{"type":"thinking_level_change","id":"8a830fa4","parentId":null,"timestamp":"2026-03-30T07:19:32.256Z","thinkingLevel":"off"}
{"type":"model_change","id":"b36137b5","parentId":"8a830fa4","timestamp":"2026-03-30T07:19:32.257Z","provider":"anthropic","modelId":"claude-opus-4-6"}
{"type":"custom_message","customType":"gsd-auto","content":"You are executing GSD auto-mode.\n\n## Working Directory\n\nYour working directory is `/home/aux/projects/content-to-kb-automator`. All file reads, writes, and shell commands MUST operate relative to this directory. Do NOT `cd` to any other directory.\n\n## UNIT: Complete Slice S04 (\"Article Versioning + Pipeline Tuning Metadata\") — Milestone M004\n\n## Your Role in the Pipeline\n\nExecutor agents built each task and wrote task summaries. You are the closer — verify the assembled work actually delivers the slice goal, then compress everything into a slice summary. After you finish, a **reassess-roadmap agent** reads your slice summary to decide if the remaining roadmap still makes sense. The slice summary is also the primary record of what this slice achieved — future slice researchers and planners read it as a dependency summary when their work builds on yours.\n\nWrite the summary for those downstream readers. What did this slice actually deliver? What patterns did it establish? What should the next slice know?\n\nAll relevant context has been preloaded below — the slice plan, all task summaries, and the milestone roadmap are inlined. Start working immediately without re-reading these files.\n\n## Inlined Context (preloaded — do not re-read these files)\n\n### Milestone Roadmap\nSource: `.gsd/milestones/M004/M004-ROADMAP.md`\n\n# M004: \n\n## Vision\nFix the immediate bugs (422 errors, creators page), apply a dark mode theme with cyan accents and fix mobile responsive issues, redesign the technique page to match the reference HTML (proper sections, signal chain blocks, key moments with video source), and introduce article versioning with pipeline tuning metadata for benchmarking extraction quality across prompt iterations.\n\n## Slice Overview\n| ID | Slice | Risk | Depends | Done | After this |\n|----|-------|------|---------|------|------------|\n| S01 | Fix API Bugs — Review Detail 422 + Creators Page | low | — | ✅ | Review detail page and creators page load without errors using real pipeline data |\n| S02 | Dark Theme + Cyan Accents + Mobile Responsive Fix | medium | — | ✅ | App uses dark theme with cyan accents, no horizontal scroll on mobile |\n| S03 | Technique Page Redesign + Video Source on Moments | medium | S01 | ✅ | Technique page matches reference HTML layout with video source on key moments, signal chain blocks, and proper section structure |\n| S04 | Article Versioning + Pipeline Tuning Metadata | high | S03 | ⬜ | Technique pages track version history with pipeline metadata; API returns version list |\n\n---\n\n### Slice Plan\nSource: `.gsd/milestones/M004/slices/S04/S04-PLAN.md`\n\n# S04: Article Versioning + Pipeline Tuning Metadata\n\n**Goal:** Technique pages track version history with pipeline metadata; re-running stage 5 snapshots the previous content before overwriting; API returns version list and version detail; frontend shows version count.\n**Demo:** After this: Technique pages track version history with pipeline metadata; API returns version list\n\n## Tasks\n- [x] **T01: Added TechniquePageVersion model, Alembic migration 002, pipeline metadata capture, and pre-overwrite snapshot hook in stage 5 synthesis** — Create the TechniquePageVersion SQLAlchemy model, Alembic migration, and the snapshot-on-write hook in stage 5 synthesis that captures existing page content + pipeline metadata before overwriting.\n\n## Failure Modes\n\n| Dependency | On error | On timeout | On malformed response |\n|------------|----------|-----------|----------------------|\n| PostgreSQL (migration) | Alembic raises — migration fails cleanly | N/A (local) | N/A |\n| Stage 5 sync session | Snapshot INSERT fails → log ERROR, continue with page update (best-effort versioning) | N/A (local DB) | N/A |\n| Prompt file hashing | FileNotFoundError → log WARNING, store empty hash in metadata | N/A | N/A |\n\n## Steps\n\n1. Add `TechniquePageVersion` model to `backend/models.py`: id (UUID PK), technique_page_id (FK to technique_pages.id, CASCADE), version_number (Integer, not null), content_snapshot (JSONB, not null), pipeline_metadata (JSONB, nullable), created_at (datetime). Add `sa_relationship` back to TechniquePage (versions list).\n\n2. Create Alembic migration `alembic/versions/002_technique_page_versions.py` following the exact pattern of `001_initial.py` (revision ID format, imports, upgrade/downgrade). The migration creates the `technique_page_versions` table with all columns and a composite index on `(technique_page_id, version_number)`.\n\n3. Add `_capture_pipeline_metadata()` helper function in `backend/pipeline/stages.py` that returns a dict with: model names (from settings), prompt file SHA-256 hashes (read each .txt file in prompts_path and hash), stage config (modalities). Use `hashlib.sha256` on file contents. Handle missing files gracefully (log warning, store empty hash).\n\n4. In `stage5_synthesis`, inside the `if existing:` block, BEFORE any attribute assignment on `existing`, capture the snapshot: read existing page's content fields (title, slug, topic_category, topic_tags, summary, body_sections, signal_chains, plugins, source_quality) into a dict. Compute `version_number = session.execute(select(func.count()).where(TechniquePageVersion.technique_page_id == existing.id)).scalar() + 1`. Create a `TechniquePageVersion` row with content_snapshot=snapshot_dict, pipeline_metadata=_capture_pipeline_metadata(), and add it to the session. Log at INFO level.\n\n5. Verify: run `alembic upgrade head` against test DB. Write a minimal manual test or rely on T02's integration tests.\n\n## Must-Haves\n\n- [ ] TechniquePageVersion model with correct columns and FK\n- [ ] Alembic migration creates technique_page_versions table\n- [ ] _capture_pipeline_metadata() hashes all prompt files and reads model config\n- [ ] Stage 5 snapshots BEFORE mutating existing page attributes\n- [ ] Version number is auto-incremented per technique_page_id\n- [ ] Snapshot contains all content fields (title, summary, body_sections, signal_chains, topic_tags, plugins, source_quality, topic_category)\n\n## Verification\n\n- `cd backend && python -c \"from models import TechniquePageVersion; print('Model OK')\"` exits 0\n- Alembic migration file exists and follows 001_initial.py pattern\n- `grep -q '_capture_pipeline_metadata' backend/pipeline/stages.py` confirms helper exists\n- `grep -q 'TechniquePageVersion' backend/pipeline/stages.py` confirms snapshot hook is wired\n\n## Observability Impact\n\n- Signals added: INFO log in stage 5 when version snapshot is created (includes version_number, page slug)\n- How a future agent inspects this: `SELECT * FROM technique_page_versions ORDER BY created_at DESC LIMIT 5`\n- Failure state exposed: ERROR log if snapshot INSERT fails (with exception details)\n  - Estimate: 45m\n  - Files: backend/models.py, alembic/versions/002_technique_page_versions.py, backend/pipeline/stages.py\n  - Verify: cd backend && python -c \"from models import TechniquePageVersion; print('Model OK')\" && test -f ../alembic/versions/002_technique_page_versions.py && grep -q '_capture_pipeline_metadata' pipeline/stages.py && grep -q 'TechniquePageVersion' pipeline/stages.py\n- [x] **T02: Added version list/detail API endpoints, Pydantic schemas, version_count on technique detail, and 6 integration tests** — Add Pydantic schemas for version responses, API endpoints for version list and version detail, extend TechniquePageDetail with version_count, and write integration tests covering the full flow.\n\n## Failure Modes\n\n| Dependency | On error | On timeout | On malformed response |\n|------------|----------|-----------|----------------------|\n| PostgreSQL query | SQLAlchemy raises → FastAPI returns 500 | N/A (local) | N/A |\n| Missing technique slug | Return 404 with clear message | N/A | N/A |\n| Missing version number | Return 404 with clear message | N/A | N/A |\n\n## Negative Tests\n\n- **Malformed inputs**: GET /techniques/nonexistent-slug/versions → 404; GET /techniques/{slug}/versions/999 → 404\n- **Boundary conditions**: Technique with zero versions → empty list response; version_count = 0 on fresh page\n\n## Steps\n\n1. Add Pydantic schemas to `backend/schemas.py`:\n   - `TechniquePageVersionSummary`: version_number (int), created_at (datetime), pipeline_metadata (dict | None)\n   - `TechniquePageVersionDetail`: version_number (int), content_snapshot (dict), pipeline_metadata (dict | None), created_at (datetime)\n   - `TechniquePageVersionListResponse`: items (list[TechniquePageVersionSummary]), total (int)\n   - Add `version_count: int = 0` field to `TechniquePageDetail`\n\n2. Add endpoints to `backend/routers/techniques.py`:\n   - `GET /{slug}/versions` — query TechniquePageVersion rows for the page, ordered by version_number DESC. Return TechniquePageVersionListResponse. 404 if slug not found.\n   - `GET /{slug}/versions/{version_number}` — return single TechniquePageVersionDetail. 404 if slug or version not found.\n\n3. Modify the existing `get_technique` endpoint to include `version_count` by counting TechniquePageVersion rows for the page.\n\n4. Write integration tests in `backend/tests/test_public_api.py`:\n   - Test version list returns empty for page with no versions\n   - Test version list returns versions after inserting a TechniquePageVersion row directly\n   - Test version detail returns correct content_snapshot\n   - Test version detail 404 for nonexistent version number\n   - Test technique detail includes version_count field\n   - Test versions endpoint 404 for nonexistent slug\n\n5. Run all existing tests to confirm no regressions.\n\n## Must-Haves\n\n- [ ] TechniquePageVersionSummary, TechniquePageVersionDetail, TechniquePageVersionListResponse schemas\n- [ ] version_count field on TechniquePageDetail\n- [ ] GET /{slug}/versions endpoint returns version list sorted by version_number desc\n- [ ] GET /{slug}/versions/{version_number} endpoint returns full content snapshot\n- [ ] 404 responses for missing slug or version number\n- [ ] Integration tests pass for all version endpoints\n- [ ] All existing tests still pass\n\n## Verification\n\n- `cd backend && python -m pytest tests/test_public_api.py -v` — all tests pass including new version tests\n- `cd backend && python -m pytest tests/ -v` — full test suite passes (no regressions)\n  - Estimate: 45m\n  - Files: backend/schemas.py, backend/routers/techniques.py, backend/tests/test_public_api.py\n  - Verify: cd backend && python -m pytest tests/test_public_api.py -v && python -m pytest tests/ -v --timeout=60\n- [x] **T03: Added TypeScript version types, fetchTechniqueVersions function, and version count display in technique page meta stats** — Add TypeScript types for version responses to the API client, fetch version count from the technique detail response, and display it in the technique page meta stats line.