Free tool
Skill Auditor
Score your SKILL.md on trigger precision, instruction completeness, output contract, and scope discipline.
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Weighs trigger precision heaviest — the failure mode that actually breaks skills: mis-triggering or never triggering at all.
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Every trigger-precision finding proposes the actual replacement description sentence, not just "be more specific".
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Flags scope creep: multiple unrelated capabilities crammed into one skill file, and says which should split off.
Frequently asked questions
This tool is powered by Claude (Anthropic).
A description with concrete positive triggers (exact phrases, file types, task shapes) and explicit negative triggers, plus a body with numbered, executable steps and a concrete output contract — not a vague description of what the skill "helps with".
Every run — including the file you paste — is logged the same way as any other Tool Platform run, for abuse prevention and diagnostics. It is not added to any list, shared, or used for anything beyond that. See our privacy policy for details.
Most skill files fail at triggering, not at execution: a vague description makes a skill activate at the wrong moments or never activate when it should, regardless of how good its instructions are.