streaming'` guard against"," * whatever landed between the caller's read and here."," * Returns the messageIds actually driven terminal — a subset of `messageIds`, never assumed to"," * be all of them. `materializeInterruptedStream` never throws but can still fail partway (and"," * report so via its own return value); a caller that reports every requested id as \"reconciled\""," * regardless of whether the row read even found it, or the write actually landed, would silently"," * misreport a retryable ghost row as handled.","export const reconcileDeadStreamRows = async ({","}): Promise => {"," if (messageIds.length === 0) return [];"," let rows: { messageId: string; channelId: string; conversationId: string; userId: string; parts: unknown[]; startedAt: Date }[];"," rows = await db"," .select({"," messageId: aiStreamSessions.messageId,"," channelId: aiStreamSessions.channelId,"," conversationId: aiStreamSessions.conversationId,"," userId: aiStreamSessions.userId,"," parts: aiStreamSessions.parts,"," startedAt: aiStreamSessions.startedAt,"," })"," .from(aiStreamSessions)"," // Conditional on status, so a stream that terminated on its own between the read and here"," // is not retroactively relabelled."," ));"," loggers.ai.warn('cross-instance abort: could not read dead stream row(s) for materialization', {"," return [];"," // Concurrent, not sequential — `materializeInterruptedStream` never throws (it catches and"," // logs its own DB failures per step) and each row is independent, so there is no correctness"," // reason to serialize a mass-crash-recovery batch (potentially dozens of rows after an"," // instance dies) into N sequential round trips."," const results = await Promise.all(rows.map(async (row) => {"," const ok = await materializeInterruptedStream(row);"," return ok ? row.messageId : null;"," }));"," return results.filter((id): id is string => id !== null);"," * Read the rows this instance has been asked to abort."," * Scoped to the messageIds this process actually owns: a mark for another instance's stream is"," * none of our business, and must be left untouched for the instance that can act on it.","export const readMarkedStreams = async ({","}): Promise<{ messageId: string; streamId: string | null; userId: string }[]> => {"," return db"," streamId: aiStreamSessions.streamId,"," // The OWNER, straight from our own row. Never a claim made by whoever requested the abort."," userId: aiStreamSessions.userId,"," .where(and("," inArray(aiStreamSessions.messageId, [...messageIds]),"," eq(aiStreamSessions.status, 'streaming'),"," isNotNull(aiStreamSessions.abortRequestedAt),"," ));"," * Clear a mark that can never be actioned — one written against a generation that has already"," * been superseded on this row. Without this the watcher re-reads it on every tick, forever."," * Only ever called with `decideWatcherActions().clear`, which is a strictly narrower set than"," * \"marks we saw\": a mark belonging to ANOTHER instance is never cleared here, because clearing it"," * would consume the abort request without performing the abort — and the user's Stop would"," * silently do nothing, which is the original bug wearing a different hat.","export const clearAbortMarks = async ({","}): Promise => {"," if (messageIds.length === 0) return;"," // Conditional on status so a mark written against a row that has since terminated"," // (or been taken over by a new generation) is not cleared here — the old mark is"," // harmless on a non-streaming row, and clearing it unconditionally could erase a"," // mark written between the watcher's read and this clear (#2028 item 4b)."," await db"," .set({ abortRequestedAt: null })"," loggers.ai.warn('cross-instance abort: could not clear stale abort mark(s)', {","apps/web/src/lib/ai/core/stream-takeover.ts",[1582],{"_866":566,"_867":1583,"_402":1584,"_870":59},303,[1310,1585,1312,1313,1586,1587,1314,1588,1589,1590,1591,1592,1322,203,907,1593,1594,1324,1595,1324,1596,1597,1598,1599,1600,1324,1601,1602,1603,1604,1605,1606,1324,1607,1608,1324,1609,1324,1610,1611,1324,1612,1613,1614,1615,1616,1617,1618,1619,1620,1621,1622,1324,1623,1624,1324,1625,1626,1627,1628,910,1629,1370,1630,1631,1373,1632,1633,1634,1635,1420,1636,1527,1528,1637,1531,1638,1533,1639,1640,1641,1642,1532,1534,1535,1385,1643,1644,1391,1538,203,1645,203,1646,1647,1648,1649,1650,1651,1652,1653,1654,1655,1656,1657,1658,1659,1660,1661,1662,1663,1664,1665,1666,1667,1036,203,1668,1669,1670,1671,1672,1673,203,1674,1675,1676,203,1677,1678,1679,1680,1681,1682,1683,1684,1685,1686,1687,1688,1689,1690,1691,1692,1693,1694,1695,1696,1498,1697,203,1698,1699,1700,1701,1702,1703,1704,1705,1706,1707,1708,1709,1710,1711,1712,1713,1714,1715,1716,203,1717,1718,1719,1720,1721,1722,1723,1724,1725,1726,1727,1728,1729,1730,1731,1732,1733,1734,1735,1736,1737,1738,1127,1031,203,1739,1036,203,1740,1741,1742,1743,1744,1652,1745,1746,1747,1748,1749,1750,1751,1752,1753,1754,1755,203,1756,1757,1758,203,1759,1760,1761,1762,1763,1764,203,1765,1766,1767,1768,1769,1770,1710,1709,1771,1714,1031,203,1772,1773,1774,1775,1776,1498,203,1777,1778,203,1779,1780,1781,1782,1783,203,1784,1785,1786,1787,1788,1789,1710,1709,1790,1791,1714,1031,1036,203,1792,1793,1794,1795,1796,1797,1798,203,1799,1652,1800,1801,1802,1803,1804,1805,1806,1807,1808,1498,1036,203,1809,1424,1810,1811,1812,1426,1427,1428,1813,1137,1430],"import { and, eq, inArray } from '@pagespace/db/operators';","import { abortStreamByMessageId, wasRecentlyFinishedHere } from '@/lib/ai/core/stream-abort-registry';","import { decideStreamTakeover, isProvablyDead } from '@/lib/ai/core/stream-liveness';"," awaitAbortSettled,"," markAbortRequestedAsOwner,"," reconcileDeadStreamRows,","} from '@/lib/ai/core/stream-abort-mark';","import { TAKEOVER_SETTLE_TIMEOUT_MS } from '@/lib/ai/core/stream-horizons';"," * Per-conversation in-flight guard. Used by both chat routes (POST /api/ai/chat and"," * POST /api/ai/global/[id]/messages) — every path that starts a generation."," * ── WHAT THIS DOES NOT GUARANTEE ────────────────────────────────────────────────────────────"," * It does NOT enforce \"at most one generation per conversation\", and you must not write code"," * that assumes it does. This is a check-then-act with no serialization: the SELECT below and the"," * INSERT in `createStreamLifecycle` — which is what would make a peer see this generation — are"," * not atomic together. Two near-simultaneous sends can BOTH find zero in-flight rows and BOTH"," * proceed: two generations, two sets of tool calls, two bills."," * Closing it needs DB-level serialization: an advisory lock spanning takeover+insert, or a"," * partial unique index on (conversation_id) WHERE status='streaming' — whose migration would"," * fail outright on any pre-existing duplicate rows, so it needs a reconciliation step first."," * That is its own change, with its own migration risk. `master` has no takeover at all"," * (concurrent sends there ALWAYS double-generate), so what follows is a strict improvement — it"," * narrows the window, it does not eliminate it."," * Stated here because the call site's comment used to claim the opposite, and a comment that"," * promises a guarantee the code lacks is how the next person builds on a false premise."," * ── WHAT IT DOES ────────────────────────────────────────────────────────────────────────────"," * Before a new generation starts on a conversation, anything already in flight on that"," * conversation is taken over:"," * 1. EVERY in-flight row gets an abort attempt, as the stream's OWNER. Liveness never"," * gates this: aborting a messageId this process doesn't know is free, while skipping"," * an abort for a row we misjudged as dead leaves a real generation running."," * 2. Only rows we can PROVE are finished — the ones the registry actually aborted, plus"," * the ones whose heartbeat says their process is gone — are driven terminal. A live"," * row we could not abort is left alone: marking it 'aborted' and wiping its parts would"," * hide a running stream from every subscriber and destroy its only crash-recovery snapshot."," * 3. A live row we could not abort belongs to ANOTHER WEB INSTANCE (the registry is"," * in-process). It is marked for a cross-instance abort and we wait, briefly, for its owner"," * to stop it. This used to be the end of the road: the send simply proceeded alongside a"," * still-running generation — two agents, two sets of write tools, two bills."," * The new generation then proceeds regardless — see `stream-liveness.ts` for why this is a"," * takeover and never a 409."," * Without this, a second send simply starts a second generation on the same conversation —"," * two agents editing the same pages, two assistant rows, two bills. (The only pre-existing"," * limiter is the credit gate's per-USER `maxInFlight`, which is per-user, not"," * per-conversation, and is