\n\n## Steps\n\n1. Update `frontend/src/api/public-client.ts`:\n   - Add `version_count: number` to `TechniquePageDetail` interface\n   - Add `TechniquePageVersionSummary` interface: { version_number: number, created_at: string, pipeline_metadata: Record<string, unknown> | null }\n   - Add `TechniquePageVersionListResponse` interface: { items: TechniquePageVersionSummary[], total: number }\n   - Add `fetchTechniqueVersions(slug: string)` function that calls GET /techniques/{slug}/versions\n\n2. Update `frontend/src/pages/TechniquePage.tsx`:\n   - The technique detail response now includes `version_count`. Display it in the meta stats line after moment count: `· N version(s)` (only show if version_count > 0).\n\n3. Run `npm run build` to verify zero TypeScript errors.\n\n## Must-Haves\n\n- [ ] TechniquePageDetail TypeScript interface includes version_count: number\n- [ ] fetchTechniqueVersions API function exists\n- [ ] Version count displayed in technique page meta stats (when > 0)\n- [ ] `npm run build` exits 0 with zero TypeScript errors\n\n## Verification\n\n- `cd frontend && npm run build` exits 0\n- `grep -q 'version_count' frontend/src/api/public-client.ts` confirms type added\n- `grep -q 'version_count' frontend/src/pages/TechniquePage.tsx` confirms display wired\n  - Estimate: 20m\n  - Files: frontend/src/api/public-client.ts, frontend/src/pages/TechniquePage.tsx\n  - Verify: cd frontend && npm run build && grep -q 'version_count' src/api/public-client.ts && grep -q 'version_count' src/pages/TechniquePage.tsx\n\n---\n\n### Requirements\nSource: `.gsd/REQUIREMENTS.md`\n\n# Requirements\n\n## R001 — Whisper Transcription Pipeline\n**Status:** validated\n**Description:** Desktop Python script that accepts video files (MP4/MKV), extracts audio via ffmpeg, runs Whisper large-v3 on RTX 4090, and outputs timestamped transcript JSON with segment-level timestamps and word-level timing. Must be resumable.\n**Validation:** Script processes a sample video and produces valid JSON with timestamped segments.\n**Primary Owner:** M001/S01\n\n## R002 — Transcript Ingestion API\n**Status:** validated\n**Description:** FastAPI endpoint that accepts transcript JSON uploads, creates/updates Creator and Source Video records, and stores transcript data in PostgreSQL. Handles new creator detection from folder names.\n**Validation:** POST transcript JSON → 200 OK, records created in DB, file stored on filesystem.\n**Primary Owner:** M001/S02\n\n## R003 — LLM-Powered Extraction Pipeline (Stages 2-5)\n**Status:** validated\n**Description:** Background worker pipeline: transcript segmentation → key moment extraction → classification/tagging → technique page synthesis. Uses OpenAI-compatible API with primary (DGX Sparks Qwen) and fallback (local Ollama) endpoints. Pipeline must be resumable per-video per-stage.\n**Validation:** End-to-end: transcript JSON in → technique pages with key moments, tags, and cross-references out.\n**Primary Owner:** M001/S03\n\n## R004 — Review Queue UI\n**Status:** validated\n**Description:** Admin interface for reviewing extracted key moments: approve, edit+approve, split, merge, reject. Organized by source video for contextual review. Includes mode toggle (review vs auto-publish).\n**Validation:** Admin can review, edit, and approve/reject moments; mode toggle controls whether new moments require review.\n**Primary Owner:** M001/S04\n\n## R005 — Search-First Web UI\n**Status:** validated\n**Description:** Landing page with prominent search bar, live typeahead (results after 2-3 chars), scope toggle (All/Topics/Creators), and two navigation cards (Topics, Creators). Recently added section. Search powered by Qdrant semantic search with keyword fallback.\n**Validation:** User types query → results appear within 500ms, grouped by type, with clickable navigation.\n**Primary Owner:** M001/S05\n\n## R006 — Technique Page Display\n**Status:** validated\n**Description:** Core content unit: header (tags, title, creator, meta), study guide prose (organized by sub-aspects with signal chain blocks and quotes), key moments index (timestamped list), related techniques, plugins referenced. Amber banner for livestream-sourced content.\n**Validation:** Technique page renders with all sections populated from synthesized data.\n**Primary Owner:** M001/S05\n\n## R007 — Creators Browse Page\n**Status:** validated\n**Description:** Filterable creator list with genre filter pills, type-to-narrow, sort options (randomized default, alphabetical, view count). Each row: name, genre tags, technique count, video count, view count. Links to creator detail page.\n**Validation:** Page loads with randomized order, genre filtering works, clicking row navigates to creator detail.\n**Primary Owner:** M001/S05\n\n## R008 — Topics Browse Page\n**Status:** validated\n**Description:** Two-level topic hierarchy (6 top-level categories → sub-topics). Filter input, genre filter pills. Each sub-topic shows technique count and creator count. Clicking sub-topic shows technique pages.\n**Validation:** Hierarchy renders, filtering works, sub-topic links show correct technique pages.\n**Primary Owner:** M001/S05\n\n## R009 — Qdrant Vector Search Integration\n**Status:** validated\n**Description:** Embed key moment summaries, technique page content, and transcript segments in Qdrant using configurable embedding model (nomic-embed-text default). Power semantic search with metadata filtering.\n**Validation:** Semantic search returns relevant results for natural language queries; embeddings update when content changes.\n**Primary Owner:** M001/S03\n\n## R010 — Docker Compose Deployment\n**Status:** validated\n**Description:** Single docker-compose.yml packaging API, web UI, PostgreSQL, and worker services. Follows XPLTD conventions: bind mounts at /vmPool/r/services/, compose at /vmPool/r/compose/chrysopedia/, xpltd_chrysopedia project name, dedicated Docker network.\n**Validation:** `docker compose up -d` brings up all services; data persists across restarts.\n**Primary Owner:** M001/S01\n\n## R011 — Canonical Tag System\n**Status:** validated\n**Description:** Editable canonical tag list (config file) with aliases. Pipeline references tags during classification. New tags can be proposed by LLM and queued for admin approval or auto-added within existing categories.\n**Validation:** Tag list is editable; pipeline uses canonical tags consistently; alias normalization works.\n**Primary Owner:** M001/S03\n\n## R012 — Incremental Content Addition\n**Status:** validated\n**Description:** System handles ongoing content: new videos processed through pipeline, new creators auto-detected, existing technique pages updated when new moments are added for same creator+topic.\n**Validation:** Adding a new video for an existing creator updates their technique pages; new creator folder creates new Creator record.\n**Primary Owner:** M001/S03\n\n## R013 — Prompt Template System\n**Status:** validated\n**Description:** Extraction prompts (stages 2-5) stored as editable configuration files, not hardcoded. Admin can edit prompts and re-run extraction on specific or all videos for calibration.\n**Validation:** Prompt files are editable; re-processing a video with updated prompts produces different output.\n**Primary Owner:** M001/S03\n\n## R014 — Creator Equity\n**Status:** validated\n**Description:** No creator is privileged in the UI. Default sort on Creators page is randomized on every page load. All creators get equal visual weight.\n**Validation:** Refreshing Creators page shows different order each time; no creator gets larger/bolder display.\n**Primary Owner:** M001/S05\n\n## R015 — 30-Second Retrieval Target\n**Status:** active\n**Description:** A producer mid-session can find a specific technique in under 30 seconds from Alt+Tab to reading the key insight.\n**Validation:** Timed test: Alt+Tab → search → read technique → under 30 seconds.\n**Primary Owner:** M001/S05\n\n---\n\n### Project Knowledge\nSource: `.gsd/KNOWLEDGE.md`\n\n# KNOWLEDGE\n\n## SQLAlchemy column names that shadow ORM functions\n\n**Context:** If a model has a column named `relationship` (or any other ORM function name like `query`, `metadata`), Python resolves the name to the column's `MappedColumn` descriptor within the class body. This causes `relationship(...)` calls below it to fail with \"MappedColumn object is not callable\".\n\n**Fix:** Import with an alias: `from sqlalchemy.orm import relationship as sa_relationship` and use `sa_relationship(...)` throughout. Alternatively, rename the database column, but the spec defines `relationship` as the column name so we preserved it.\n\n## Docker Compose variable interpolation and `:?` syntax\n\n**Context:** `${VAR:?error message}` in docker-compose.yml makes `docker compose config` fail when the variable is unset, even if `env_file: required: false` is used. The `required: false` only controls whether the `.env` file must exist — it does NOT provide defaults for variables referenced with `:?`.\n\n**Fix:** Use `${VAR:-default}` for variables that need a fallback, or ensure the variable is always set in the environment.\n\n## Host port 8000 conflict with kerf-engine\n\n**Context:** The kerf-engine Docker container (`kerf-engine-kerf-engine-1`) binds to `0.0.0.0:8000`. When testing the Chrysopedia API locally (outside Docker), curl requests to `localhost:8000` hit the kerf-engine container instead of the local uvicorn process, even when uvicorn binds to `127.0.0.1:8000`.\n\n**Fix:** Use an alternate port (e.g., 8001) for local testing. In Docker Compose, chrysopedia-api maps `127.0.0.1:8000:8000` which is fine because it goes through Docker's port forwarding, but will conflict with kerf-engine if both stacks run simultaneously. Consider changing one project's external port mapping.\n\n## asyncpg rejects timezone-aware datetimes for TIMESTAMP WITHOUT TIME ZONE columns\n\n**Context:** SQLAlchemy models using `default=datetime.now(timezone.utc)` produce timezone-aware Python datetimes. When the PostgreSQL column type is `TIMESTAMP WITHOUT TIME ZONE` (the default), asyncpg raises `DataError: can't subtract offset-naive and offset-aware datetimes`. This only surfaces when running against a real PostgreSQL database — SQLite-based tests won't catch it.\n\n**Fix:** Use `datetime.now(timezone.utc).replace(tzinfo=None)` in the `_now()` helper, or change the column type to `TIMESTAMP WITH TIME ZONE`. We chose the former since the existing schema uses naive timestamps.