Try a question: “Do I need to follow the manufacturer detail if the building control drawing does not show it?”
Source-grounded construction AI
Ask the site question first.
Site Assistant is being built around the interaction interface: ask a question, add project context if needed and get a clear answer with the source trail underneath.
Morning prototype
What works today
This is a working retrieval prototype. Questions are sent to the VPS API, which searches the ingested source corpus and returns cited evidence.
Active backend
Active stack
FastAPI calls a LangGraph workflow, which routes safe construction questions into a Haystack RAG pipeline over Postgres + pgvector with citations and answer checks.
Assistant interface