Day 3: When a Document Assistant Answers Without Evidence Diagram

The practical problem

A confident answer cites an outdated or inaccessible policy.

Conditions and side paths

Insufficient evidence returns an explicit no-supported-answer response before generation.
A separate ingestion process preserves document ID, version, location, and access metadata.
Authorization applies before evidence reaches the model and again when source links are opened.

One lesson

Retrieve authorized, versioned evidence and allow the system to abstain.
Proposed teaching design; not a measured deployment or benchmark.