RAG Docs Agent

Answers questions from documentation with cited, grounded sources — refuses to guess outside its docs.

1. 1.Your question is embedded into a 768-dim vector with Gemini.
2. 2.Postgres/pgvector finds the closest documentation chunks by cosine similarity.
3. 3.Gemini writes a grounded answer, citing the chunks it actually used.

Docs corpus: a small fictional REST API ("Acme Tasks API") — ask about authentication, endpoints, rate limits, or errors. Off-topic questions get an honest "I don't know" instead of a guess.