validate-skills

SKILL.md

Validate Skills

Validate all skills in skills/ against the agentskills.io spec and Claude Code best practices.

Validation Checklist

For each skill directory, verify:

Spec Compliance (agentskills.io)

Check Rule
name format 1-64 chars, lowercase alphanumeric + hyphens, no leading/trailing/consecutive hyphens
name matches directory Directory name must equal name field
description length 1-1024 characters, non-empty
Optional fields valid license, metadata, compatibility if present

Best Practices (Claude Code)

Check Rule
Description format Third person, describes what + when to use
Body length Under 500 lines
References one-level deep No nested reference chains
Links are markdown Use [text](path) not bare filenames
No redundancy Don't repeat description in body
Concise Only add context Claude doesn't already have

How to Run

  1. Find all skill directories:

    fd -t d -d 1 . skills/
    
  2. For each skill, read SKILL.md and check against the rules above

  3. Report issues in this format:

    ## Validation Results
    
    ### skills/example-skill
    - [PASS] name format valid
    - [FAIL] name "example" doesn't match directory "example-skill"
    - [PASS] description length OK (156 chars)
    

References

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