Audit your Claude Code skills — token overhead, usage frequency, prune candidates
❯ npx cc-skill-audit
cc-skill-audit Skill token overhead analyzer
Summary
Skills installed 109
Index overhead 2.3K tokens (loaded every session)
Total content 348.6K tokens (loaded on invocation)
Usage lookback 30 days
Top 20 skills by size (30d usage)
Skill Tokens Use Bar
writing-skills 21.7K 0 ██████████████
pptx 14.3K 0 █████████░░░░░
docx 12.9K 0 ████████░░░░░░
nano-banana-pro 9.2K 4 ██████░░░░░░░░
playwright 7.6K 2 █████░░░░░░░░░
...
Prune candidates (>5K tokens, 0 uses in 30d)
Removing these would save ~82.2K tokens when invoked
✗ writing-skills 21.7K tokens
✗ pptx 14.3K tokens
✗ docx 12.9K tokens
Active (used in 30d): 45 / 109
Never used in 30d: 64 skills
Options
--top <N>
Show top N skills by size (default: 20)
--days <N>
Lookback window for usage (default: 30)
--json
Machine-readable JSON output