\n\n## asyncpg NullPool required for pytest-asyncio integration tests\n\n**Context:** When using a session-scoped SQLAlchemy async engine with asyncpg in pytest-asyncio tests, the connection pool reuses connections across fixtures and test functions. This causes `InterfaceError: cannot perform operation: another operation is in progress` because the ASGI test client's session holds a connection while cleanup/verification fixtures try to use the same pool.\n\n**Fix:** Use `poolclass=NullPool` when creating the test engine. Each connection is created fresh and immediately closed, eliminating contention. Performance cost is negligible for test suites.\n\n## Testing Celery tasks that use sync SQLAlchemy: patch module-level globals\n\n**Context:** Pipeline stages in `pipeline/stages.py` create their own sync SQLAlchemy engine/session via module-level `_engine` and `_SessionLocal` globals (because Celery is sync, not async). Tests need to redirect these to the test database, but the engine is created lazily at module scope.\n\n**Fix:** Patch the module globals directly: `unittest.mock.patch.object(stages, '_engine', test_engine)` and `unittest.mock.patch.object(stages, '_SessionLocal', test_session_factory)`. This redirects all DB access in stage functions to the test database without modifying production code.\n\n## Lazy imports in FastAPI handlers defeat simple mock patching\n\n**Context:** When a FastAPI handler imports a function lazily (inside the function body) like `from pipeline.stages import run_pipeline`, patching `routers.ingest.run_pipeline` has no effect because the name is re-bound on every call from the source module.\n\n**Fix:** Patch at the source module: `unittest.mock.patch('pipeline.stages.run_pipeline')`. The lazy import will pick up the mock from the source module. This applies to any handler that uses lazy imports to avoid circular dependencies at module load time.\n\n## Separate async/sync clients for FastAPI vs Celery\n\n**Context:** The Chrysopedia backend has both sync Celery tasks (pipeline stages using `openai.OpenAI`, `QdrantClient`, sync SQLAlchemy) and async FastAPI handlers. Reusing sync clients in async handlers blocks the event loop; reusing async clients in Celery risks nested event loop errors.\n\n**Fix:** Create separate client classes: `SearchService` (async, for FastAPI request path) wraps `openai.AsyncOpenAI` and `AsyncQdrantClient`. The pipeline's `EmbeddingClient` and `QdrantManager` (sync, for Celery) remain untouched. This doubles the client code surface but eliminates the async/sync mismatch class of bugs entirely.\n\n## Mocking SearchService at the router dependency level for tests\n\n**Context:** The search endpoint creates a `SearchService` instance internally. Testing search results with real embedding API and Qdrant is fragile (external dependencies). Mocking individual `openai.AsyncOpenAI` or `AsyncQdrantClient` is complex.\n\n**Fix:** Mock `SearchService` at the router level by patching the service instance in the endpoint function. This gives full control over search results in tests without complex async mock setup. Used in `test_search.py` — mock returns canned `SearchResponse` dicts.\n\n## Frontend detail page without a single-resource GET endpoint\n\n**Context:** The review queue backend has `GET /review/queue` (list, paginated) but no `GET /review/moments/{id}` for fetching a single moment. The MomentDetail page needs to display one specific moment by ID from the URL params.\n\n**Fix:** MomentDetail fetches the full queue with `limit=500` and filters client-side by ID. This works for a single-admin tool with small datasets but would not scale. If the moment count grows significantly, add a dedicated `GET /review/moments/{id}` endpoint to the review router.\n\n## Stage 4 classification data stored in Redis (not DB columns)\n\n**Context:** The KeyMoment SQLAlchemy model doesn't have `topic_tags` or `topic_category` columns. Stage 4 classification needs somewhere to store per-moment tag assignments that stage 5 can read.\n\n**Fix:** Store classification results in Redis under key `chrysopedia:classification:{video_id}` with a 24-hour TTL. Stage 5 reads from Redis. This avoids schema migrations during initial pipeline development. The data is ephemeral — if Redis loses it, re-running stage 4 regenerates it.\n\n## QdrantManager uses random UUIDs for point IDs\n\n**Context:** `QdrantManager.upsert_technique_pages()` and `upsert_key_moments()` generate `uuid4()` for each Qdrant point. Re-indexing the same content creates duplicate points rather than updating existing ones.\n\n**Fix (deferred):** Use deterministic UUIDs based on content hash (e.g., `uuid5(NAMESPACE, f\"{technique_slug}:{section}\")`) so re-indexing overwrites the same points. This should be addressed before running the pipeline on production data to avoid index bloat.\n\n## Non-blocking side-effect pattern for external service calls in pipelines\n\n**Context:** Celery pipeline stages that call external services (embedding API, Qdrant) should not fail the entire pipeline if those services are down. Stage 6 (embed_and_index) is valuable but not critical — the pipeline's primary output (technique pages in PostgreSQL) doesn't depend on it.\n\n**Fix:** Use `max_retries=0` and a catch-all exception handler that logs WARNING and returns without raising. The pipeline orchestrator chains stage 6 after stage 5 but a failure there doesn't prevent `processing_status` from reaching its final state. This pattern applies to any \"best-effort enrichment\" stage in a pipeline.\n\n## Container healthcheck tool availability varies by base image\n\n**Context:** Qdrant (distroless-ish), Ollama, and nginx-alpine images don't have curl or wget. Standard healthcheck patterns like `curl -f http://localhost:PORT/health` fail silently inside these containers.\n\n**Fix by image:**\n- **Ollama:** Use `ollama list` (built-in CLI)\n- **Qdrant:** Use `bash -c 'echo > /dev/tcp/localhost/6333'` (bash is available)\n- **nginx-alpine:** Use `curl` (available) but NOT busybox `wget` (fails on localhost)\n- **Celery worker (same image as API):** Use `celery -A worker inspect ping` instead of HTTP healthcheck\n\n**Rule:** Always `docker exec <container> <healthcheck-cmd>` to verify the command works before deploying.\n\n## XPLTD domain setup flow\n\n**Context:** Adding a new external domain (like chrysopedia.com) to the XPLTD infrastructure requires three steps across two machines.\n\n**Flow:**\n1. **AdGuard on ub01 (10.0.0.10):** Add DNS rewrite via API: `POST /control/rewrite/add` with `{domain, answer: \"10.0.0.9\"}`\n2. **nginx on nuc01 (10.0.0.9):** Create server block in `/etc/nginx/sites-enabled/{domain}.conf` with `proxy_pass http://10.0.0.10:{port}`\n3. **Certbot on nuc01:** `sudo certbot --nginx -d {domain}` (requires external DNS A record or CNAME pointing to public IP first)\n\n**Note:** The AD DNS servers (10.0.0.15/.16) may already have CNAME entries for domains. Check `nslookup {domain} 10.0.0.15` before assuming setup is needed. ub01's resolv.conf uses AD DNS, not AdGuard, so `curl {domain}` from ub01 requires the AD DNS chain to resolve.\n\n## Alembic env.py sys.path needs both local and Docker paths\n\n**Context:** Alembic's env.py imports from `database` and `models`, which live in `backend/` locally but at `/app/` (the WORKDIR) inside Docker. The original `sys.path.insert(0, \"../backend\")` works locally but fails in Docker.\n\n**Fix:** Add both paths: `sys.path.insert(0, os.path.join(os.path.dirname(__file__), \"..\", \"backend\"))` AND `sys.path.insert(0, os.path.join(os.path.dirname(__file__), \"..\"))`. The second resolves to `/app/` inside Docker.\n\n---\n\n### Task Summary: T01\nSource: `.gsd/milestones/M004/slices/S04/tasks/T01-SUMMARY.md`\n\n---\nid: T01\nparent: S04\nmilestone: M004\nprovides: []\nrequires: []\naffects: []\nkey_files: [\"backend/models.py\", \"alembic/versions/002_technique_page_versions.py\", \"backend/pipeline/stages.py\"]\nkey_decisions: [\"Version snapshot is best-effort — INSERT failure logs ERROR but does not block page update\", \"source_quality enum stored as string value in snapshot for JSON serialization\", \"Composite unique index on (technique_page_id, version_number) enforces ordering at DB level\"]\npatterns_established: []\ndrill_down_paths: []\nobservability_surfaces: []\nduration: \"\"\nverification_result: \"All four verification checks pass: model import OK, migration file exists, _capture_pipeline_metadata grep found, TechniquePageVersion grep found in stages.py. Additionally verified all 6 columns present on model, all 9 content fields in snapshot dict, and correct ordering of snapshot vs mutation in source.\"\ncompleted_at: 2026-03-30T07:07:13.929Z\nblocker_discovered: false\n---\n\n# T01: Added TechniquePageVersion model, Alembic migration 002, pipeline metadata capture, and pre-overwrite snapshot hook in stage 5 synthesis\n\n> Added TechniquePageVersion model, Alembic migration 002, pipeline metadata capture, and pre-overwrite snapshot hook in stage 5 synthesis\n\n## What Happened\n---\nid: T01\nparent: S04\nmilestone: M004\nkey_files:\n  - backend/models.py\n  - alembic/versions/002_technique_page_versions.py\n  - backend/pipeline/stages.py\nkey_decisions:\n  - Version snapshot is best-effort — INSERT failure logs ERROR but does not block page update\n  - source_quality enum stored as string value in snapshot for JSON serialization\n  - Composite unique index on (technique_page_id, version_number) enforces ordering at DB level\nduration: \"\"\nverification_result: passed\ncompleted_at: 2026-03-30T07:07:13.929Z\nblocker_discovered: false\n\n[...truncated 26 sections]\n\n**Match effort to complexity.** A simple slice with 1-2 tasks needs a brief summary and lightweight verification. A complex slice with 5 tasks across multiple subsystems needs thorough verification and a detailed summary. Scale the work below accordingly.\n\nThen:\n1. Use the **Slice Summary** and **UAT** output templates from the inlined context above\n2. If a `GSD Skill Preferences` block is present in system context, use it and the `<available_skills>` catalog in your system prompt to decide which skills to load and follow for this unit, without relaxing required verification or artifact rules.\n3. Run all slice-level verification checks defined in the slice plan. All must pass before marking the slice done. If any fail, fix them first.\n4. If the slice plan includes observability/diagnostic surfaces, confirm they work. Skip this for simple slices that don't have observability sections.\n5. If the slice involved runtime behavior, fill the **Operational Readiness** section (Q8) in the slice summary: health signal, failure signal, recovery procedure, and monitoring gaps. Omit entirely for simple slices with no runtime concerns.\n6. If this slice produced evidence that a requirement changed status (Active → Validated, Active → Deferred, etc.), call `gsd_save_decision` with scope=\"requirement\", decision=\"{requirement-id}\", choice=\"{new-status}\", rationale=\"{evidence}\". Do NOT write `.gsd/REQUIREMENTS.md` directly — the engine renders it from the database.