skill-usage-stats

Archive (not delete) Claude Code and Codex skills that are zero-use or stale (>90 days unused) based on a generated skill-stats.html report. Renames the SKILL.md inside each archived directory so agents stop discovering them, while keeping all content recoverable. Triggers — "clean up skills", "archive unused skills", "스킬 정리", "안 쓰는 스킬 정리", "skill archive".

Generate an HTML dashboard of skill usage across Claude Code and Codex (global + project .claude/skills, ~/.codex/skills, ~/.codex/prompts). Counts invocations, last-used date, days-since-use, session reach, and on-disk size so you can decide which skills to keep, archive, or delete. Triggers — "skill usage stats", "which skills do I actually use", "clean up skills", "audit my skills", "스킬 사용 통계", "안 쓰는 스킬", "스킬 정리".