Built a free tool to dedupe/clean up your Claude Code (and Codex) SKILL.md files
I’ve had this annoying pinch point for a while.
Claude Code, Codex, and similar agent tools can write their own SKILL.md files when they hit something they don’t already know how to do.
Useful as fuck at first.
Then a few weeks/months later you’ve got duplicates, stale skills nobody uses, broken references, and if you’re using both Claude Code + Codex, two versions of basically the same skill slowly drifting apart.
So I built a small free CLI to clean that shit up.
scan — finds stale skills + near duplicates
verify — catches broken references, placeholder text and weak frontmatter
crosscheck — compares skill folders across tools and shows what’s missing or drifted
exec-verify — experimental, actually throws a skill into a fresh agent session to see if it can still do what it claims
No LLM calls, no network calls, no dependencies. Just Python stdlib.
It also auto-detects the usual Claude/Codex/Cursor skill folders, link for anyone interested:
github.com/OfficialUlix/skill-curator-cli
Free, MIT licensed.
Curious if anyone else running Claude Code + Codex together ends up with the same mess, or if I’ve somehow manufactured this problem for myself 😂