skipped entirely for metering-exempt providers.)","export const takeOverConversationStreams = async ({"," channelId,"," now = Date.now(),"," conversationId: string;"," channelId: string;"," now?: number;","}): Promise<{ aborted: string[]; reconciled: string[] }> => {"," const rows = await db"," // The stream's OWNER — not the caller. See the abort loop below."," lastHeartbeatAt: aiStreamSessions.lastHeartbeatAt,"," // The debounced parts snapshot — needed only if this row ends up in `reconcile` and gets"," // materialized into an interrupted message. Selected unconditionally since it rides the"," // same query as everything else here and there are at most a handful of in-flight rows"," // per conversation."," eq(aiStreamSessions.conversationId, conversationId),"," eq(aiStreamSessions.channelId, channelId),"," if (rows.length === 0) return { aborted: [], reconciled: [] };"," // Abort EVERY in-flight row, without consulting liveness. An abort for a messageId"," // this process doesn't own is a no-op that returns `{aborted:false}`; SKIPPING an"," // abort for a row we wrongly judged dead leaves a real generation running and starts"," // a second one beside it. Only the outcome of these calls is trustworthy — never our"," // liveness guess. (`decideStreamTakeover().abort` encodes exactly this set: every"," // row. Iterating `rows` here is the same thing, and keeps the owner id in hand.)"," //"," // Abort as the stream's OWNER, not as the caller. `abortStream` refuses an abort"," // whose userId doesn't match the stream's — an IDOR guard that exists for the"," // client-facing POST /api/ai/abort endpoint. This is not that: it is a trusted"," // server-side path, and the caller's right to write to this conversation was already"," // established upstream (page edit access, plus the ownership/shared check on"," // conversationId in the route; the global route hard-throws on a foreign"," // conversation). Passing the caller's id would make the guard refuse every"," // cross-user abort, so on a SHARED conversation user B's send would leave user A's"," // generation running — still calling tools, still editing pages, still billing —"," // while B's new one started beside it. Which is the entire thing this guard exists"," // to prevent."," const aborted: string[] = [];"," for (const row of rows) {"," const result = abortStreamByMessageId({ messageId: row.messageId, userId: row.userId });"," if (result.aborted) aborted.push(row.messageId);"," // Only NOW decide what may be driven terminal: what we actually stopped, plus what is"," // provably dead. A row we could NOT abort and that still looks alive belongs to"," // another web instance (the registry is single-process). It is still generating —"," // marking it 'aborted' and wiping its parts would hide a live stream from every"," // subscriber and destroy its only crash-recovery snapshot."," const { reconcile } = decideStreamTakeover({ rows, abortedMessageIds: aborted, now });"," // Populated below with only the ids ACTUALLY driven terminal — never assumed from"," // `reconcile` itself, which is only what we attempted."," let locallyReconciled: string[] = [];"," if (reconcile.length > 0) {"," // `reconcile` mixes two DIFFERENT kinds of row, and they must be handled differently —"," // conflating them is exactly the race that used to silently clobber fresher content with a"," // staler one:"," //"," // - PROVABLY DEAD (heartbeat stale): the owning process is gone. Nothing else will EVER"," // write this row's terminal message, so it is materialized here — this is the only"," // chance the content has."," // - JUST ABORTED BY US, THIS REQUEST (`aborted.has(id)`, heartbeat still fresh): the"," // owning generation is THIS SAME PROCESS, moments from running its own onFinish, which"," // persists the full, correct content as `status: 'interrupted'` via the normal"," // execute-end/onFinish path (message-utils.ts). Materializing here too would race that"," // natural write with an OLDER checkpoint snapshot and could overwrite it — the exact"," // silent-content-loss bug this module exists to prevent, just introduced by this PR"," // instead of fixed by it. So these rows get ONLY the cheap, ephemeral session-row wipe"," // (today's pre-existing behavior); the durable message is left to its own generation."," const rowById = new Map(rows.map((r) => [r.messageId, r]));"," const provablyDead = reconcile.filter((id) => {"," const row = rowById.get(id);"," return row !== undefined && isProvablyDead(row, now);"," const justAbortedStillAlive = reconcile.filter((id) => !provablyDead.includes(id));"," // `materializeInterruptedStream` never throws (it catches and logs its own DB failures per"," // step) and returns whether it actually succeeded — a batch of independent rows can run"," // concurrently without one row's failure taking out the others, but the RESULT must still"," // be checked per-row: `Promise.all` resolving tells you nothing about which calls actually"," // landed, and reporting every id as reconciled regardless would be exactly the misreporting"," // bug this module's own docblock warns against."," const materializedIds = (await Promise.all(provablyDead.map(async (messageId) => {"," const row = rowById.get(messageId);"," if (!row) return null;"," const ok = await materializeInterruptedStream({"," messageId,"," channelId,"," conversationId,"," userId: row.userId,"," parts: row.parts,"," startedAt: row.startedAt,"," });"," return ok ? messageId : null;"," }))).filter((id): id is string => id !== null);"," let wipedIds: string[] = [];"," if (justAbortedStillAlive.length > 0) {"," try {"," // Conditional on status so a stream that terminated on its own between the SELECT and"," // here isn't retroactively relabelled 'aborted'."," await db"," .update(aiStreamSessions)"," .set({ status: 'aborted', completedAt: new Date(), parts: [], abortRequestedAt: null })"," .where(and("," inArray(aiStreamSessions.messageId, justAbortedStillAlive),"," eq(aiStreamSessions.status, 'streaming'),"," ));"," wipedIds = justAbortedStillAlive;"," } catch (error) {"," loggers.ai.warn('AI Chat API: takeover aborted streams but could not clear their session rows', {"," conversationId,"," channelId,"," // The streams ARE stopped, and their own onFinish will still persist the durable"," // message correctly. Only the ephemeral session-row cleanup failed here."," unreconciled: justAbortedStillAlive,"," error: error instanceof Error ? error.message : 'unknown',"," });"," locallyReconciled = [...materializedIds, ...wipedIds];"," // A live row this instance does not own. This USED to be the end of the road — it was logged"," // (\"in-flight stream(s) could not be aborted from this instance\") and the send proceeded,"," // starting a SECOND generation beside a first that was still running: two agents, two sets of"," // write tools, two bills. The abort registry is in-process, so there was genuinely nothing"," // more this instance could do."," // There is now. Mark the row and wait for the instance that owns it to consume the mark and"," // stop the stream."," const unstoppable = rows"," .map((r) => r.messageId)"," .filter((id) => !aborted.includes(id) && !reconcile.includes(id))"," // A generation that FINISHED on this instance is not \"unstoppable\" — it is over. Its row"," // lingers at 'streaming' with a live heartbeat until the terminal write lands at the end of"," // onFinish (after message persistence and per-tool billing), so without this it looks exactly"," // like a live stream on another instance: we would mark it, wait the full budget for an owner"," // that no longer exists, and warn. On a rapid follow-up send — the common case — every time."," .filter((id) => !wasRecentlyFinishedHere({ messageId: id }));"," let remotelyAborted: string[] = [];"," let remotelyReconciled: string[] = [];"," let stillLive: string[] = [];"," if (unstoppable.length > 0) {"," // As the stream's OWNER, not the caller — the exact analogue of the abort loop above, and"," // for the same reason: on a SHARED conversation, user B's send must be able to take over"," // user A's generation. See markAbortRequestedAsOwner, which may never be reached from a"," // client-driven Stop."," const { marked, failed } = await markAbortRequestedAsOwner({ messageIds: unstoppable });"," if (failed) {"," // The abort request was never RECORDED, so nothing will ever consume it. This send is"," // about to start a second generation beside a live one — two agents, two sets of write"," // tools, two bills — and an empty result would read exactly like \"there was nothing to"," // stop\". Say what actually happened."," loggers.ai.error('AI Chat API: could not record cross-instance abort for in-flight stream(s); generating alongside them', {"," messageIds: unstoppable,"," // Bounded: the user is waiting for their message to send. Shorter than a