\n7. Write `/home/aux/projects/content-to-kb-automator/.gsd/milestones/M004/slices/S04/S04-SUMMARY.md` (compress all task summaries).\n8. Write `/home/aux/projects/content-to-kb-automator/.gsd/milestones/M004/slices/S04/S04-UAT.md` — a concrete UAT script with real test cases derived from the slice plan and task summaries. Include preconditions, numbered steps with expected outcomes, and edge cases. This must NOT be a placeholder or generic template — tailor every test case to what this slice actually built.\n9. Review task summaries for `key_decisions`. Append any significant decisions to `.gsd/DECISIONS.md` if missing.\n10. Review task summaries for patterns, gotchas, or non-obvious lessons learned. If any would save future agents from repeating investigation or hitting the same issues, append them to `.gsd/KNOWLEDGE.md`. Only add entries that are genuinely useful — don't pad with obvious observations.\n11. Call `gsd_complete_slice` with milestone_id, slice_id, the slice summary, and the UAT result. Do NOT manually mark the roadmap checkbox — the tool writes to the DB and renders the ROADMAP.md projection automatically.\n12. Do not run git commands — the system commits your changes and handles any merge after this unit succeeds.\n13. Update `.gsd/PROJECT.md` if it exists — refresh current state if needed.\n\n**You MUST call `gsd_complete_slice` with the slice summary and UAT content before finishing. The tool persists to both DB and disk and renders `/home/aux/projects/content-to-kb-automator/.gsd/milestones/M004/slices/S04/S04-SUMMARY.md` and `/home/aux/projects/content-to-kb-automator/.gsd/milestones/M004/slices/S04/S04-UAT.md` automatically.**\n\nWhen done, say: \"Slice S04 complete.\"","display":false,"id":"18d40e5c","parentId":"b36137b5","timestamp":"2026-03-30T07:19:32.259Z"}
{"type":"message","id":"46c83ded","parentId":"18d40e5c","timestamp":"2026-03-30T07:19:36.722Z","message":{"role":"assistant","content":[{"type":"text","text":"\n\nI'll start by reading the task summaries I need, then run verification checks."},{"type":"toolCall","id":"toolu_01RmWoiSbV5WEMT3VAA3SwFk","name":"read","arguments":{"path":".gsd/milestones/M004/slices/S04/tasks/T01-SUMMARY.md"}},{"type":"toolCall","id":"toolu_01YWsty95VrH73eyMm85NfHd","name":"read","arguments":{"path":".gsd/milestones/M004/slices/S04/tasks/T02-SUMMARY.md"}},{"type":"toolCall","id":"toolu_0174QViQNQycKfLSSvNqjZ6p","name":"read","arguments":{"path":".gsd/milestones/M004/slices/S04/tasks/T03-SUMMARY.md"}}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":3,"output":213,"cacheRead":56783,"cacheWrite":9182,"totalTokens":66181,"cost":{"input":0.000015000000000000002,"output":0.005325,"cacheRead":0.0283915,"cacheWrite":0.0573875,"total":0.091119}},"stopReason":"toolUse","timestamp":1774855172258}}
{"type":"message","id":"4f10d900","parentId":"46c83ded","timestamp":"2026-03-30T07:19:36.725Z","message":{"role":"toolResult","toolCallId":"toolu_01RmWoiSbV5WEMT3VAA3SwFk","toolName":"read","content":[{"type":"text","text":"---\nid: T01\nparent: S04\nmilestone: M004\nprovides: []\nrequires: []\naffects: []\nkey_files: [\"backend/models.py\", \"alembic/versions/002_technique_page_versions.py\", \"backend/pipeline/stages.py\"]\nkey_decisions: [\"Version snapshot is best-effort — INSERT failure logs ERROR but does not block page update\", \"source_quality enum stored as string value in snapshot for JSON serialization\", \"Composite unique index on (technique_page_id, version_number) enforces ordering at DB level\"]\npatterns_established: []\ndrill_down_paths: []\nobservability_surfaces: []\nduration: \"\"\nverification_result: \"All four verification checks pass: model import OK, migration file exists, _capture_pipeline_metadata grep found, TechniquePageVersion grep found in stages.py. Additionally verified all 6 columns present on model, all 9 content fields in snapshot dict, and correct ordering of snapshot vs mutation in source.\"\ncompleted_at: 2026-03-30T07:07:13.929Z\nblocker_discovered: false\n---\n\n# T01: Added TechniquePageVersion model, Alembic migration 002, pipeline metadata capture, and pre-overwrite snapshot hook in stage 5 synthesis\n\n> Added TechniquePageVersion model, Alembic migration 002, pipeline metadata capture, and pre-overwrite snapshot hook in stage 5 synthesis\n\n## What Happened\n---\nid: T01\nparent: S04\nmilestone: M004\nkey_files:\n  - backend/models.py\n  - alembic/versions/002_technique_page_versions.py\n  - backend/pipeline/stages.py\nkey_decisions:\n  - Version snapshot is best-effort — INSERT failure logs ERROR but does not block page update\n  - source_quality enum stored as string value in snapshot for JSON serialization\n  - Composite unique index on (technique_page_id, version_number) enforces ordering at DB level\nduration: \"\"\nverification_result: passed\ncompleted_at: 2026-03-30T07:07:13.929Z\nblocker_discovered: false\n---\n\n# T01: Added TechniquePageVersion model, Alembic migration 002, pipeline metadata capture, and pre-overwrite snapshot hook in stage 5 synthesis\n\n**Added TechniquePageVersion model, Alembic migration 002, pipeline metadata capture, and pre-overwrite snapshot hook in stage 5 synthesis**\n\n## What Happened\n\nAdded TechniquePageVersion model to backend/models.py with UUID PK, FK to technique_pages (CASCADE), version_number, content_snapshot (JSONB), pipeline_metadata (JSONB), and created_at. Added versions relationship on TechniquePage. Created Alembic migration 002 with composite unique index on (technique_page_id, version_number). Added _capture_pipeline_metadata() helper that hashes prompt files and collects model/modality config. Modified stage5_synthesis to snapshot all 9 content fields before attribute mutations, with best-effort error handling.\n\n## Verification\n\nAll four verification checks pass: model import OK, migration file exists, _capture_pipeline_metadata grep found, TechniquePageVersion grep found in stages.py. Additionally verified all 6 columns present on model, all 9 content fields in snapshot dict, and correct ordering of snapshot vs mutation in source.\n\n## Verification Evidence\n\n| # | Command | Exit Code | Verdict | Duration |\n|---|---------|-----------|---------|----------|\n| 1 | `cd backend && python -c \"from models import TechniquePageVersion; print('Model OK')\"` | 0 | ✅ pass | 1000ms |\n| 2 | `test -f alembic/versions/002_technique_page_versions.py` | 0 | ✅ pass | 100ms |\n| 3 | `grep -q '_capture_pipeline_metadata' backend/pipeline/stages.py` | 0 | ✅ pass | 100ms |\n| 4 | `grep -q 'TechniquePageVersion' backend/pipeline/stages.py` | 0 | ✅ pass | 100ms |\n\n\n## Deviations\n\nNone.\n\n## Known Issues\n\nNone.\n\n## Files Created/Modified\n\n- `backend/models.py`\n- `alembic/versions/002_technique_page_versions.py`\n- `backend/pipeline/stages.py`\n\n\n## Deviations\nNone.\n\n## Known Issues\nNone.\n"}],"isError":false,"timestamp":1774855176724}}
{"type":"message","id":"2eb7a341","parentId":"4f10d900","timestamp":"2026-03-30T07:19:36.726Z","message":{"role":"toolResult","toolCallId":"toolu_01YWsty95VrH73eyMm85NfHd","toolName":"read","content":[{"type":"text","text":"---\nid: T02\nparent: S04\nmilestone: M004\nprovides: []\nrequires: []\naffects: []\nkey_files: [\"backend/schemas.py\", \"backend/routers/techniques.py\", \"backend/tests/test_public_api.py\"]\nkey_decisions: [\"Version list returns all versions without pagination — version count per page expected to be small\", \"Version endpoints resolve slug first then query versions, 404 if slug not found (consistent with existing pattern)\"]\npatterns_established: []\ndrill_down_paths: []\nobservability_surfaces: []\nduration: \"\"\nverification_result: \"All 6 new version tests pass. All 8 pre-existing technique/topic tests pass (no regressions). 4 slice-level verification checks all pass: model import, migration file exists, _capture_pipeline_metadata grep, TechniquePageVersion grep in stages.py.\"\ncompleted_at: 2026-03-30T07:17:34.668Z\nblocker_discovered: false\n---\n\n# T02: Added version list/detail API endpoints, Pydantic schemas, version_count on technique detail, and 6 integration tests\n\n> Added version list/detail API endpoints, Pydantic schemas, version_count on technique detail, and 6 integration tests\n\n## What Happened\n---\nid: T02\nparent: S04\nmilestone: M004\nkey_files:\n  - backend/schemas.py\n  - backend/routers/techniques.py\n  - backend/tests/test_public_api.py\nkey_decisions:\n  - Version list returns all versions without pagination — version count per page expected to be small\n  - Version endpoints resolve slug first then query versions, 404 if slug not found (consistent with existing pattern)\nduration: \"\"\nverification_result: passed\ncompleted_at: 2026-03-30T07:17:34.668Z\nblocker_discovered: false\n---\n\n# T02: Added version list/detail API endpoints, Pydantic schemas, version_count on technique detail, and 6 integration tests\n\n**Added version list/detail API endpoints, Pydantic schemas, version_count on technique detail, and 6 integration tests**\n\n## What Happened\n\nAdded three Pydantic schemas (TechniquePageVersionSummary, TechniquePageVersionDetail, TechniquePageVersionListResponse) and version_count field to TechniquePageDetail. Added GET /{slug}/versions and GET /{slug}/versions/{version_number} endpoints to the techniques router with proper 404 handling. Modified get_technique to count version rows. Wrote 6 integration tests covering empty list, populated list with DESC ordering, detail with content_snapshot, 404 for missing version, 404 for missing slug, and version_count on technique detail.\n\n## Verification\n\nAll 6 new version tests pass. All 8 pre-existing technique/topic tests pass (no regressions). 4 slice-level verification checks all pass: model import, migration file exists, _capture_pipeline_metadata grep, TechniquePageVersion grep in stages.py.\n\n## Verification Evidence\n\n| # | Command | Exit Code | Verdict | Duration |\n|---|---------|-----------|---------|----------|\n| 1 | `cd backend && python -m pytest tests/test_public_api.py -v -k version` | 0 | ✅ pass | 3200ms |\n| 2 | `cd backend && python -c \"from models import TechniquePageVersion; print('Model OK')\"` | 0 | ✅ pass | 500ms |\n| 3 | `test -f alembic/versions/002_technique_page_versions.py` | 0 | ✅ pass | 10ms |\n| 4 | `grep -q '_capture_pipeline_metadata' backend/pipeline/stages.py` | 0 | ✅ pass | 10ms |\n| 5 | `grep -q 'TechniquePageVersion' backend/pipeline/stages.py` | 0 | ✅ pass | 10ms |\n| 6 | `cd backend && python -c \"from schemas import TechniquePageVersionSummary, TechniquePageVersionDetail, TechniquePageVersionListResponse\"` | 0 | ✅ pass | 500ms |\n\n\n## Deviations\n\nNone.\n\n## Known Issues\n\n5 pre-existing creator test failures unrelated to versioning (API response format change). Pre-existing deadlock issues in test_search.py.\n\n## Files Created/Modified\n\n- `backend/schemas.py`\n- `backend/routers/techniques.py`\n- `backend/tests/test_public_api.py`\n\n\n## Deviations\nNone.\n\n## Known Issues\n5 pre-existing creator test failures unrelated to versioning (API response format change). Pre-existing deadlock issues in test_search.py.\n"}],"isError":false,"timestamp":1774855176726}}
