Public walkthroughs for systems that need more than a demo.

Why this matters

Grounded legal QA with a real abstain path

This is the kind of surface that looks fine in a demo and becomes expensive the moment somebody trusts it.

Happy path

The request lands on the right corpus slice, retrieval stays narrow, and the answer only states what the sources actually support.

• Query classification routes the question into the legal answerer rather than a generic assistant flow.
• Hybrid retrieval pulls a small candidate set, then reranking and source checks narrow the final context.
• The answer cites the relevant source fragments and stays within what they actually support.

Why this is useful

This is not a decorative architecture diagram. It is a compact way to show where production thinking starts and demo thinking usually runs out.