user-facing Stop's"," // budget, and on expiry we proceed exactly as before rather than blocking the send."," const outcome = await awaitAbortSettled({"," messageIds: marked,"," timeoutMs: TAKEOVER_SETTLE_TIMEOUT_MS,"," remotelyAborted = outcome.aborted;"," stillLive = outcome.stillLive;"," // Rows whose owner is provably gone (stale heartbeat) — nothing is running, but nothing"," // wrote their terminal status either. Same licence decideStreamTakeover already grants."," // `outcome.reconcile` is only what's ELIGIBLE to be driven terminal — reconcileDeadStreamRows"," // returns what it ACTUALLY materialized, which is what belongs in the caller's own report."," remotelyReconciled = await reconcileDeadStreamRows({ messageIds: outcome.reconcile });"," if (stillLive.length > 0) {"," // The honest, narrower successor to the old warn. It no longer means \"we cannot stop"," // this\" — it means \"we asked, and it has not stopped yet\". In steady state it never"," // fires; during a rolling deploy, where an old worker without the abort watcher still"," // owns the stream, it is the single most valuable line in the log."," loggers.ai.warn('AI Chat API: in-flight stream(s) marked for cross-instance abort but not confirmed stopped', {"," messageIds: stillLive,"," waitedMs: TAKEOVER_SETTLE_TIMEOUT_MS,"," const allAborted = [...aborted, ...remotelyAborted];"," // Rows driven terminal by the cross-instance path are reconciled just as surely as the ones"," // this instance reconciled directly. Leaving them out under-reports what the takeover actually"," // did — and this module's own docblock is emphatic that a log which misreports attests to"," // nothing, which is the same defect as a test that cannot fail. `locallyReconciled` (not"," // `reconcile`) is what was actually driven terminal, not merely attempted."," const allReconciled = [...locallyReconciled, ...remotelyReconciled];"," // Only claim a takeover when one actually happened."," // This used to log \"took over in-flight stream(s)\" unconditionally — including when we had"," // taken over NOTHING and were about to generate alongside a live foreign stream. That was the"," // exact moment an operator most needed the truth, and the log said the opposite."," if (allAborted.length > 0 || allReconciled.length > 0) {"," loggers.ai.info('AI Chat API: took over in-flight stream(s) on this conversation', {"," conversationId,"," channelId,"," aborted: allAborted,"," reconciled: allReconciled,"," return { aborted: allAborted, reconciled: allReconciled };"," // Never block the send on a failed takeover — the worst case is the"," // pre-existing behaviour (a concurrent generation), not a locked chat."," loggers.ai.warn('AI Chat API: stream takeover failed', {"," return { aborted: [], reconciled: [] };","apps/web/src/lib/ai/core/materialize-interrupted-stream.ts",[1816],{"_866":566,"_867":1817,"_402":1818,"_870":59},212,[1310,1819,1312,1820,1821,1313,1822,1823,1824,1825,1826,203,907,1827,1828,1829,1830,910,1831,1832,1833,1834,1835,1633,1632,1836,1837,1377,1838,1839,1840,1841,1842,1843,1844,1845,1846,1847,906,203,907,1848,1849,1324,1850,1851,1324,1852,1853,1854,1855,1856,1857,1858,1859,1860,1861,1862,1863,1864,1865,1866,1867,1868,1869,1870,1324,1871,1872,1873,1874,1875,1876,1324,1877,1878,1879,1880,1881,1882,1883,910,1884,1885,203,1420,1886,1887,1888,1889,1890,1891,203,1892,203,1893,1894,1895,1896,1897,1898,1711,1899,1900,1901,1902,1903,1904,1905,1906,1907,1908,1909,1910,1911,1912,1913,1914,1915,1916,1917,1918,1919,1920,1921,1922,1923,1924,1925,1714,1926,1894,1927,1896,1897,1928,1898,1899,1900,1901,1902,1903,1904,1905,1906,1907,1929,1930,1908,1909,1910,1931,1912,1913,1914,1915,1919,1920,1921,1932,1714,1036,1424,1933,1934,1427,1428,1935,1936,1937,1938,1137,203,1939,1420,1940,1383,1941,1385,1942,1943,1944,1391,1538,1945,1946,1947,1948,1949,1950,1424,1951,1952,1934,1427,1428,1137,203,1953,1954,1955,1956,1957,1958,1959,1934,1427,1428,1960,203,1961,1430],"import { and, eq } from '@pagespace/db/operators';","import { chatMessages } from '@pagespace/db/schema/core';","import { messages } from '@pagespace/db/schema/conversations';","import { parseGlobalChannelId } from '@pagespace/lib/ai/global-channel-id';","import { broadcastAiStreamComplete } from '@/lib/websocket';","import { buildAssistantPersistencePayload } from '@/lib/ai/core/persistAssistantParts';","import { extractStructuredContentFromParts } from '@/lib/ai/core/message-utils';","import type { UIMessagePart } from '@/lib/ai/core/stream-multicast-registry';"," * An `ai_stream_sessions` row the CALLER has already proven dead (`isProvablyDead` —"," * stream-liveness.ts). This module does not re-derive eligibility; it only re-guards the"," * one invariant that survives even a correct eligibility call: the #2022 race where the old"," * worker's own terminal write lands between the caller's read and this write.","export interface MaterializableStreamRow {"," messageId: string;"," /** The stream's channel — a real pageId for page-chat, or a synthetic `user::global`"," * id for the global assistant (see `parseGlobalChannelId`). Decides which message table"," * this row belongs to. */"," /** The stream's owner. For a global-assistant row this doubles as `messages.userId`"," * (NOT NULL there) — the same field the normal save path already uses. */"," /** The last debounced parts snapshot — possibly stale by up to one checkpoint interval,"," * never by more (see PR 1's time-based cadence). This is the only content a dead process"," * leaves behind; there is no live buffer to fall back to. */"," parts: unknown[];"," /** The stream's actual start time. Used ONLY as the `createdAt` for the defensive"," * insert-if-missing branch below (the placeholder row should already exist per PR 2, but a"," * failed placeholder insert is the one case this function must still degrade gracefully"," * for) — never reap/takeover time, or a recovered reply can sort after a user's later"," * follow-up message that was saved in the interim. */"," startedAt: Date;"," * Turn a provably-dead stream into an honest, terminal assistant message instead of a"," * silent loss."," * Three things happen, in an order chosen so a failure at any step leaves the row eligible"," * for the NEXT sweep to retry rather than half-materialized:"," * 1. Build the message payload from the parts snapshot (`buildAssistantPersistencePayload`,"," * then `extractStructuredContentFromParts` — the SAME two-step pipeline execute-end and"," * onFinish already use in `saveMessageToDatabase`/`saveGlobalAssistantMessageToDatabase`,"," * so a materialized reply preserves file/data parts and ordering exactly like one the"," * model actually finished, instead of degrading to flat extracted text)."," * 2. Upsert the assistant message row as `status: 'interrupted'` — but ONLY if it is still"," * `'streaming'` (the placeholder state). That guard is the #2022 invariant, and it is"," * deliberately compare-and-swap rather than a blanket \"not complete\": the old worker's own"," * terminal write is fire-and-forget and can land in the gap between the caller's liveness"," * read and this write — and it can ALSO leave a row `'interrupted'` (a clean Stop whose"," * onFinish wrote full content but whose session-row settle then failed). Guarding on"," * `!= 'complete'` would still let a later sweep clobber that already-correct interrupted"," * row with an older debounced checkpoint; guarding on `== 'streaming'` cannot, because a"," * row leaves `'streaming'` exactly once. A `setWhere` on the conflict clause makes the"," * guard atomic — there is no separate read to race."," * 3. Only once the message write is confirmed: settle the `ai_stream_sessions` row"," * terminal (`status: 'aborted'`, parts cleared) and broadcast `stream_complete`."," * Settling first would let a crashed sweep lose the row's only content — the session"," * row would read terminal while no terminal message ever got written."," * Never throws. Every step logs and degrades — a reap that fails partway must not take"," * down the caller's loop over the rest of its batch (takeover, the abort-mark reconciler,"," * and the active-streams lazy sweep all call this per-row, in a loop). This is why step 1"," * — building the payload from `row.parts` — lives INSIDE the same try/catch as the DB write:"," * a malformed parts snapshot must degrade exactly like a failed write, not escape uncaught to"," * a caller that assumes this function never throws."," * Returns whether the row was actually driven fully terminal (message written AND the session"," * row settled) — `false` on any failure. Callers that aggregate this into a \"reconciled\" count"," * or log line MUST use the return value rather than assuming every call they made succeeded:"," * a `Promise.all` over several rows tells you nothing about which ones actually landed, and a"," * batch reported as \"reconciled\" when some rows silently stayed `'streaming'` is exactly the"," * misreporting bug (a log that attests to nothing) this module's sibling functions already"," * guard against.","export const materializeInterruptedStream = async (row: MaterializableStreamRow): Promise => {"," const now = new Date();"," const payload = buildAssistantPersistencePayload(row.messageId, row.parts as UIMessagePart[]);"," const structuredContent = payload.uiMessage.parts.length > 0"," ? await extractStructuredContentFromParts(payload.uiMessage.parts, payload.content)"," : payload.content;"," const toolCallsJson = payload.toolCalls ? JSON.stringify(payload.toolCalls) : null;"," const toolResultsJson = payload.toolResults ? JSON.stringify(payload.toolResults) : null;"," const globalOwnerId = parseGlobalChannelId(row.channelId);"," if (globalOwnerId !