When your AVFoundation camera preview freezes or rotates wrong, this skill walks you through systematic diagnostics based on real-world failure patterns. It prioritizes threading issues (35% of problems) and session lifecycle bugs (25%) before you waste time on capture logic. Built from the charleswiltgen/axiom repository, it covers the usual suspects: work happening on main thread, interrupted sessions, deprecated rotation APIs, and permission states. The percentages feel anecdotal but the checklist approach is solid. Most useful when you're staring at a black preview rectangle and need to methodically eliminate causes instead of randomly tweaking configuration presets.
npx skills add https://github.com/charleswiltgen/axiom --skill axiom-camera-capture-diag