Grounded retrieval for runbooks

Retrieval quality, not model size, is the limiting factor for useful operational answers.

Answer on-call questions strictly from indexed runbooks, with citations and an explicit no-answer state.

Documents are chunked by heading, embedded and stored with their source anchor. Answers must cite at least one retrieved chunk or refuse.

Placeholder — implementation notes will be published as the experiment progresses.

Placeholder — findings pending.

Build an evaluation set that specifically tests refusal behaviour.