== null) {"," await db"," .insert(messages)"," .values({"," id: row.messageId,"," conversationId: row.conversationId,"," role: 'assistant',"," content: structuredContent,"," toolCalls: toolCallsJson,"," toolResults: toolResultsJson,"," // Only reached if the placeholder insert (PR 2's seam) never happened — the stream's"," // actual start, not reap time, so a recovered reply still sorts correctly against a"," // user's later follow-up message."," createdAt: row.startedAt,"," isActive: true,"," status: 'interrupted',"," })"," .onConflictDoUpdate({"," target: messages.id,"," set: {"," content: structuredContent,"," toolCalls: toolCallsJson,"," toolResults: toolResultsJson,"," // Re-synced on conflict, mirroring saveMessageToDatabase's own update-set — a"," // message reprocessed/reparented into a different conversation before this sweep"," // ran should not have its conversationId left stale."," conversationId: row.conversationId,"," status: 'interrupted',"," },"," // The #2022 invariant, enforced atomically as a compare-and-swap: only a row still"," // `'streaming'` may be relabelled. Never re-touch a row already `'interrupted'` or"," // `'complete'` — see the docblock above for why `!= 'complete'` alone isn't enough."," setWhere: eq(messages.status, 'streaming'),"," } else {"," .insert(chatMessages)"," pageId: row.channelId,"," userId: null,"," sourceAgentId: null,"," target: chatMessages.id,"," setWhere: eq(chatMessages.status, 'streaming'),"," loggers.ai.warn('materializeInterruptedStream: message upsert failed', {"," messageId: row.messageId,"," // Leave the session row at 'streaming' — the next sweep (takeover, reconciler, or the"," // active-streams lazy pass) will find this row again and retry the whole thing. Settling"," // it here would report the stream over while its reply was never actually saved."," return false;"," let settled: boolean;"," const result = await db"," .set({ status: 'aborted', completedAt: now, parts: [], rawPartsCount: 0, abortRequestedAt: null })"," eq(aiStreamSessions.messageId, row.messageId),"," // Conditional so a row that reached a terminal status by some other path between the"," // caller's read and here is not retroactively relabelled."," // A conditional UPDATE that matches zero rows does not throw — it succeeds and changes"," // nothing. That happens when a concurrent reap (another instance's takeover, or a second"," // sweep racing this one) already settled this exact row first. `rowCount` is the only way"," // to tell \"I settled it\" from \"someone else already had\" — matching the established"," // pattern for the same class of conditional update (compaction-repository.ts)."," settled = (result.rowCount ?? 0) > 0;"," settled = false;"," loggers.ai.warn('materializeInterruptedStream: could not settle session row', {"," broadcastAiStreamComplete({"," messageId: row.messageId,"," pageId: row.channelId,"," conversationId: row.conversationId,"," aborted: true,"," }).catch((error) => {"," loggers.ai.warn('materializeInterruptedStream: broadcast failed', {"," });"," return settled;",[1963,1964,1965,1966,1967,1968,1969,1970,1971,1972,1973,1974,1975,1976,1977,1978],{"_840":46,"_46":2004},{"_840":1980,"_164":1814,"_866":2002,"_867":2003},{"_840":1980,"_164":1814,"_866":2000,"_867":2001},{"_840":46,"_46":1999},{"_840":1980,"_164":1814,"_866":1997,"_867":1998},{"_840":1980,"_164":1814,"_866":1995,"_867":1996},{"_840":46,"_46":1994},{"_840":1980,"_164":1814,"_866":1992,"_867":1993},{"_840":1980,"_164":1814,"_866":1991,"_867":1991},{"_840":46,"_46":1990},{"_840":1980,"_164":1580,"_866":1988,"_867":1989},{"_840":1980,"_164":1305,"_866":1986,"_867":1987},{"_840":46,"_46":1985},{"_840":1980,"_164":1228,"_866":1983,"_867":1984},{"_840":1980,"_164":860,"_866":1981,"_867":1982},{"_840":46,"_46":1979},"\n\n**Testing**\n* ✅ `git status --short`\n* ⚠️ `bun run --filter 'web' test -- apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts apps/web/src/lib/ai/core/__tests__/stream-abort-mark.test.ts apps/web/src/components/ai/shared/chat/__tests__/MessageRenderer.interrupted.test.tsx apps/web/src/components/ai/shared/chat/__tests__/CompactMessageRenderer.interrupted.test.tsx` — could not run because `vitest` is not installed/found in this environment.\n\nNo commit was created and no PR was opened because there were no code changes to commit.","repo_file_citation",445,453,447,455,"\n* Verified the icon-only retry buttons have explicit accessible labels in both renderers. ",326,331,152,170,"\n* Verified reconciliation paths count only successfully materialized rows after concurrent `Promise.all` execution. ",211,176,190,"\n* Verified the session-row settle path checks `rowCount` and returns success only when this invocation actually settled the row. ",142,145,107,110,"\n* Verified defensive inserts use the stream’s original `startedAt` timestamp, not reap time. ",151,160,126,130,"### Summary\n* No new code changes were needed: the latest review feedback is already addressed on the current branch.\n* Verified materialization now only updates rows still in `status: 'streaming'`, preserving already-terminal `complete` or `interrupted` messages. ",{"_92":310,"_42":84,"_96":310,"_2007":2008,"_2009":2010,"_2011":2012,"_132":-5,"_119":2013},[83],"input_items",[2032,2033,2034,2035,2036,2037,2038,2039,2040,2041,2042,2043,2044,2045,2046,2047,2048,2049,2050,2051,2052,2053,2054,2055,2056],"external_post_config",{"_2014":2015,"_248":200,"_2016":290,"_259":-5,"_2017":242,"_2018":-5,"_2019":-5,"_2020":2021,"_2022":2023,"_2024":-5,"_2025":-5,"_2026":2027,"_2028":15,"_2029":59,"_2030":54,"_2031":15},"user_model_slug","slug",1784108459.271042,"installation_id",87191384,"pr_number","repo_id","gitlab_service_account_project_id","review_trigger","comment_id",4979150032,"comment_type","issue","pr_write_guard_token","pending_pr_reaction_id","pending_comment_reaction_id",382943150,"comment_if_no_findings","comment_on_error","share_url","is_parallel_review",{"_92":410,"_96":310,"_402":2087},{"_297":298,"_299":300,"_2084":304,"_2085":129,"_306":-5,"_92":2086},{"_92":2057,"_299":2083,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2082,"_164":1814,"_2059":2063,"_2060":-5},{"_92":2057,"_299":2081,"_164":1228,"_2059":2063,"_2060":2076},{"_92":2057,"_299":2080,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2079,"_164":1814,"_2059":2063,"_2060":-5},{"_92":2057,"_299":2078,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2077,"_164":1814,"_2059":2063,"_2060":-5},{"_92":2057,"_299":2075,"_164":1228,"_2059":2063,"_2060":2076},{"_92":2057,"_299":2074,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2066,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2073,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2072,"_164":1814,"_2059":2063,"_2060":-5},{"_92":2057,"_299":2071,"_164":1814,"_2059":2063,"_2060":-5},{"_92":2057,"_299":2070,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2069,"_164":1814,"_2059":2063,"_2060":-5},{"_92":2057,"_299":2068,"_164":1814,"_2059":2063,"_2060":-5},{"_92":2057,"_299":2067,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2066,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2065,"_164":1580,"_2059":2063,"_2060":-5},{"_92":2057,"_299":2064,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2062,"_164":1580,"_2059":2063,"_2060":-5},{"_92":2057,"_299":2061,"_164":-5,"_2059":-5,"_2060":-5},{"_92":2057,"_299":2058,"_164":-5,"_2059":-5,"_2060":-5},"pull_request_comment","Acknowledging CodeRabbit's outside-diff-range finding on `materialize-interrupted-stream.ts` (session-settle UPDATE treated as successful even when it matches zero rows) — fixed in commit 2f11e1f20: now checks `(result.rowCount ?? 0) > 0`, matching the existing conditional-update pattern in `compaction-repository.ts`. Added regression tests for both the zero-rowCount case and the defensive `?? 0` fallback.","side","line","\n\n> [!CAUTION]\n> Some comments are outside the diff and can’t be posted inline due to platform limitations.\n> \n> \n> \n>