{"type":"message","id":"5c2a6013","parentId":"2eb7a341","timestamp":"2026-03-30T07:19:36.729Z","message":{"role":"toolResult","toolCallId":"toolu_0174QViQNQycKfLSSvNqjZ6p","toolName":"read","content":[{"type":"text","text":"---\nid: T03\nparent: S04\nmilestone: M004\nprovides: []\nrequires: []\naffects: []\nkey_files: [\"frontend/src/api/public-client.ts\", \"frontend/src/pages/TechniquePage.tsx\"]\nkey_decisions: [\"Version count only displayed when > 0 to avoid cluttering pages with no version history\"]\npatterns_established: []\ndrill_down_paths: []\nobservability_surfaces: []\nduration: \"\"\nverification_result: \"Frontend builds with zero TypeScript errors (npm run build exits 0). Grep checks confirm version_count present in both API client and TechniquePage component. fetchTechniqueVersions function exists. All four slice-level verification checks pass.\"\ncompleted_at: 2026-03-30T07:19:26.621Z\nblocker_discovered: false\n---\n\n# T03: Added TypeScript version types, fetchTechniqueVersions function, and version count display in technique page meta stats\n\n> Added TypeScript version types, fetchTechniqueVersions function, and version count display in technique page meta stats\n\n## What Happened\n---\nid: T03\nparent: S04\nmilestone: M004\nkey_files:\n  - frontend/src/api/public-client.ts\n  - frontend/src/pages/TechniquePage.tsx\nkey_decisions:\n  - Version count only displayed when > 0 to avoid cluttering pages with no version history\nduration: \"\"\nverification_result: passed\ncompleted_at: 2026-03-30T07:19:26.622Z\nblocker_discovered: false\n---\n\n# T03: Added TypeScript version types, fetchTechniqueVersions function, and version count display in technique page meta stats\n\n**Added TypeScript version types, fetchTechniqueVersions function, and version count display in technique page meta stats**\n\n## What Happened\n\nAdded version_count to TechniquePageDetail TypeScript interface, created TechniquePageVersionSummary and TechniquePageVersionListResponse interfaces mirroring backend schemas, and added fetchTechniqueVersions API function. Updated TechniquePage.tsx meta stats line to conditionally display version count when greater than zero using an array-join pattern.\n\n## Verification\n\nFrontend builds with zero TypeScript errors (npm run build exits 0). Grep checks confirm version_count present in both API client and TechniquePage component. fetchTechniqueVersions function exists. All four slice-level verification checks pass.\n\n## Verification Evidence\n\n| # | Command | Exit Code | Verdict | Duration |\n|---|---------|-----------|---------|----------|\n| 1 | `cd frontend && npm run build` | 0 | ✅ pass | 10700ms |\n| 2 | `grep -q 'version_count' frontend/src/api/public-client.ts` | 0 | ✅ pass | 10ms |\n| 3 | `grep -q 'version_count' frontend/src/pages/TechniquePage.tsx` | 0 | ✅ pass | 10ms |\n| 4 | `grep -q 'fetchTechniqueVersions' frontend/src/api/public-client.ts` | 0 | ✅ pass | 10ms |\n| 5 | `cd backend && python -c \"from models import TechniquePageVersion; print('Model OK')\"` | 0 | ✅ pass | 500ms |\n| 6 | `test -f alembic/versions/002_technique_page_versions.py` | 0 | ✅ pass | 10ms |\n| 7 | `grep -q '_capture_pipeline_metadata' backend/pipeline/stages.py` | 0 | ✅ pass | 10ms |\n| 8 | `grep -q 'TechniquePageVersion' backend/pipeline/stages.py` | 0 | ✅ pass | 10ms |\n\n\n## Deviations\n\nNone.\n\n## Known Issues\n\nBackend integration tests cannot run locally (PostgreSQL on port 5433 is on ub01). The verification gate's test paths (tests/test_public_api.py) and flags (--timeout=60) were incorrect for this project structure.\n\n## Files Created/Modified\n\n- `frontend/src/api/public-client.ts`\n- `frontend/src/pages/TechniquePage.tsx`\n\n\n## Deviations\nNone.\n\n## Known Issues\nBackend integration tests cannot run locally (PostgreSQL on port 5433 is on ub01). The verification gate's test paths (tests/test_public_api.py) and flags (--timeout=60) were incorrect for this project structure.\n"}],"isError":false,"timestamp":1774855176728}}
{"type":"message","id":"3f0eccb9","parentId":"5c2a6013","timestamp":"2026-03-30T07:19:47.273Z","message":{"role":"assistant","content":[{"type":"text","text":"Good. All three tasks complete, no blockers. Let me run the slice-level verification checks now."},{"type":"toolCall","id":"toolu_015NfWED6ez6vNs3gWQaapsD","name":"async_bash","arguments":{"command":"cd /home/aux/projects/content-to-kb-automator && cd backend && python -c \"from models import TechniquePageVersion; print('Model OK')\"","label":"verify-model"}},{"type":"toolCall","id":"toolu_01MsryMkSbbhDdXjrcpsBaws","name":"async_bash","arguments":{"command":"cd /home/aux/projects/content-to-kb-automator && test -f alembic/versions/002_technique_page_versions.py && echo \"Migration file exists\"","label":"verify-migration"}},{"type":"toolCall","id":"toolu_015VB8ffQ8BZfnHBb85TaPgp","name":"async_bash","arguments":{"command":"cd /home/aux/projects/content-to-kb-automator && grep -q '_capture_pipeline_metadata' backend/pipeline/stages.py && echo \"Pipeline metadata helper found\"","label":"verify-metadata-helper"}},{"type":"toolCall","id":"toolu_019wzGofgPMSMsWM3FsRDgoe","name":"async_bash","arguments":{"command":"cd /home/aux/projects/content-to-kb-automator && grep -q 'TechniquePageVersion' backend/pipeline/stages.py && echo \"Snapshot hook wired\"","label":"verify-snapshot-hook"}},{"type":"toolCall","id":"toolu_01Am1eSXkkmy3yS6xNFzi6MY","name":"async_bash","arguments":{"command":"cd /home/aux/projects/content-to-kb-automator && cd frontend && npm run build 2>&1 | tail -5","label":"verify-frontend-build"}},{"type":"toolCall","id":"toolu_01NKLUphuCjEPteY7euUvpFS","name":"async_bash","arguments":{"command":"cd /home/aux/projects/content-to-kb-automator && grep -q 'version_count' frontend/src/api/public-client.ts && grep -q 'version_count' frontend/src/pages/TechniquePage.tsx && grep -q 'fetchTechniqueVersions' frontend/src/api/public-client.ts && echo \"Frontend types and display wired\"","label":"verify-frontend-types"}},{"type":"toolCall","id":"toolu_015EzBuaocAiV758UvNnSCbj","name":"async_bash","arguments":{"command":"cd /home/aux/projects/content-to-kb-automator && cd backend && python -c \"from schemas import TechniquePageVersionSummary, TechniquePageVersionDetail, TechniquePageVersionListResponse; print('Schemas OK')\"","label":"verify-schemas"}}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":1,"output":782,"cacheRead":65965,"cacheWrite":3633,"totalTokens":70381,"cost":{"input":0.000005,"output":0.01955,"cacheRead":0.0329825,"cacheWrite":0.02270625,"total":0.07524375}},"stopReason":"toolUse","timestamp":1774855176728}}
{"type":"message","id":"008cc65b","parentId":"3f0eccb9","timestamp":"2026-03-30T07:19:47.310Z","message":{"role":"toolResult","toolCallId":"toolu_015NfWED6ez6vNs3gWQaapsD","toolName":"async_bash","content":[{"type":"text","text":"Background job started: **bg_5e7c5219**\nCommand: `verify-model`\n\nUse `await_job` to get results when ready, or `cancel_job` to stop."}],"isError":false,"timestamp":1774855187308}}
{"type":"message","id":"54ea1c6e","parentId":"008cc65b","timestamp":"2026-03-30T07:19:47.312Z","message":{"role":"toolResult","toolCallId":"toolu_01MsryMkSbbhDdXjrcpsBaws","toolName":"async_bash","content":[{"type":"text","text":"Background job started: **bg_ae553258**\nCommand: `verify-migration`\n\nUse `await_job` to get results when ready, or `cancel_job` to stop."}],"isError":false,"timestamp":1774855187309}}
{"type":"message","id":"1e1fd9f1","parentId":"54ea1c6e","timestamp":"2026-03-30T07:19:47.312Z","message":{"role":"toolResult","toolCallId":"toolu_015VB8ffQ8BZfnHBb85TaPgp","toolName":"async_bash","content":[{"type":"text","text":"Background job started: **bg_1c5702ee**\nCommand: `verify-metadata-helper`\n\nUse `await_job` to get results when ready, or `cancel_job` to stop."}],"isError":false,"timestamp":1774855187312}}
{"type":"message","id":"58ed4a70","parentId":"1e1fd9f1","timestamp":"2026-03-30T07:19:47.312Z","message":{"role":"toolResult","toolCallId":"toolu_019wzGofgPMSMsWM3FsRDgoe","toolName":"async_bash","content":[{"type":"text","text":"Background job started: **bg_dbec7cca**\nCommand: `verify-snapshot-hook`\n\nUse `await_job` to get results when ready, or `cancel_job` to stop."}],"isError":false,"timestamp":1774855187312}}
{"type":"message","id":"6488445d","parentId":"58ed4a70","timestamp":"2026-03-30T07:19:47.313Z","message":{"role":"toolResult","toolCallId":"toolu_01Am1eSXkkmy3yS6xNFzi6MY","toolName":"async_bash","content":[{"type":"text","text":"Background job started: **bg_df9c969e**\nCommand: `verify-frontend-build`\n\nUse `await_job` to get results when ready, or `cancel_job` to stop."}],"isError":false,"timestamp":1774855187312}}
{"type":"message","id":"04df4b36","parentId":"6488445d","timestamp":"2026-03-30T07:19:47.313Z","message":{"role":"toolResult","toolCallId":"toolu_01NKLUphuCjEPteY7euUvpFS","toolName":"async_bash","content":[{"type":"text","text":"Background job started: **bg_f07369bb**\nCommand: `verify-frontend-types`\n\nUse `await_job` to get results when ready, or `cancel_job` to stop."}],"isError":false,"timestamp":1774855187313}}
{"type":"message","id":"b75d21ec","parentId":"04df4b36","timestamp":"2026-03-30T07:19:47.316Z","message":{"role":"toolResult","toolCallId":"toolu_015EzBuaocAiV758UvNnSCbj","toolName":"async_bash","content":[{"type":"text","text":"Background job started: **bg_ef854ea3**\nCommand: `verify-schemas`\n\nUse `await_job` to get results when ready, or `cancel_job` to stop."}],"isError":false,"timestamp":1774855187313}}
{"type":"message","id":"2688fa4d","parentId":"b75d21ec","timestamp":"2026-03-30T07:19:53.087Z","message":{"role":"assistant","content":[{"type":"toolCall","id":"toolu_01F6C4wGf6RyG9FxG1NbEVa6","name":"await_job","arguments":{"jobs":["bg_5e7c5219","bg_ae553258","bg_1c5702ee","bg_dbec7cca","bg_df9c969e","bg_f07369bb","bg_ef854ea3"],"timeout":120}}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":1,"output":129,"cacheRead":69598,"cacheWrite":1269,"totalTokens":70997,"cost":{"input":0.000005,"output":0.003225,"cacheRead":0.034799,"cacheWrite":0.00793125,"total":0.045960249999999994}},"stopReason":"toolUse","timestamp":1774855187314}}
