Demo lane · Computer science

The live web lane: CS answers with guarded logging.

This is the lane the homepage demo runs on — a curated computer-science and security corpus served through the full web pipeline: validation, prompt guard, rate limiting, retrieval, and citation construction.

Open the live demo

Use case

Anyone evaluating the end-to-end web flow rather than the CLI: the same retrieval engine, but exposed through a public, rate-limited API with the privacy guarantees enforced at the HTTP boundary.

Knowledge source

Curated markdown/text files in data/knowledge/, chunked to ≤ 2,000 chars by scripts/ingest.ts.

Curated question set

Questions this lane ships with

These are the homepage demo presets. A 20-question eval corpus (data/evals/test-questions.jsonl) runs nightly in CI, scored 40% keyword match / 30% citations / 20% non-empty / 10% latency, with a ≥ 50% pass gate.

What is RAG and how does it work?
Explain the difference between symmetric and asymmetric encryption
What are common SQL injection prevention techniques?

Sample run

Captured transcript

No captured run is published for this lane yet. This slot only ever shows verbatim output from a real run — nothing on this page is synthetic. Use the commands in the “Run it locally” section below with credentials and a corpus in place.

Privacy & logging

What gets recorded

The route hashes the query before anything else; responses return q_hash and q_len so callers can verify what is retained.
A prompt-injection guard screens inputs before retrieval and generation.
Rate limiting and Sentry PII scrubbing are enforced at the API boundary, not left to the client.

Run it locally

npm run ingest        # data/knowledge/ -> Supabase
npm run dev
curl -X POST http://localhost:3000/api/answer \
  -H "Content-Type: application/json" \
  -d '{"query":"What is RAG?"}'
npm run evals         # score the 20-question corpus

Source: app/api/answer/route.ts · scripts/ingest.ts · data/evals/test-questions.jsonl