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⚠️ Outside diff range comments (1)

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apps/web/src/lib/ai/core/materialize-interrupted-stream.ts (1)
\n> \n> `174-205`: _🗄️ Data Integrity & Integration_ | _🟡 Minor_ | _⚡ Quick win_\n> \n> **apps/web/src/lib/ai/core/materialize-interrupted-stream.ts:174-205 — Treat a zero-row settle as unsuccessful** \n> `db.update(...).where(...)` can return 0 when another path already terminalized the row. Check `rowCount` and only return `true` when this pass actually settles the session; add a regression test for the zero-row case.\n> \n>
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🤖 Prompt for AI Agents
\n> \n> ```\n> Verify each finding against current code. Fix only still-valid issues, skip the\n> rest with a brief reason, keep changes minimal, and validate.\n> \n> In `@apps/web/src/lib/ai/core/materialize-interrupted-stream.ts` around lines 174\n> - 205, Update the session-settling update in materializeInterruptedStream to\n> inspect its affected-row count and set settled to false when the conditional\n> update changes zero rows, including when another path already terminalized the\n> session. Preserve the existing exception handling and return settled only as\n> true when this invocation actually updates the row, and add a regression test\n> covering the zero-row case.\n> ```\n> \n>
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🤖 Prompt for all review comments with AI agents