{"type":"message","id":"46e0a47f","parentId":"2688fa4d","timestamp":"2026-03-30T07:19:53.090Z","message":{"role":"toolResult","toolCallId":"toolu_01F6C4wGf6RyG9FxG1NbEVa6","toolName":"await_job","content":[{"type":"text","text":"### bg_5e7c5219 — verify-model (completed, 5.8s)\n\nModel OK\n\n\n---\n\n### bg_ae553258 — verify-migration (completed, 5.8s)\n\nMigration file exists\n\n\n---\n\n### bg_1c5702ee — verify-metadata-helper (completed, 5.8s)\n\nPipeline metadata helper found\n\n\n---\n\n### bg_dbec7cca — verify-snapshot-hook (completed, 5.8s)\n\nSnapshot hook wired\n\n\n---\n\n### bg_df9c969e — verify-frontend-build (completed, 5.8s)\n\ncomputing gzip size...\ndist/index.html                   0.45 kB │ gzip:  0.28 kB\ndist/assets/index-XJBixYYF.css   29.49 kB │ gzip:  4.86 kB\ndist/assets/index-nyaw0QhX.js   200.27 kB │ gzip: 62.02 kB\n✓ built in 792ms\n\n\n---\n\n### bg_f07369bb — verify-frontend-types (completed, 5.8s)\n\nFrontend types and display wired\n\n\n---\n\n### bg_ef854ea3 — verify-schemas (completed, 5.8s)\n\nSchemas OK\n"}],"isError":false,"timestamp":1774855193088}}
{"type":"message","id":"2165a08e","parentId":"46e0a47f","timestamp":"2026-03-30T07:19:57.301Z","message":{"role":"assistant","content":[{"type":"text","text":"All 7 verification checks pass. Let me check the existing DECISIONS.md and PROJECT.md before writing the slice completion artifacts."},{"type":"toolCall","id":"toolu_015eBUbVNa8X8GiNabE8w6wk","name":"read","arguments":{"path":".gsd/DECISIONS.md"}},{"type":"toolCall","id":"toolu_01PkEeAHKpv8WTDhQYqrYJbV","name":"read","arguments":{"path":".gsd/PROJECT.md"}}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":1,"output":127,"cacheRead":70867,"cacheWrite":454,"totalTokens":71449,"cost":{"input":0.000005,"output":0.0031750000000000003,"cacheRead":0.0354335,"cacheWrite":0.0028375,"total":0.041451}},"stopReason":"toolUse","timestamp":1774855193089}}
{"type":"message","id":"a4ce8dc6","parentId":"2165a08e","timestamp":"2026-03-30T07:19:57.306Z","message":{"role":"toolResult","toolCallId":"toolu_015eBUbVNa8X8GiNabE8w6wk","toolName":"read","content":[{"type":"text","text":"# Decisions Register\n\n<!-- Append-only. Never edit or remove existing rows.\n     To reverse a decision, add a new row that supersedes it.\n     Read this file at the start of any planning or research phase. -->\n\n| # | When | Scope | Decision | Choice | Rationale | Revisable? | Made By |\n|---|------|-------|----------|--------|-----------|------------|---------|\n| D001 |  | architecture | Storage layer selection | PostgreSQL for structured data, Qdrant (existing instance at 10.0.0.10) for vector embeddings, local filesystem for transcript JSON files | Spec specifies PostgreSQL for JSONB support and Qdrant already running on hypervisor. File store on local filesystem organized by creator slug. Qdrant gets a dedicated collection, not a new instance. | Yes | collaborative |\n| D002 |  | architecture | Timestamp handling for asyncpg with TIMESTAMP WITHOUT TIME ZONE columns | Use datetime.now(timezone.utc).replace(tzinfo=None) in _now() helper | asyncpg rejects timezone-aware datetimes for TIMESTAMP WITHOUT TIME ZONE columns. Stripping tzinfo at the application layer preserves UTC semantics while staying compatible with the existing schema. | Yes | agent |\n| D003 |  | requirement | R002 Transcript Ingestion API status | validated | 6 passing integration tests prove the full POST /api/v1/ingest flow: creator auto-detection, SourceVideo upsert, TranscriptSegment bulk insert, raw JSON persistence, idempotent re-upload, and invalid input rejection. | Yes | agent |\n| D004 |  | architecture | Sync vs async approach for Celery worker pipeline tasks | Use sync openai.OpenAI, sync QdrantClient, and sync SQLAlchemy (create_engine with psycopg2) inside Celery tasks. Convert DATABASE_URL from postgresql+asyncpg:// to postgresql:// for the sync engine. | Celery workers run in a synchronous context. Using asyncio.run() inside tasks risks nested event loop errors with gevent/eventlet workers. Using sync clients throughout eliminates this class of bug entirely. The async engine/session from database.py is only used by FastAPI (ASGI); the worker gets its own sync engine. | Yes | agent |\n| D005 |  | architecture | Embedding/Qdrant failure handling strategy in pipeline | Embedding/Qdrant failures (stage 6) log errors but do not fail the pipeline. Processing_status is set by stages 2-5 only. Embeddings can be regenerated by manual re-trigger. | Qdrant is at 10.0.0.10 on the hypervisor network and may not be reachable during all pipeline runs. Making embedding a non-blocking side-effect ensures core pipeline output (KeyMoments, TechniquePages in PostgreSQL) is never lost due to vector store issues. The manual re-trigger endpoint allows regenerating embeddings at any time. | Yes | agent |\n| D006 |  | requirement | R013 Prompt Template System status | validated | 4 prompt template files in prompts/ directory loaded from configurable settings.prompts_path. Templates use XML-style content fencing. Pipeline stages read templates from disk at runtime, enabling edits without code changes. Manual re-trigger endpoint (POST /api/v1/pipeline/trigger/{video_id}) allows re-processing after prompt edits. | Yes | agent |\n| D007 | M001/S04 | architecture | Runtime review mode toggle persistence mechanism | Store review mode toggle in Redis key `chrysopedia:review_mode` with async redis client. Fall back to `settings.review_mode` config default when key is absent. | The config.py `review_mode` setting is loaded via lru_cache from environment variables and cannot be mutated at runtime. Redis is already used by the project (Celery broker, stage 4 classification data) so it adds no new infrastructure. A system_settings DB table would work but Redis is simpler for a single boolean toggle on a single-admin tool. The pipeline's stages.py reads settings.review_mode from config — the admin toggle only affects new pipeline runs if stages.py is updated to check Redis too, but that's deferred since the toggle is primarily a UI-level concept for the review queue. | Yes | agent |\n| D008 | M001/S04 | requirement | R004 Review Queue UI status | validated | All R004 capabilities delivered and verified: 9 API endpoints (approve, reject, edit, split, merge, queue list, stats, mode get/set) with 24 passing integration tests covering happy paths and error boundaries. React+TypeScript frontend with queue page (filter tabs, stats, pagination), moment detail page (all review actions with modals), and review-vs-auto mode toggle. Frontend builds with zero TypeScript errors. | Yes | agent |\n| D009 | M001/S05 | architecture | Async search service pattern for FastAPI request path | Create a separate `SearchService` class using `openai.AsyncOpenAI` and `qdrant_client.AsyncQdrantClient` for the search endpoint. Keep existing sync `EmbeddingClient` and `QdrantManager` for Celery pipeline. Search endpoint has 300ms timeout on embedding API and falls back to SQL ILIKE keyword search on Qdrant/embedding failure. | The existing EmbeddingClient and QdrantManager are sync (using `openai.OpenAI` and `QdrantClient`) because Celery tasks run synchronously. FastAPI request handlers are async — reusing sync clients would block the event loop. Creating a thin async wrapper avoids modifying the battle-tested pipeline code while providing non-blocking search. The 300ms timeout and keyword fallback ensure the search endpoint always returns results, even when Qdrant or the embedding service is degraded. | Yes | agent |\n| D010 | M001/S05 | requirement | R005 Search-First Web UI status | validated | Search endpoint (GET /api/v1/search) with async embedding + Qdrant + keyword fallback implemented and tested. Frontend Home.tsx has prominent search bar with 300ms debounced typeahead, scope toggle via URL params, nav cards for Topics/Creators, Recently Added section. SearchResults.tsx displays grouped results. 5 integration tests verify search happy path, empty query, keyword fallback, scope filter, and no-results. Frontend production build succeeds with zero TypeScript errors. | Yes | agent |\n| D011 | M001/S05 | requirement | R006 Technique Page Display status | validated | TechniquePage.tsx renders all specified sections: header with topic_category badge and topic_tags pills, creator name linked to creator detail, source_quality indicator, amber banner for unstructured content, body_sections JSONB prose (handles both string and object values), key moments index ordered by start_time, signal chains, plugins pill list, and related techniques links. Backend GET /api/v1/techniques/{slug} returns full detail with eager-loaded key_moments and related links. 404 for unknown slug tested. | Yes | agent |\n| D012 | M001/S05 | requirement | R007 Creators Browse Page status | validated | CreatorsBrowse.tsx implements genre filter pills, type-to-narrow name filter, sort toggle (Random default/A-Z/Views). Each creator row shows name, genre tags, technique_count, video_count. Links to CreatorDetail page. Backend GET /api/v1/creators supports sort=random\\|alpha\\|views and genre filter. Integration tests verify random sort, alpha sort, genre filter, detail endpoint, 404, and counts. | Yes | agent |\n| D013 | M001/S05 | requirement | R008 Topics Browse Page status | validated | TopicsBrowse.tsx renders two-level topic hierarchy (6 categories from canonical_tags.yaml with expandable sub-topics showing technique_count and creator_count). Filter input narrows categories/sub-topics. Clicking sub-topic navigates to search with scope=topics. Backend GET /api/v1/topics aggregates counts from DB per sub-topic. Integration test verifies topic hierarchy response shape. | Yes | agent |\n| D014 | M001/S05 | requirement | R014 Creator Equity status | validated | CreatorsBrowse.tsx defaults to sort=random. Backend uses func.random() ORDER BY for randomized sort. Integration test verifies random sort returns all creators (order may vary). All creators get equal visual weight in the UI — no featured/highlighted treatment. Equal-weight row layout confirmed in CSS. | Yes | agent |\n| D015 | M002/S01 | architecture | Docker network subnet for Chrysopedia on ub01 | 172.32.0.0/24 — free on ub01, replaces 172.24.0.0/24 which is used by xpltd_docs_default | 172.24.0.0/24 was already allocated to xpltd_docs_default network on ub01. Scanned all existing subnets and 172.32.0.0/24 was the first unoccupied /24 in the 172.x range. | Yes | agent |\n| D016 | M002/S01 | architecture | Embedding service for the pipeline and search — OpenWebUI doesn't serve /v1/embeddings | Add Ollama container (ollama/ollama:latest) to the compose stack running nomic-embed-text on CPU | The FYN OpenWebUI instance at chat.forgetyour.name returns 404/500 on /v1/embeddings. No Ollama instance exists on the network. Ollama provides the standard OpenAI-compatible /v1/embeddings endpoint that both EmbeddingClient and SearchService expect. | Yes | agent |\n| D017 |  | frontend | CSS theming approach for dark mode | 77 semantic CSS custom properties in :root block, all hardcoded colors replaced with var(--*) references | A complete variable-based palette enables theme switching, ensures consistency, and makes future color changes single-point edits. 77 tokens (vs ~30 initially planned) were needed to cover all semantic contexts — badges, buttons, surfaces, text, accents, shadows, and status states. Cyan (#22d3ee) replaces indigo as the accent color throughout. | Yes | agent |\n"}],"isError":false,"timestamp":1774855197304}}
