Spaces:
Sleeping
Sleeping
Commit History
-
Add hybrid retrieval (TF-IDF + embeddings), OCR, A/B eval, and answer trust/UX
Aissugur Kurganbekov +1: Claude Opus 4.8Smarter retrieval: - Hybrid dense+lexical retrieval: fuse TF-IDF with fastembed vectors via Reciprocal Rank Fusion (retrieval.hybrid_rank), wired into answering. The abstention gate still runs on TF-IDF so grounding stays conservative. Graceful fallback to pure TF-IDF when fastembed/the model is unavailable. - Store chunk vectors on Chunk.embedding (new column); idempotent ensure_schema() migration adds it to existing SQLite DBs on startup. - OCR fallback for scanned/image PDFs (PyMuPDF + pytesseract), graceful when the Tesseract binary is absent; tesseract-ocr added to the Docker image. - A/B eval harness (app.ab_eval / eval_cli --ab) comparing TF-IDF vs hybrid. Answer trust / UX: - answer_question now returns answer metadata (confidence, question_type, top_score, term coverage, chunk counts, latency); AskResponse.metadata and Citation.match_text added. - Frontend: confidence meter, exact source-span highlighting, and a printable one-page evidence report. Verified: 4…f65a6b3
-
Audit-driven hardening + Google sign-in
Aissugur Kurganbekov +1: Claude Opus 4.8Security (from a multi-agent audit): - CRITICAL: never sign JWTs with a shared constant. AUTH_SECRET_KEY is required in production and a random EPHEMERAL key in dev, so a default deploy can't run on a public, forgeable secret. - Fix cross-user history leak: QA rows now carry user_id and /history is scoped to the asker, so questions over shared demo docs no longer leak across users. - Require auth on /evaluate and /demo/seed (resource-amplification guard). - Guest accounts use CSPRNG creds (crypto.getRandomValues) independent of the email; add a token-type claim; guard citations against a deleted parent doc. Feature: "Continue with Google" (Google Identity Services ID-token flow): - POST /auth/google verifies the ID token (google-auth: aud + iss + email_verified) and get-or-creates the user; password_hash is now nullable for OAuth-only accounts. Gated on GOOGLE_CLIENT_ID (button hidden when unset); /health exposes google_client_id. UX/a11y: honest "session expired" messa…90adb95 -
Add user accounts: registration, login (JWT + bcrypt), per-user documents
Aissugur Kurganbekov +1: Claude Opus 4.8Backend: - User model + nullable owner_id on Document (NULL = shared demo/eval docs). - security.py (bcrypt via passlib, PyJWT HS256) and auth.py (/auth/register, /auth/login, /auth/me + get_current_user). Generic 401 with a dummy-hash compare on miss (no user enumeration), 409 on duplicate, EmailStr validation. - /documents*, /ask, /history now require a Bearer token and are scoped to the user's own docs + shared demo docs; cross-user access returns 404 (never leaking ids). /health, /evaluate, /demo/seed stay public. AUTH_SECRET_KEY is env-driven (prod hard-fail, dev default + warning). - conftest authed-by-default so the 12 existing API tests are unchanged; new test_auth.py (register/login/me/protected/per-user isolation). 38 tests pass, live end-to-end verified. Frontend: - Split-layout AuthScreen (sign in / sign up toggle, validation, show/hide password, "Continue with the demo" guest path) in the light theme. - api.js routes every request through a Bearer wrapper …165a274
-
FinanceFlow AI: source-grounded RAG Q&A over finance documents
Aissugur Kurganbekov +1: Claude Opus 4.8 (1M context)Full-stack MVP: FastAPI + SQLite backend, React/Vite frontend. - Upload PDF/TXT -> chunk -> TF-IDF retrieval -> focused extractive answer - Two abstention gates + citations for anti-hallucination - Golden-dataset evaluation (UI + CLI) with coverage/abstention/evidence metrics - One-click demo mode, sample-question chips, clean B2B dashboard - Logging, global exception handler, validated/typed API with Swagger docs - 19 pytest tests + GitHub Actions CI - Dockerfiles, docker-compose, Makefile Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>fc5156b