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mcpedia/PHASES.md
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asepharyana 8f2229d447 feat(mcpedia): Phase 3 — async indexing (BullMQ), git-sync webhook, revisions, MCP Resources
- packages/queue: ioredis singleton + BullMQ Queue/Worker (prefix mcpedia:
  on shared imrnes Redis :6379); apps/worker runs startWorker()
- @mcpedia/core: indexContentFile/runFullIndex (single indexing entry point
  shared by script/worker/hook) + revision.service (list/get/restore)
- document_revisions table (migration 0002) — snapshots only on body change
- apps/api: POST /hooks/reindex + /hooks/index webhooks; tRPC revisions,
  getRevision, restoreRevision, jobStatus, queueStatus
- apps/mcp: register MCP Resources mcpedia://docs{/,+slug/chunks/revisions}
  ({+slug} RFC6570 reserved expansion for slugs containing /)
- apps/mcp zod pinned to ^4 to match MCP SDK 1.30 compiled types
  (resolves registerTool TS2589/ShapeOutput skew)
- scripts/enqueue.ts one-shot job enqueue helper; indexer refactored to runFullIndex
- PHASES.md/README/.env.example/docs updated
2026-08-19 20:18:28 +07:00

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# MCPedia — Phase Status
Legend: ✅ built · 🟡 partial · ⬜ deferred
## Phase 1 — MVP (✅ DONE)
| Capability | Status | Notes |
| --------------------- | ------ | ----- |
| Monorepo (bun + Turbo)| ✅ | apps/{web,mcp}, packages/{types,config,db,parser,search,core}, scripts |
| Content as Markdown | ✅ | `content/{docs,writeups,research,notes}/`, Git-tracked |
| Frontmatter parsing | ✅ | `@mcpedia/parser` (gray-matter) |
| Postgres metadata | ✅ | `@mcpedia/db` Drizzle, `documents` table |
| Postgres FTS | ✅ | weighted `tsvector` (title A / body B), GIN index, `ts_rank`+`ts_headline` |
| Core services | ✅ | Document / Content / Search — single business-logic layer |
| Indexer | ✅ | `scripts/indexer.ts` walks content/ → upserts |
| Web UI (Next 16) | ✅ | home (list), doc view (SSG), search (dynamic). react-markdown render |
| MCP server (stdio) | ✅ | 4 tools; in-memory smoke test passing |
| Hybrid/semantic search| ⬜ | Phase 2 |
## Phase 2 — Semantic + API
- [x] `packages/embeddings` — `EmbeddingProvider` interface + OpenRouter provider (via 9router `/v1`, `encoding_format:"float"`); `chunkText` + `embedChunks` batcher. `EMBED_DIM=2048` discovered live.
- [x] Schema `document_chunks` (id, document_id→documents.id cascade, slug, chunk_index, content, `embedding real[]`). Stored as `real[]` because pgvector **is not installed** on the shared imrnes Postgres (installing needs host-level apt — deferred). Cosine computed in-app; instant for a KB-sized corpus.
- [x] `scripts/indexer.ts` — chunks + embeds + upserts (per-doc replace).
- [x] `@mcpedia/search` — `semanticSearch` (cosine) + `hybridSearch` (FTS + cosine, RRF fusion). `keywordSearch` unchanged.
- [x] `apps/api` — Hono + tRPC v11 (`@trpc/server` fetch adapter, `@hono/node-server` on :4020): `search`, `semanticSearch`, `hybridSearch`, `getDocument`, `listDocuments`, `related`.
- [x] MCP server — added `semantic_search` + `hybrid_search` tools (6 total).
- [x] Web search — keyword/hybrid toggle (`?mode=hybrid`), hybrid reaches semantically-related docs keyword misses.
## Phase 3 — Async + Scale ✅ DONE
- [x] **Redis + BullMQ background indexing / embedding workers** —
`packages/queue` (ioredis singleton + BullMQ `Queue`/`Worker`, prefix
`mcpedia:` on shared imrnes Redis `:6379`); `apps/worker` runs
`startWorker()`. Three job types: `index-doc`, `index-all`, `reindex`.
Single indexing entry point `indexContentFile`/`runFullIndex` in
`@mcpedia/core` shared by the script, worker, and git hook. Verified
end-to-end against live Redis (job enqueue → worker → Postgres write).
- [x] **Git synchronization hook (auto-reindex on push)** — API webhook
`POST /hooks/reindex` (full) and `POST /hooks/index?slug=` (single) enqueue
BullMQ jobs. Wire a Git provider (GitHub/Gitea) post-receive / webhook to
`POST /hooks/reindex` to auto-reindex on push. `scripts/enqueue.ts` is a
one-shot enqueue helper (`bun run enqueue --all` / `<slug>`).
- [x] **Document revision system (`document_revisions`)** — `packages/db`
migration `0002_document_revisions.sql`. Indexer snapshots a revision only
when the body actually changes vs the latest revision (pure metadata edits
don't bloat history). `listRevisions` / `getRevision` / `restoreRevision`
in `@mcpedia/core`; exposed as tRPC `revisions` / `getRevision` /
`restoreRevision` and the `mcpedia://docs/{+slug}/revisions` MCP Resource.
- [x] **MCP Resources (`mcpedia://docs/...`)** — alongside the 6 tools:
`mcpedia://docs` (list), `mcpedia://docs/{+slug}` (body from disk),
`mcpedia://docs/{+slug}/chunks` (chunk preview),
`mcpedia://docs/{+slug}/revisions` (history). `{+slug}` uses RFC 6570
reserved expansion so slugs containing `/` match.
### New/changed commands
```
bun run index # full reindex (runFullIndex, writes revisions)
bun run enqueue --all # enqueue a full reindex job (no worker needed)
bun run enqueue <slug> # enqueue a single-doc reindex job
bun run worker # start the BullMQ indexing worker (long-running)
bun run api # Hono+tRPC API on :4020 (added /hooks/* webhooks)
```
### Verification done (real, against imrnes Redis + Postgres)
- `turbo run typecheck` green across all 13 packages.
- BullMQ e2e: enqueue `index-doc` → worker completes → `documents` +
`document_chunks` + `document_revisions` rows present.
- Revision dedup proven: editing a body creates a new revision; metadata-only
reindex does not; `restoreRevision` writes history back into the live row.
- MCP smoke test passes (tools + all 4 resources).
- API webhook `POST /hooks/reindex` enqueues → worker drains queue →
`queueStatus` reflects counts.
## Phase 4 — Scale-out (only if needed)
- [ ] Dedicated search engine (OpenSearch/Elasticsearch) — YAGNI until FTS is insufficient
- [ ] Object storage for assets
- [ ] Advanced ranking, distributed workers, observability, multi-tenant
## Decisions locked (from initial planning)
- **Tooling:** bun workspaces + Turborepo (repo already used bun; pnpm rejected to minimize churn).
- **DB:** imrnes Postgres `100.121.180.82:6432/mcpedia` for both dev and deploy; driver `prepare:false` (PgBouncer). Docker Compose reserved for future prod.
- **Phase 1 scope:** Core + Web + MCP only. tRPC/Hono API, pgvector, auth, BullMQ deferred (YAGNI).