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
-
Find all skill directories:
fd -t d -d 1 . skills/-
For each skill, read SKILL.md and check against the rules above
-
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)