# Answers it can back up, or it says no

AI that answers from your own files

Canonical URL: https://ai.stumason.dev/proof/rag

An assistant that answers from your own documents, shows where each answer came from, and refuses to guess when it does not know.

Receipts: cited answers · refuses to guess

Part of Stu Mason's proof set: real production AI you can open and inspect. See the offer: https://ai.stumason.dev/work-with-me  ·  full index: https://ai.stumason.dev/llms.txt  ·  open MCP (no key): https://ai.stumason.dev/mcp/stu