by agent-ecosystem · Agent Tool · ★ 124
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skill-validator A CLI tool that validates and scores Agent Skill packages. Spec compliance is table stakes. goes further: it checks that links actually resolve, flags files that shouldn't be in a skill directory, reports token counts so you can see how much of an agent's context window your skill will consume, analyzes content quality metrics, detects cross-language contamination, and offers LLM-as-judge scoring to evaluate skill quality across dimensions like clarity, actionability, and novelty. A spec-compliant skill that has broken links or a 60k-token reference file will technically pass the spec but perform poorly in practice. Table of Contents Install CLI Homebrew Using Go Pre-commit hook As a library Command Usage validate structure validate links analyze content analyze contamination check score evaluate score report [Output Formats](#output-f
| Stars | 124 |
| Forks | 18 |
| Language | Go |
| Category | Agent Tool |
| License | MIT |
| Quality Score | 67.7544621291371/100 |
| Open Issues | 23 |
| Last Updated | 2026-04-29 |
| Created | 2026-02-13 |
| Platforms | go |
| Est. Tokens | ~35k |
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skill-validator is Validate Skill content against Agent Skill specification, with additional content density and quality checks.. It is categorized as a Agent Tool with 124 GitHub stars.
skill-validator is primarily written in Go.
You can find installation instructions and usage details in the skill-validator GitHub repository at github.com/agent-ecosystem/skill-validator. The project has 124 stars and 18 forks, indicating an active community.
skill-validator is released under the MIT license, making it free to use and modify according to the license terms.
The top alternatives to skill-validator on Agent Skills Hub include awesome-android-agent-skills, claude-code-skill-factory, claude-plugins. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.