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Updated 5d ago

by olgasafonova

SkillCheck-Free

Validate Claude Code skills against the agentskills specification (Free tier)

  • Active — Updated in the last 14 days
Works with
  • Claude
View on GitHub (opens in a new tab)

41 GitHub stars (41)

+2 in 20 days

Stars gained per day · daily snapshots since Sep 26
Stars gained per day, Sep 26 to Oct 16: +2 in total; the busiest day was Sep 29 with +1 stars.Sep 27: 0 starsSep 28: 0 starsSep 29: +1 starsSep 30: 0 starsOct 1: 0 starsOct 2: 0 starsOct 3: 0 starsOct 4: 0 starsOct 5: 0 starsOct 6: 0 starsOct 7: 0 starsOct 8: 0 starsOct 9: +1 starsOct 10: 0 starsOct 11: 0 starsOct 12: 0 starsOct 13: 0 starsOct 14: 0 starsOct 15: 0 starsOct 16: 0 stars
Stars gained between daily snapshots
PeriodNew stars
Sep 270
Sep 280
Sep 29+1
Sep 300
Oct 10
Oct 20
Oct 30
Oct 40
Oct 50
Oct 60
Oct 70
Oct 80
Oct 9+1
Oct 100
Oct 110
Oct 120
Oct 130
Oct 140
Oct 150
Oct 160
  • 1 skill (1 skills found in its SKILL.md files)
  • 2 forks (2 forks)
  • 5d ago last update (Last updated 5d ago)

Install

Skills CLI

npx skills add olgasafonova/SkillCheck-Free

Asks which agents to install it for. Add -g to install it for every project.

Claude Code

git clone https://github.com/olgasafonova/SkillCheck-Freecp -r "SkillCheck-Free/skills/skill-check" ~/.claude/skills/

Copies the skill-check skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project).

Plugin

/plugin marketplace add olgasafonova/SkillCheck-Free

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

  • skill-check

    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 engagemen…

    skills/skill-check/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.