5ac53cb3e2
Adds the third AI detective in the Investigation Bureau runtime: C. Auguste
Dupin, who scans a corpus shortlist for pairs (or small groups) of chunks
that cannot both be true under any ordinary reading.
Runtime:
- prompts/dupin.md — discipline (no contradiction without ≥2 distinct
chunk_ids; reject same-vocabulary near-misses; FEW high-confidence
over MANY weak ones; emit `NO_CONTRADICTIONS` when corpus is silent)
- src/detectives/dupin.ts — hybridSearch with k=18 (more chunks than
Holmes because contradictions emerge from comparing dispersed
claims), strict JSON-array parsing, AT MOST 3 contradictions per call
- src/tools/write_contradiction.ts — validates topic + ≥2 positions
drawn from ≥2 distinct chunks, resolves chunk_pk via DB lookup
(rejects positions citing unknown chunks), INSERTs into
public.contradictions + writes case/contradictions/R-NNNN.md
- orchestrator: new `contradiction_scan` kind dispatching to runDupin;
payload { topic, doc_id?, lang?, context_chunks? }
Chat + UI:
- request_investigation gains kind=contradiction_scan + topic arg;
triggered detective auto-resolves to dupin
- chat-bubble inline card renders dupin in orange (#ff8a4d) to
distinguish from holmes (cyan) and locard (green)
- /jobs/[id] page swaps title + subtitle + tone per detective;
"Question" label becomes "Topic" for contradiction_scan
- /api/jobs/[id] hydrates public.contradictions when outputs[] surfaces
contradiction_ids
- job-status-poller renders ContradictionCard: topic + N positions
(verbatim statements quoted, stance label optional, link to source
chunk) + optional notes panel, with resolution_status badge
(open/resolved/irreconcilable)
R-NNNN shares the contradiction_id_seq slot with relation per
CLAUDE.md naming — same conceptual class (a connection between two
pieces of evidence in tension).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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|---|---|---|
| .. | ||
| app | ||
| components | ||
| lib | ||
| .dockerignore | ||
| .env.local.example | ||
| Dockerfile | ||
| instrumentation.ts | ||
| middleware.ts | ||
| next-env.d.ts | ||
| next.config.ts | ||
| package-lock.json | ||
| package.json | ||
| postcss.config.mjs | ||
| README.md | ||
| sentry.client.config.ts | ||
| sentry.server.config.ts | ||
| tailwind.config.ts | ||
| tsconfig.json | ||
web — Disclosure Bureau Next.js app
Next.js 15 + React 19 + Tailwind + Supabase + assistant-ui.
Quick start (local dev)
# 1. Install deps
npm install
# 2. (Optional) Start local Supabase
# Requires Docker. Skip if pointing at remote Supabase.
npx supabase init # first time only — creates supabase/ folder
npx supabase start # spins up Postgres/GoTrue/Storage on :54321
# 3. Configure env
cp .env.local.example .env.local
# Edit .env.local — paste local Supabase keys (printed by `supabase start`)
# 4. Apply migrations
psql postgresql://postgres:postgres@localhost:54322/postgres \
-f ../infra/supabase/migrations/0001_chat_schema.sql
# 5. Start dev
npm run dev
# http://localhost:3030
Without Supabase
The app degrades gracefully if Supabase env vars are unset:
- Wiki browsing works (read-only from filesystem)
- Auth bar shows "auth: disabled (dev)"
- Chat bubble shows "Auth not configured"
Useful for quick UI work without spinning up Docker.
Production (Coolify on VPS)
See ../infra/coolify/. Stack:
- Coolify orchestrates everything
- Supabase self-hosted:
db.disclosure.top,studio.disclosure.top - Next.js:
disclosure.top - Meilisearch (shared):
search.disclosure.top - Imgproxy (shared):
img.disclosure.top - Caddy: TLS + reverse proxy (built into Coolify)
Architecture
app/
├── page.tsx # home — 116 docs grouped by collection
├── auth/
│ ├── signin/page.tsx # magic-link form
│ ├── callback/route.ts # exchanges code for session
│ └── signout/route.ts
├── d/[docId]/
│ ├── page.tsx # doc detail
│ └── [page]/page.tsx # page reader (OCR + entity highlights + crops + sidebar PNG)
├── api/
│ ├── me/route.ts # GET current profile
│ ├── sessions/route.ts # GET list, POST new
│ ├── sessions/[id]/route.ts # GET detail, PATCH, DELETE
│ ├── sessions/[id]/messages/route.ts # POST send → assistant reply
│ ├── documents/, pages/, entities/, tables/ # read-only data
│ └── static/[...path]/route.ts # sandboxed file serve
components/
├── chat-bubble.tsx # floating Sherlock — auth-aware, session list
├── entity-modal.tsx # opens on entity click
├── reader-content.tsx # OCR + highlights + crops
└── auth-bar.tsx # sign in / out + budget tracker
lib/
├── wiki.ts # markdown reader (gray-matter)
├── entity-index.ts # match loader + text segmentation
└── supabase/{server,client}.ts # SSR helpers
middleware.ts # session refresh on every request
Tech notes
- No RAG: chat agent reads markdown directly. Wiki-link traversal substitutes for vector search.
- RLS-first: Supabase Row Level Security enforces "user sees only own sessions" at the DB layer.
- Magic-link auth: no passwords. GoTrue handles email delivery.
- Anti-abuse: per-user budget cap (default $5) + daily message quota (default 100) enforced via
check_budgetRPC before each Claude call.
Cost
Each chat turn costs ~$0.005-0.05 depending on context size (mostly Haiku $1/M input, $5/M output).