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ℹ️ Review info

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⚙️ Run configuration

\n\n**Configuration used**: defaults\n\n**Review profile**: CHILL\n\n**Plan**: Pro\n\n**Run ID**: `d5aa5a9e-984d-4360-bd8f-804ac4497c18`\n\n

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📥 Commits

\n\nReviewing files that changed from the base of the PR and between fb8f3349c9af6a002f41e4c0acbbd14adf3e4374 and 9b87730ac0ccfc12f4a237c9b1387f2c37e4489e.\n\n

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🚧 Files skipped from review as they are similar to previous changes (5)

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\n\n","Fixed in commit 9b87730ac (pushed before this comment was surfaced to me): `materializeInterruptedStream` now returns `Promise` (true only if both the message write and the session-row settle succeeded), and the `Promise.all` in this reconcile path now filters `provablyDead` by actual success before contributing to `locallyReconciled`. Also extended the same fix to the sibling paths this exact gap affected: `reconcileDeadStreamRows` (stream-abort-mark.ts) now returns `Promise` — the messageIds it actually materialized — and the cross-instance branch here now sets `remotelyReconciled` from that return value instead of from `decideAbortOutcome`'s eligibility judgment. Added regression tests for partial-failure batches in both `stream-takeover.test.ts` and `stream-abort-mark.test.ts`. Leaving open for reviewer verification per this session's convention.\n","RIGHT","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `fb8f3349c9`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Report dead rows reconciled only after materialization succeeds**\n\nWhen a provably-dead row reaches this path and `materializeInterruptedStream` cannot write the interrupted message, that helper catches/logs and returns without settling the session row, leaving it `status='streaming'`. This `Promise.all` has no success signal, but the function later includes every id from `reconcile` in `allReconciled`, so a transient DB/write failure is reported and logged as successfully reconciled even though the row remains a retryable ghost; the previous update path returned `reconciled: []` on this partial failure. Please have materialization return whether it actually settled before counting the id as reconciled.\n\nUseful? React with 👍 / 👎.","@codex review","Acknowledging CodeRabbit's accessibility nitpick (icon-only retry button relying on `title` alone) — fixed in commit fb8f3349c: added explicit `aria-label=\"Retry this message\"` to both MessageRenderer.tsx and CompactMessageRenderer.tsx's new retry buttons.","Fixed in commit c6e046b51 (pushed before this comment was surfaced to me): added `startedAt: Date` to `MaterializableStreamRow` and used it as `createdAt` for the defensive insert-if-missing branch on both table variants, instead of reap-time `now`. Threaded `startedAt` through all three call sites — `stream-takeover.ts` and the active-streams lazy sweep already had it in hand from their existing SELECTs; added it as a new selected column to `reconcileDeadStreamRows`'s query in `stream-abort-mark.ts`. Added a dedicated test (`materialize-interrupted-stream.test.ts`, \"uses the stream's actual start time, not reap time, as createdAt for a newly-inserted row\") plus a threading test in `stream-takeover.test.ts` confirming the row's real `startedAt` reaches the call, not takeover time. Leaving open for reviewer verification per this session's convention.\n","Fixed in commit c6e046b51 (pushed before this comment was surfaced to me): tightened the guard from `ne(status, 'complete')` to `eq(status, 'streaming')` on both the `messages` and `chat_messages` conflict-update branches. This makes it a true compare-and-swap — a row leaves 'streaming' exactly once, so this can never re-touch an already-terminal row whether it landed at 'complete' or 'interrupted' by the normal path. Added regression tests in `materialize-interrupted-stream.test.ts` simulating the guard against an already-'interrupted' row (in addition to the existing already-'complete' case) confirming the write is a no-op. Leaving open for reviewer verification per this session's convention.","\n\n

🧹 Nitpick comments (1)

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apps/web/src/components/ai/shared/chat/MessageRenderer.tsx (1)
\n\n`447-455`: _📐 Maintainability & Code Quality_ | _🔵 Trivial_ | _⚡ Quick win_\n\n**Provide an explicit accessible name for the icon-only retry button.** \n\nWhile the `title` attribute gives a visual tooltip and can sometimes act as a fallback, explicitly setting an `aria-label` ensures all screen readers can consistently identify the control.\n- `apps/web/src/components/ai/shared/chat/MessageRenderer.tsx#L447-L455`: Add `aria-label=\"Retry this message\"` to the Button props.\n- `apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx#L445-L453`: Add `aria-label=\"Retry this message\"` to the Button props here as well.\n\n
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🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@apps/web/src/components/ai/shared/chat/MessageRenderer.tsx` around lines 447\n- 455, Add an explicit aria-label of “Retry this message” to the icon-only retry\nButton in MessageRenderer.tsx at lines 447-455 and CompactMessageRenderer.tsx at\nlines 445-453, while preserving the existing title and retry behavior.\n```\n\n
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🤖 Prompt for all review comments with AI agents

