Gap Detection Overview This skill performs a structured health-check scan on session start (or on-demand) to surface: 1. Files missing README / documentation headers 2. Test coverage gaps (source files without corresponding test files) 3. TODO / FIXME counts and locations 4. Undocumented public APIs and exports Use this skill before beginning any significant work in an unfamiliar codebase, or as a recurring quality gate. When to Use - Session start in a new or unfamiliar repository - Before planning a feature to understand existing quality debt - During code review to identify undocumented ad…