skill-validator

Installation
SKILL.md

Instructions

Use this skill to validate any Agent Skill directory against the specification before publishing. The validator checks:

  • SKILL.md presence - Required manifest file exists
  • Frontmatter format - Valid YAML frontmatter with required fields
  • Name validation - 1-64 chars, lowercase, hyphens only, starts with letter
  • Name-directory match - Name field matches the directory name
  • Description validation - 1-1024 characters, non-empty
  • Structure validation - Valid folder organization

When to Use

  • Before submitting a skill for publication
  • After making changes to SKILL.md
  • To diagnose why a skill was rejected
  • As part of CI/CD pipelines

How to Use

Related skills
Installs
7
GitHub Stars
1
First Seen
Mar 1, 2026