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ℹ️ Review info

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⚙️ Run configuration

\n\n**Configuration used**: defaults\n\n**Review profile**: CHILL\n\n**Plan**: Pro\n\n**Run ID**: `631821f3-2f9a-4cca-b97b-7ec984a83f61`\n\n

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📥 Commits

\n\nReviewing files that changed from the base of the PR and between 06e95f351a860d760f9f316a97e4ba4e9ad976bf and 9470bd29afdb052e723641f710f430a7a528631a.\n\n

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📒 Files selected for processing (12)

\n\n* `apps/web/src/app/api/ai/chat/active-streams/__tests__/route.test.ts`\n* `apps/web/src/app/api/ai/chat/active-streams/route.ts`\n* `apps/web/src/components/ai/shared/chat/CompactMessageRenderer.tsx`\n* `apps/web/src/components/ai/shared/chat/MessageRenderer.tsx`\n* `apps/web/src/components/ai/shared/chat/__tests__/CompactMessageRenderer.interrupted.test.tsx`\n* `apps/web/src/components/ai/shared/chat/__tests__/MessageRenderer.interrupted.test.tsx`\n* `apps/web/src/lib/ai/core/__tests__/materialize-interrupted-stream.test.ts`\n* `apps/web/src/lib/ai/core/__tests__/stream-takeover.test.ts`\n* `apps/web/src/lib/ai/core/materialize-interrupted-stream.ts`\n* `apps/web/src/lib/ai/core/stream-abort-mark.ts`\n* `apps/web/src/lib/ai/core/stream-takeover.ts`\n* `apps/web/src/services/api/__tests__/ai-undo-service.test.ts`\n\n

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🚧 Files skipped from review as they are similar to previous changes (7)

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\n\n","**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Use stream start time for inserted materialized messages**\n\nWhen this materializer has to insert a missing assistant row, such as a crash after the stream-session insert but before the placeholder message insert, `createdAt: now` timestamps the recovered reply at reap/takeover time. A user's follow-up message is saved before takeover runs, so the recovered assistant response can sort after that follow-up instead of at its original stream position. Carry the stream row's `startedAt` into materialization and use it for the inserted message timestamp.\n\nUseful? React with 👍 / 👎.","**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Don't overwrite interrupted rows during materialization**\n\nWhen the normal abort/onFinish path has already saved the assistant row as `status='interrupted'` but the fire-and-forget `ai_stream_sessions` terminal update fails, the stream row remains eligible for a later dead-row sweep. This guard, and the identical global-table guard above, only protects `complete`, so the sweep can overwrite that terminal interrupted message (potentially fuller onFinish content or a user edit) with the older debounced `parts` snapshot. Restrict the conflict update to the streaming placeholder instead of all non-complete rows.\n\nUseful? React with 👍 / 👎.","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `4ff8b9c723`\n \n\n

ℹ️ About Codex in GitHub

","Acknowledging CodeRabbit's 3 nitpick suggestions (sequential-vs-concurrent materialization in `stream-abort-mark.ts`'s `reconcileDeadStreamRows` and `stream-takeover.ts`'s reconcile loop) — these were already fixed in commit 4ff8b9c72 (pushed as part of the same convergence pass, before these comments were surfaced to me): both loops now use `Promise.all` over independent rows instead of sequential `for...await`, since `materializeInterruptedStream` never throws and each row is independent. No separate review thread exists for these (they were nitpicks inside the review summary, not inline comments), so acknowledging here instead.","Fixed in commit 4ff8b9c72 (pushed before this comment was surfaced to me): the interrupted badge was moved OUT of `TextBlock`'s render (which only fires for the message's text-group blocks) and now renders at the message level in `MessageRenderer.tsx`, right after the `groupedParts.map(...)` loop closes — unconditional on which kind of group is last (text, tool-run, tool, file, or command). Added a regression test (`MessageRenderer.interrupted.test.tsx`, \"given an interrupted message with ONLY a tool part (no text ever arrived), still shows the badge\") that would have caught the original bug. Also discovered and fixed the same gap in `CompactMessageRenderer.tsx` (the actual sidebar/global-assistant surface), which had never received the badge treatment at all in the first pass — added parity coverage there too (`CompactMessageRenderer.interrupted.test.tsx`). Leaving this thread open for reviewer verification per this session's convention of not self-resolving fixes made during the same pass.",385,"Fixed in commit 4ff8b9c72 (pushed before this comment was surfaced to me): `materializeInterruptedStream` now runs `payload.uiMessage.parts` through the same `extractStructuredContentFromParts` pipeline `saveMessageToDatabase`/`saveGlobalAssistantMessageToDatabase` use, instead of persisting `payload.content` (plain concatenated text) directly. Both the `chatMessages` and `messages` branches now use `structuredContent`, so tool calls/results, file parts, and part ordering survive materialization and reload correctly via `convertDbMessageToUIMessage`. Added a regression test (`materialize-interrupted-stream.test.ts`, \"builds message content via the same structured-content pipeline...\") asserting the persisted content is the structured JSON envelope, not flat text. Leaving this thread open for reviewer verification per this session's convention of not self-resolving fixes made during the same pass.","**Actionable comments posted: 1**\n\n

🧹 Nitpick comments (3)

