What problem does it solve? Retrieval quality audits only measure files that named queries in queries.yaml actually target, leaving large parts of the documentation corpus with unmeasured retrieval quality. This Skill walks the corpus, compares every file against the expected results of all queries, and produces a gap report so you know exactly which files have zero eval coverage. ## Core Features & Use Cases - Coverage Gap Detection: Enumerates all Markdown files in the corpus, extracts covered paths from queries.yaml, and computes the uncovered set with shell or PowerShell commands. - Prioritised Query Proposals: Classifies uncovered files by path pattern (ADRs, architecture docs, roadmap, playbooks) and drafts new queries in the queries.yaml schema for high and medium priority files. - Audit Integration: Reminds you to register new query IDs in compare_queries.py slices so parity audits actually pick them up. - Use Case: After merging ADR-0030 with three new files, run this Skill to confirm which files lack coverage, draft two targeted queries, append them to queries.yaml, and verify coverage count rises accordingly. ## Quick Start Run the rag-eval-coverage skill against docs and .github/context to list uncovered files and draft queries for the high-priority ones.