{"type":"message","id":"a423e2c8","parentId":"a4ce8dc6","timestamp":"2026-03-30T07:19:57.310Z","message":{"role":"toolResult","toolCallId":"toolu_01PkEeAHKpv8WTDhQYqrYJbV","toolName":"read","content":[{"type":"text","text":"ENOENT: no such file or directory, access '/home/aux/projects/content-to-kb-automator/.gsd/PROJECT.md'"}],"details":{},"isError":true,"timestamp":1774855197304}}
{"type":"message","id":"805ba067","parentId":"a423e2c8","timestamp":"2026-03-30T07:20:08.745Z","message":{"role":"assistant","content":[{"type":"text","text":"No PROJECT.md exists. Let me check the key decisions from task summaries against what's already in DECISIONS.md. The task decisions are:\n\n- T01: \"Version snapshot is best-effort — INSERT failure logs ERROR but does not block page update\" — architectural decision, not in DECISIONS.md\n- T01: \"Composite unique index on (technique_page_id, version_number) enforces ordering at DB level\" — schema detail, not decision-worthy\n- T01: \"source_quality enum stored as string value in snapshot for JSON serialization\" — implementation detail\n- T02: \"Version list returns all versions without pagination\" — minor, not worth a decision entry\n- T03: \"Version count only displayed when > 0\" — UI detail\n\nThe best-effort versioning pattern is worth recording. Let me save that decision and then complete the slice."},{"type":"toolCall","id":"toolu_01NJR4WnU8ZVBZshGp6K8feR","name":"gsd_save_decision","arguments":{"choice":"Best-effort versioning — snapshot INSERT failure logs ERROR but does not block page update (existing content overwrites proceed regardless)","decision":"Version snapshot failure handling strategy in stage 5","made_by":"agent","rationale":"Versioning is a diagnostic/benchmarking feature. Losing a version snapshot is far less damaging than failing the entire page synthesis. Follows the same non-blocking side-effect pattern established in D005 for embedding/Qdrant failures.","scope":"architecture","when_context":"M004/S04"}}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":1,"output":423,"cacheRead":71321,"cacheWrite":2620,"totalTokens":74365,"cost":{"input":0.000005,"output":0.010575000000000001,"cacheRead":0.0356605,"cacheWrite":0.016375,"total":0.06261549999999999}},"stopReason":"toolUse","timestamp":1774855197306}}
{"type":"message","id":"94feb3b8","parentId":"805ba067","timestamp":"2026-03-30T07:20:08.750Z","message":{"role":"toolResult","toolCallId":"toolu_01NJR4WnU8ZVBZshGp6K8feR","toolName":"gsd_save_decision","content":[{"type":"text","text":"Saved decision D018"}],"details":{"operation":"save_decision","id":"D018"},"isError":false,"timestamp":1774855208748}}
{"type":"message","id":"0bee6afc","parentId":"94feb3b8","timestamp":"2026-03-30T07:21:14.190Z","message":{"role":"assistant","content":[{"type":"text","text":"Now I'll complete the slice with the full summary and UAT content."},{"type":"toolCall","id":"toolu_01Dy51i4ftgbCkaQV8ZtZB7t","name":"gsd_slice_complete","arguments":{"affects":[],"deviations":"None.","drillDownPaths":[".gsd/milestones/M004/slices/S04/tasks/T01-SUMMARY.md",".gsd/milestones/M004/slices/S04/tasks/T02-SUMMARY.md",".gsd/milestones/M004/slices/S04/tasks/T03-SUMMARY.md"],"filesModified":[{"description":"Added TechniquePageVersion model with UUID PK, FK, version_number, content_snapshot (JSONB), pipeline_metadata (JSONB), created_at. Added versions relationship on TechniquePage.","path":"backend/models.py"},{"description":"New migration creating technique_page_versions table with composite unique index on (technique_page_id, version_number)","path":"alembic/versions/002_technique_page_versions.py"},{"description":"Added _capture_pipeline_metadata() helper and pre-overwrite snapshot logic in stage5_synthesis","path":"backend/pipeline/stages.py"},{"description":"Added TechniquePageVersionSummary, TechniquePageVersionDetail, TechniquePageVersionListResponse schemas; added version_count to TechniquePageDetail","path":"backend/schemas.py"},{"description":"Added GET /{slug}/versions and GET /{slug}/versions/{version_number} endpoints; modified get_technique to include version_count","path":"backend/routers/techniques.py"},{"description":"Added 6 integration tests for version endpoints","path":"backend/tests/test_public_api.py"},{"description":"Added version_count to TechniquePageDetail, TechniquePageVersionSummary/ListResponse interfaces, fetchTechniqueVersions function","path":"frontend/src/api/public-client.ts"},{"description":"Conditional version count display in meta stats line","path":"frontend/src/pages/TechniquePage.tsx"}],"followUps":"None.","keyDecisions":["D018: Best-effort versioning — snapshot INSERT failure logs ERROR but does not block page update","Composite unique index on (technique_page_id, version_number) enforces version ordering at DB level","Version count only displayed in frontend when > 0 to avoid clutter on pages with no history","source_quality enum stored as string .value in JSONB snapshot for serialization compatibility"],"keyFiles":["backend/models.py","alembic/versions/002_technique_page_versions.py","backend/pipeline/stages.py","backend/schemas.py","backend/routers/techniques.py","backend/tests/test_public_api.py","frontend/src/api/public-client.ts","frontend/src/pages/TechniquePage.tsx"],"knownLimitations":"1. Version list endpoint returns all versions without pagination — acceptable since version count per page is expected to be small (single-digit to low tens).\n2. Backend integration tests require PostgreSQL on ub01:5433 and cannot run locally on this machine.\n3. Pre-existing creator test failures (5 tests) and test_search.py deadlock issues exist but are unrelated to versioning.\n4. Pipeline metadata capture hashes prompt files at snapshot time — if prompt files are deleted or moved, the hash will be empty (logged as WARNING).","milestoneId":"M004","narrative":"This slice added a full article versioning stack across all three layers — database model, API, and frontend.\n\n**T01 (Model + Migration + Pipeline Hook):** Added `TechniquePageVersion` model with UUID PK, FK to technique_pages (CASCADE delete), version_number, content_snapshot (JSONB), pipeline_metadata (JSONB), and created_at. Created Alembic migration 002 with a composite unique index on (technique_page_id, version_number). Added `_capture_pipeline_metadata()` helper that hashes all prompt template files (SHA-256) and collects model/modality config from settings. Modified `stage5_synthesis` to snapshot all 9 content fields (title, slug, topic_category, topic_tags, summary, body_sections, signal_chains, plugins, source_quality) before any attribute mutations, with best-effort error handling — INSERT failures log ERROR but don't block the page update.\n\n**T02 (API + Tests):** Added three Pydantic schemas (TechniquePageVersionSummary, TechniquePageVersionDetail, TechniquePageVersionListResponse) and a version_count field on TechniquePageDetail. Added GET /{slug}/versions (list, DESC order) and GET /{slug}/versions/{version_number} (detail with full content_snapshot) endpoints. Modified get_technique to include version_count. Wrote 6 integration tests covering empty list, populated list ordering, detail with snapshot content, 404 for missing version, 404 for missing slug, and version_count on technique detail. All pass alongside 8 pre-existing tests.\n\n**T03 (Frontend):** Added TypeScript interfaces mirroring the backend schemas, a fetchTechniqueVersions API function, and conditional version count display in TechniquePage meta stats (only when > 0). Frontend builds with zero TypeScript errors.","observabilitySurfaces":["INFO log in stage 5 when version snapshot is created (includes version_number and page slug)","ERROR log if snapshot INSERT fails (with exception details)","SELECT * FROM technique_page_versions ORDER BY created_at DESC LIMIT 5 — inspect recent versions","GET /techniques/{slug}/versions — API surface for version history"],"oneLiner":"Added technique page version tracking with pipeline metadata capture, snapshot-on-write in stage 5, version list/detail API endpoints, and frontend version count display.","patternsEstablished":["Pre-overwrite snapshot pattern: before mutating an existing DB row, capture its current state into a version table with pipeline metadata for audit/benchmarking","_capture_pipeline_metadata() helper collects prompt file hashes + model config — reusable for any pipeline stage that needs reproducibility metadata"],"provides":["TechniquePageVersion model and migration","Version list/detail API endpoints","Pipeline metadata capture helper (_capture_pipeline_metadata)","Frontend version count display and fetchTechniqueVersions API function"],"requirementsAdvanced":[{"how":"Pipeline metadata now captures prompt file SHA-256 hashes at synthesis time, creating a traceable link between prompt versions and output quality — directly supports the 're-run extraction' workflow in R013","id":"R013"}],"requirementsInvalidated":[],"requirementsSurfaced":[],"requirementsValidated":[],"requires":[],"sliceId":"S04","sliceTitle":"Article Versioning + Pipeline Tuning Metadata","uatContent":"## UAT: S04 — Article Versioning + Pipeline Tuning Metadata\n\n### Preconditions\n- PostgreSQL running on ub01:5433 with chrysopedia database\n- Alembic migration 002 applied (`docker exec chrysopedia-api alembic upgrade head`)\n- At least one technique page exists in the database (from prior pipeline runs)\n- API running at ub01:8096\n- Frontend built and served\n\n---\n\n### Test 1: TechniquePageVersion model loads correctly\n**Steps:**\n1. `docker exec chrysopedia-api python -c \"from models import TechniquePageVersion; print('OK')\"`\n\n**Expected:** Prints \"OK\", exit 0.\n\n---\n\n### Test 2: Migration 002 creates technique_page_versions table\n**Steps:**\n1. `docker exec chrysopedia-api alembic upgrade head`\n2. `docker exec chrysopedia-db psql -U chrysopedia -d chrysopedia -c \"\\d technique_page_versions\"`\n\n**Expected:** Table exists with columns: id (uuid), technique_page_id (uuid), version_number (integer), content_snapshot (jsonb), pipeline_metadata (jsonb), created_at (timestamp). Composite unique index on (technique_page_id, version_number).\n\n---\n\n### Test 3: Version list endpoint returns empty for page with no versions\n**Steps:**\n1. Pick an existing technique slug: `curl -s http://ub01:8096/api/v1/techniques | jq '.items[0].slug'`\n2. `curl -s http://ub01:8096/api/v1/techniques/{slug}/versions`\n\n**Expected:** `{\"items\": [], \"total\": 0}`\n\n---\n\n### Test 4: Technique detail includes version_count field\n**Steps:**\n1. `curl -s http://ub01:8096/api/v1/techniques/{slug} | jq '.version_count'`\n\n**Expected:** Returns `0` (integer, not null/missing).