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apps/web/src/lib/ai/core/stream-abort-mark.ts (1)
\n\n`290-317`: _🚀 Performance & Scalability_ | _🔵 Trivial_ | _⚡ Quick win_\n\n**Consider materializing rows concurrently instead of sequentially.**\n\nThe `status='streaming'` re-check before materializing is a solid safeguard. However, the `for` loop awaits `materializeInterruptedStream(row)` one row at a time; since this function is documented to never throw, `Promise.all(rows.map(...))` would let independent rows materialize concurrently with no loss of fault isolation. This matters because this path runs as part of `takeOverConversationStreams`'s blocking send flow (via `awaitAbortSettled` → `reconcileDeadStreamRows`).\n\n\n\n
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⚡ Proposed refactor
\n\n```diff\n- for (const row of rows) {\n- await materializeInterruptedStream(row);\n- }\n+ await Promise.all(rows.map((row) => materializeInterruptedStream(row)));\n```\n
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🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@apps/web/src/lib/ai/core/stream-abort-mark.ts` around lines 290 - 317, Update\nthe row materialization loop in reconcileDeadStreamRows to invoke\nmaterializeInterruptedStream for all fetched rows concurrently via Promise.all,\npreserving the existing no-throw fault-isolation behavior and awaiting\ncompletion before returning.\n```\n\n
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apps/web/src/lib/ai/core/stream-takeover.ts (2)
\n\n`1-1`: _🚀 Performance & Scalability_ | _🔵 Trivial_ | _⚡ Quick win_\n\n**Sequential materialization loops in both reconciliation paths.** Both `takeOverConversationStreams` and `reconcileDeadStreamRows` process independent rows with `await materializeInterruptedStream(...)` one at a time inside a `for` loop, even though the function is documented to never throw. Since both loops sit on the takeover flow that can block a user's send, switching to `Promise.all` lets independent rows materialize concurrently without losing per-row fault isolation.\n- `apps/web/src/lib/ai/core/stream-takeover.ts#L125-149`: replace the `for (const messageId of reconcile) { ... await materializeInterruptedStream(...) }` loop with `await Promise.all(reconcile.map(...))`.\n- `apps/web/src/lib/ai/core/stream-abort-mark.ts#L290-317`: replace the `for (const row of rows) { await materializeInterruptedStream(row); }` loop with `await Promise.all(rows.map((row) => materializeInterruptedStream(row)))`.\n\n
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🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@apps/web/src/lib/ai/core/stream-takeover.ts` at line 1, Update both\nreconciliation loops, takeOverConversationStreams and reconcileDeadStreamRows,\nto materialize independent rows concurrently with Promise.all over map\ncallbacks. Preserve materializeInterruptedStream’s per-row fault isolation and\nexisting behavior while removing sequential awaits from each for loop.\n```\n\n
\n\n\n\n---\n\n`125-149`: _🚀 Performance & Scalability_ | _🔵 Trivial_ | _⚡ Quick win_\n\n**Same sequential-materialization pattern as `stream-abort-mark.ts`.**\n\nThis loop awaits `materializeInterruptedStream` one row at a time on the send-blocking takeover path. Since the function is documented to never throw, running these concurrently would reduce latency on the (rare but real) crashed-stream takeover path.\n\n\n\n
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⚡ Proposed refactor
\n\n```diff\n- const rowById = new Map(rows.map((r) => [r.messageId, r]));\n- for (const messageId of reconcile) {\n- const row = rowById.get(messageId);\n- if (!row) continue;\n- await materializeInterruptedStream({\n- messageId,\n- channelId,\n- conversationId,\n- userId: row.userId,\n- parts: row.parts,\n- });\n- }\n+ const rowById = new Map(rows.map((r) => [r.messageId, r]));\n+ await Promise.all(reconcile.map((messageId) => {\n+ const row = rowById.get(messageId);\n+ if (!row) return undefined;\n+ return materializeInterruptedStream({\n+ messageId,\n+ channelId,\n+ conversationId,\n+ userId: row.userId,\n+ parts: row.parts,\n+ });\n+ }));\n```\n
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🤖 Prompt for AI Agents
\n\n```\nVerify each finding against current code. Fix only still-valid issues, skip the\nrest with a brief reason, keep changes minimal, and validate.\n\nIn `@apps/web/src/lib/ai/core/stream-takeover.ts` around lines 125 - 149, Update\nthe reconciliation loop in the takeover path to materialize all rows\nconcurrently rather than awaiting each materializeInterruptedStream call\nsequentially. Preserve the existing row lookup and skip-missing-row behavior,\nand await completion of the full batch before continuing.\n```\n\n
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🤖 Prompt for all review comments with AI agents

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🪄 Autofix (Beta)

\n\nFix all unresolved CodeRabbit comments on this PR:\n\n- [ ] Push a commit to this branch (recommended)\n- [ ] Create a new PR with the fixes\n\n

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ℹ️ Review info

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⚙️ Run configuration

\n\n**Configuration used**: defaults\n\n**Review profile**: CHILL\n\n**Plan**: Pro\n\n**Run ID**: `a434bdf7-a8e1-4a87-aba4-2c614fc4522b`\n\n

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📥 Commits

\n\nReviewing files that changed from the base of the PR and between 117d33d577fd80c760fb69aa66f4a7f481ee276e and 06e95f351a860d760f9f316a97e4ba4e9ad976bf.\n\n

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📒 Files selected for processing (13)

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\n\n","_🩺 Stability & Availability_ | _🔴 Critical_ | _⚡ Quick win_\n\n

🧩 Analysis chain

🤖 Prompt for AI Agents

\n\n\n\n\n\n\n\n\n\n✅ Addressed in commit 4ff8b9c","\n### 💡 Codex Review\n\nHere are some automated review suggestions for this pull request.\n\n**Reviewed commit:** `06e95f351a`\n \n\n

ℹ️ About Codex in GitHub

","**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Show interrupted status when tools follow text**\n\nFor an interrupted assistant message whose final rendered group is a tool/file/command group (for example, the run is aborted after a tool result and before final prose), the preceding text block gets `isInterrupted={false}` because it is not the last group, and none of the non-text renderers display the badge. That makes `status: 'interrupted'` render like a normal completion in common tool-using aborts; compute the last text-group index or render a message-level interrupted footer instead.\n\nUseful? React with 👍 / 👎.","**_{_{![P2 Badge](https://img.shields.io/badge/P2-yellow?style=flat)}} Preserve structured parts when materializing streams**\n\nWhen a dead stream snapshot contains tool/data/file parts, persisting only `payload.content` here (and in the global branch above) drops the structured content envelope that `convertDbMessageToUIMessage` relies on to reconstruct non-text parts; the stored `toolCalls`/`toolResults` JSON is ignored on the plain-text fallback path, so interrupted transcripts lose tool calls/results and later model context sees only text. Use the same structured-content persistence path as `saveMessageToDatabase`/`saveGlobalAssistantMessageToDatabase` while keeping the `status != complete` guard.\n\nUseful? React with 👍 / 👎.","\n\n\n[![Review Change Stack](https://storage.googleapis.com/coderabbit_public_assets/review-stack-in-coderabbit-ui.svg)](https://app.coderabbit.ai/change-stack/2witstudios/PageSpace/pull/2077?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)\n\n\n\n\n

📝 Walkthrough

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🚥 Pre-merge checks | ✅ 4 | ❌ 1

✅ Passed checks (4 passed)

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✨ Finishing Touches

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📝 Generate docstrings

\n\n- [ ] Create stacked PR\n- [ ] Commit on current branch\n\n

🧪 Generate unit tests (beta)

\n\n- [ ] Create PR with unit tests\n- [ ] Commit unit tests in branch `pu/e2-interrupted`\n\n

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❤️ Share

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