Validate Claude Code skills against Anthropic guidelines. Use when user says "check skill", "skillcheck", "validate SKILL.md", or asks to find issues in skill definitions. Covers structural and semantic validation. Do NOT use for anti-slop detection, security scanning, token analysis, enterprise checks, or Eval Kit generation; use skill-check-pro for those. Do NOT use for LinkedIn skill engagement; use skillcheck-engage for that.
How to install skill-check?
olgasafonova/skillcheck-free/skill-check
$npx -y skills add olgasafonova/skillcheck-free --skill skill-checkInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/olgasafonova/skillcheck-free" --skill "olgasafonova/skillcheck-free/skill-check"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/olgasafonova/skillcheck-free" that are relevant to the current task. Run `npx skills add "https://github.com/olgasafonova/skillcheck-free"` and select the relevant skills, then follow their instructions.
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