Interactive Developer Utility
SKILL.md Spec Validator & Linter
Validate and audit your AI Agent Skill manifest against the RFC specification. Real-time frontmatter parsing, security vulnerability scans, token footprint estimation, and runtime compatibility checks.
SKILL.md Source Manifest
Characters: 981Lines: 32Approx. Ingest Tokens: ~246
Validation & Audit Score
100/100 PASSEDYAML Frontmatter Header (---) Valid
Skill Slug ID (name)my-custom-skill
Semantic DescriptionClear (>20 chars)
## When to Invoke Section Included
## Execution SOP Section Included
## Verification Checklist Included
Context Token Footprint
Idle (JIT Index):
~84 tokens
Active (Full SOP):
~246 tokens
Verified Compatible Runtimes:
Codex NativeClaude CodeCursor ComposerWindsurf Cascade