callstackincubator 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.mdand check against the rules aboveReport 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)