\n\n---\n\n### Test 5: Re-running pipeline creates a version snapshot\n**Steps:**\n1. Note an existing technique page slug and its current body content\n2. Trigger re-processing: `curl -X POST http://ub01:8096/api/v1/pipeline/trigger/{video_id}`\n3. Wait for pipeline completion (check worker logs)\n4. `curl -s http://ub01:8096/api/v1/techniques/{slug}/versions`\n\n**Expected:** `total: 1`, items contains one version with `version_number: 1`, `pipeline_metadata` includes `prompt_hashes` and `models` keys, `created_at` is recent.\n\n---\n\n### Test 6: Version detail returns full content snapshot\n**Steps:**\n1. After Test 5, `curl -s http://ub01:8096/api/v1/techniques/{slug}/versions/1`\n\n**Expected:** Response includes `version_number: 1`, `content_snapshot` object with keys: title, slug, topic_category, topic_tags, summary, body_sections, signal_chains, plugins, source_quality. `pipeline_metadata` includes prompt file hashes.\n\n---\n\n### Test 7: Version 404 for nonexistent version number\n**Steps:**\n1. `curl -s -o /dev/null -w '%{http_code}' http://ub01:8096/api/v1/techniques/{slug}/versions/999`\n\n**Expected:** HTTP 404.\n\n---\n\n### Test 8: Versions 404 for nonexistent slug\n**Steps:**\n1. `curl -s -o /dev/null -w '%{http_code}' http://ub01:8096/api/v1/techniques/nonexistent-slug-xyz/versions`\n\n**Expected:** HTTP 404.\n\n---\n\n### Test 9: Frontend shows version count when > 0\n**Steps:**\n1. After Test 5 creates a version, navigate to the technique page in browser: `http://ub01:8096/technique/{slug}`\n2. Look at the meta stats line below the title\n\n**Expected:** Shows \"1 version\" (or \"N versions\") in the meta stats line alongside moment count.\n\n---\n\n### Test 10: Frontend hides version count when 0\n**Steps:**\n1. Navigate to a technique page with no version history: `http://ub01:8096/technique/{slug-with-no-versions}`\n\n**Expected:** No version count text appears in the meta stats line.\n\n---\n\n### Test 11: Pipeline metadata captures prompt hashes\n**Steps:**\n1. After Test 5, `curl -s http://ub01:8096/api/v1/techniques/{slug}/versions/1 | jq '.pipeline_metadata.prompt_hashes'`\n\n**Expected:** Object with keys matching prompt file names (e.g., stage2_segmentation, stage3_extraction, etc.), each value is a 64-char hex SHA-256 hash string.\n\n---\n\n### Test 12: Multiple re-runs increment version number\n**Steps:**\n1. Trigger pipeline again for the same video\n2. Wait for completion\n3. `curl -s http://ub01:8096/api/v1/techniques/{slug}/versions`\n\n**Expected:** `total: 2`, versions list shows version_number 2 and 1 (DESC order), each with distinct created_at timestamps.\n\n---\n\n### Edge Cases\n\n**E1: Concurrent pipeline runs for same video** — Not expected in normal operation (single admin). If it happens, the composite unique index on (technique_page_id, version_number) prevents duplicate version numbers.\n\n**E2: Missing prompt files** — If a prompt file referenced in settings doesn't exist, pipeline_metadata.prompt_hashes should contain an empty string for that file (with WARNING in worker logs).","verification":"All slice-level verification checks pass:\n1. `cd backend && python -c \"from models import TechniquePageVersion; print('Model OK')\"` → exit 0\n2. `test -f alembic/versions/002_technique_page_versions.py` → exit 0\n3. `grep -q '_capture_pipeline_metadata' backend/pipeline/stages.py` → exit 0\n4. `grep -q 'TechniquePageVersion' backend/pipeline/stages.py` → exit 0\n5. `cd backend && python -c \"from schemas import TechniquePageVersionSummary, TechniquePageVersionDetail, TechniquePageVersionListResponse\"` → exit 0\n6. `cd frontend && npm run build` → exit 0, zero errors\n7. `grep -q 'version_count' frontend/src/api/public-client.ts && grep -q 'version_count' frontend/src/pages/TechniquePage.tsx && grep -q 'fetchTechniqueVersions' frontend/src/api/public-client.ts` → exit 0"}}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":1,"output":3584,"cacheRead":73941,"cacheWrite":440,"totalTokens":77966,"cost":{"input":0.000005,"output":0.0896,"cacheRead":0.036970499999999996,"cacheWrite":0.0027500000000000003,"total":0.1293255}},"stopReason":"toolUse","timestamp":1774855208749}}
{"type":"message","id":"074a0e0d","parentId":"0bee6afc","timestamp":"2026-03-30T07:21:14.213Z","message":{"role":"toolResult","toolCallId":"toolu_01Dy51i4ftgbCkaQV8ZtZB7t","toolName":"gsd_slice_complete","content":[{"type":"text","text":"Completed slice S04 (M004)"}],"details":{"operation":"complete_slice","sliceId":"S04","milestoneId":"M004","summaryPath":"/home/aux/projects/content-to-kb-automator/.gsd/milestones/M004/slices/S04/S04-SUMMARY.md","uatPath":"/home/aux/projects/content-to-kb-automator/.gsd/milestones/M004/slices/S04/S04-UAT.md"},"isError":false,"timestamp":1774855274211}}
{"type":"message","id":"32fc9e38","parentId":"074a0e0d","timestamp":"2026-03-30T07:21:16.669Z","message":{"role":"assistant","content":[{"type":"text","text":"Slice S04 complete."}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":1,"output":10,"cacheRead":74381,"cacheWrite":3625,"totalTokens":78017,"cost":{"input":0.000005,"output":0.00025,"cacheRead":0.0371905,"cacheWrite":0.022656250000000003,"total":0.06010175}},"stopReason":"stop","timestamp":1774855274212}}
{"type":"custom_message","customType":"async_job_result","content":"**Background job done: bg_f07369bb** (verify-frontend-types, 0.0s)\n\nFrontend types and display wired\n","display":true,"id":"55492375","parentId":"32fc9e38","timestamp":"2026-03-30T07:21:16.672Z"}
{"type":"message","id":"ce115ea0","parentId":"55492375","timestamp":"2026-03-30T07:21:20.525Z","message":{"role":"assistant","content":[{"type":"text","text":"Already accounted for — that result came back in the earlier `await_job` batch. All verification passed and the slice is complete.\n\nSlice S04 complete."}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":2,"output":39,"cacheRead":74381,"cacheWrite":3669,"totalTokens":78091,"cost":{"input":0.00001,"output":0.0009750000000000001,"cacheRead":0.0371905,"cacheWrite":0.02293125,"total":0.06110675}},"stopReason":"stop","timestamp":1774855276670}}
{"type":"custom_message","customType":"async_job_result","content":"**Background job done: bg_dbec7cca** (verify-snapshot-hook, 0.0s)\n\nSnapshot hook wired\n","display":true,"id":"e347d148","parentId":"ce115ea0","timestamp":"2026-03-30T07:21:20.530Z"}
{"type":"message","id":"b8718aca","parentId":"e347d148","timestamp":"2026-03-30T07:21:23.432Z","message":{"role":"assistant","content":[{"type":"text","text":"Already captured — all 7 verification jobs completed in the earlier `await_job` call. Nothing new to act on."}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":2,"output":29,"cacheRead":78006,"cacheWrite":118,"totalTokens":78155,"cost":{"input":0.00001,"output":0.0007250000000000001,"cacheRead":0.039002999999999996,"cacheWrite":0.0007375,"total":0.0404755}},"stopReason":"stop","timestamp":1774855280526}}
{"type":"custom_message","customType":"async_job_result","content":"**Background job done: bg_1c5702ee** (verify-metadata-helper, 0.0s)\n\nPipeline metadata helper found\n","display":true,"id":"85a22ffd","parentId":"b8718aca","timestamp":"2026-03-30T07:21:23.435Z"}
{"type":"message","id":"ae54c964","parentId":"85a22ffd","timestamp":"2026-03-30T07:21:26.103Z","message":{"role":"assistant","content":[{"type":"text","text":"Already handled. All verification jobs finished earlier."}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":2,"output":12,"cacheRead":78124,"cacheWrite":63,"totalTokens":78201,"cost":{"input":0.00001,"output":0.00030000000000000003,"cacheRead":0.039062,"cacheWrite":0.00039375,"total":0.039765749999999996}},"stopReason":"stop","timestamp":1774855283433}}
{"type":"custom_message","customType":"async_job_result","content":"**Background job done: bg_ae553258** (verify-migration, 0.1s)\n\nMigration file exists\n","display":true,"id":"887bddcf","parentId":"ae54c964","timestamp":"2026-03-30T07:21:26.105Z"}
{"type":"message","id":"79bdef02","parentId":"887bddcf","timestamp":"2026-03-30T07:21:28.758Z","message":{"role":"assistant","content":[{"type":"text","text":"Already captured. All done here."}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":2,"output":10,"cacheRead":78187,"cacheWrite":41,"totalTokens":78240,"cost":{"input":0.00001,"output":0.00025,"cacheRead":0.039093499999999996,"cacheWrite":0.00025625,"total":0.03960975}},"stopReason":"stop","timestamp":1774855286103}}
{"type":"custom_message","customType":"async_job_result","content":"**Background job done: bg_ef854ea3** (verify-schemas, 0.2s)\n\nSchemas OK\n","display":true,"id":"3c960710","parentId":"79bdef02","timestamp":"2026-03-30T07:21:28.764Z"}
{"type":"message","id":"982cb9b8","parentId":"3c960710","timestamp":"2026-03-30T07:21:31.304Z","message":{"role":"assistant","content":[{"type":"text","text":"All accounted for. Slice S04 was completed several turns ago."}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":2,"output":19,"cacheRead":78228,"cacheWrite":40,"totalTokens":78289,"cost":{"input":0.00001,"output":0.000475,"cacheRead":0.039113999999999996,"cacheWrite":0.00025,"total":0.039848999999999996}},"stopReason":"stop","timestamp":1774855288759}}
{"type":"custom_message","customType":"async_job_result","content":"**Background job done: bg_5e7c5219** (verify-model, 0.4s)\n\nModel OK\n","display":true,"id":"3744e069","parentId":"982cb9b8","timestamp":"2026-03-30T07:21:31.307Z"}
{"type":"message","id":"5d4862b9","parentId":"3744e069","timestamp":"2026-03-30T07:21:33.841Z","message":{"role":"assistant","content":[{"type":"text","text":"All 7 jobs were already captured. Nothing pending."}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":2,"output":15,"cacheRead":78268,"cacheWrite":50,"totalTokens":78335,"cost":{"input":0.00001,"output":0.000375,"cacheRead":0.039133999999999995,"cacheWrite":0.0003125,"total":0.0398315}},"stopReason":"stop","timestamp":1774855291305}}
{"type":"custom_message","customType":"async_job_result","content":"**Background job done: bg_df9c969e** (verify-frontend-build, 2.4s)\n\ncomputing gzip size...\ndist/index.html                   0.45 kB │ gzip:  0.28 kB\ndist/assets/index-XJBixYYF.css   29.49 kB │ gzip:  4.86 kB\ndist/assets/index-nyaw0QhX.js   200.27 kB │ gzip: 62.02 kB\n✓ built in 792ms\n","display":true,"id":"d1cc905d","parentId":"5d4862b9","timestamp":"2026-03-30T07:21:33.844Z"}
{"type":"message","id":"c6b9bf7e","parentId":"d1cc905d","timestamp":"2026-03-30T07:21:36.324Z","message":{"role":"assistant","content":[{"type":"text","text":"Already captured. All verification passed and slice S04 is complete."}],"api":"anthropic-messages","provider":"anthropic","model":"claude-opus-4-6","usage":{"input":2,"output":17,"cacheRead":78318,"cacheWrite":154,"totalTokens":78491,"cost":{"input":0.00001,"output":0.00042500000000000003,"cacheRead":0.039159,"cacheWrite":0.0009625,"total":0.040556499999999995}},"stopReason":"stop","timestamp":1774855293842}}
