validate-skills

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

| 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 |

| 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 not bare filenames | | No redundancy | Don't repeat description in body | | Concise | Only add context Claude doesn't already have |