AGENT-SKILLS-COMPLIANCE-BRIEF.md 3.0 KB

Agent Skills Spec Compliance Brief

Bring all 66 skills in claude-mods into compliance with the Agent Skills specification at https://agentskills.io/specification

Background

The Agent Skills format (originally by Anthropic, now an open standard backed by Vercel, Google, Microsoft, and 40+ agent platforms) has a formal spec. Our skills are ~80% compliant but have non-standard top-level frontmatter fields that need to move into the metadata: block.

The spec allows exactly these top-level frontmatter fields:

  • name (required) - lowercase, hyphens, 1-64 chars, must match directory name
  • description (required) - 1-1024 chars
  • license (optional)
  • compatibility (optional) - 1-500 chars
  • allowed-tools (optional, experimental) - space-delimited
  • metadata (optional) - arbitrary key-value map

Everything else is non-standard and should move into metadata:.

Changes Required Per Skill

For each of the 66 SKILL.md files:

  1. Move related-skills into metadata.related-skills (comma-separated string)
  2. Move depends-on into metadata.depends-on (comma-separated string)
  3. Move version into metadata.version (if present)
  4. Move category into metadata.category (if present)
  5. Move requires into metadata.requires-bins / metadata.requires-skills
  6. Move cli-help into metadata.cli-help
  7. Add license: MIT if missing
  8. Add metadata.author: claude-mods if no metadata block exists
  9. Ensure compatibility stays top-level (it's spec-compliant already)
  10. Ensure allowed-tools stays top-level (spec-compliant)

Example Transform

Before

---
name: pigeon
description: "Inter-session pmail..."
allowed-tools: "Read Bash Grep"
related-skills: [sqlite-ops]
---

After

---
name: pigeon
description: "Inter-session pmail..."
license: MIT
allowed-tools: "Read Bash Grep"
metadata:
  author: claude-mods
  related-skills: "sqlite-ops"
---

Directory Structure Convention

The spec recommends these optional dirs alongside SKILL.md:

  • scripts/ - executable code
  • references/ - documentation loaded on demand
  • assets/ - templates, resources

Create scripts/ and assets/ with .gitkeep where missing. Most skills already have references/.

Do NOT Change

  • Markdown body content after frontmatter
  • File paths, directory names
  • Content in references/, scripts/, assets/

Validation

After changes, frontmatter should pass: npx skills-ref validate ./skills/<name>

Or manual check: only name, description, license, compatibility, allowed-tools, and metadata at the top level.

Execution

# From claude-mods root
claude -p "Update all 66 SKILL.md files in /Users/mack/projects/claude-mods/skills/ to comply with Agent Skills spec. [paste this brief as context]" --dangerously-skip-permissions

Reference