010104 Skill Creator

Skill Creator Guide

This skill teaches you how to create, test, package, and distribute AI agent skills following the standard Agent Skills format.

How to use this skill

1. If the user asks about basic concepts or structure → read references/structure.md
2. If the user asks about frontmatter or description → read references/frontmatter.md
3. If the user asks about writing style or patterns → read references/writing.md
4. If the user asks about testing, evals, or iteration → read references/testing.md
5. If the user asks about packaging or distribution → read references/distribution.md
6. If the user asks about repo architecture or marketplace → read references/repo-architecture.md
7. If the user asks to scaffold a new skill → run python scripts/scaffold.py <skill-name> --category <category/subcategory>

Quick reference checklist

• Choose a kebab-case name matching the directory (max 64 chars, lowercase + hyphens only)
• Write frontmatter with name and description (include trigger contexts, desc ≤ 1024)
• Optionally add compatibility (≤ 500 chars), license, metadata, allowed-tools
• Keep SKILL.md under 100 lines — use references/ for detailed content
• Write in imperative tone, explain the why, include examples
• Add at least one Python script to scripts/ (no external deps)
• Create evals/evals.json with test prompts
• Run validation: python3 tools/validate-all.py from repo root

References

• references/structure.md — Directory layout, progressive disclosure, size limits
• references/frontmatter.md — Name rules, description rules, optimization
• references/writing.md — Tone, examples, explaining reasoning, keeping lean
• references/testing.md — Evals, assertions, grading, benchmarking, iteration
• references/distribution.md — Marketplace.json, packaging, install
• references/repo-architecture.md — Multi-category repo structure, validate-all.py, hierarchy
• scripts/scaffold.py — Creates a new skill skeleton with --category support