Agent Skills by Addy Osmani
Production-grade engineering skills for AI coding agents, mapped to the development lifecycle -- spec, plan, build, test, review and ship.
- Actively maintained
- Permissive license
Overview
This collection packages the workflows and quality gates senior engineers follow into skills a coding agent applies consistently. Nine slash commands (/spec, /plan, /build, /test, /review, /ship and more) map to each phase of development and activate the right skills, while other skills trigger on their own -- designing an API pulls in interface-design guidance, building UI pulls in frontend engineering rules. /build auto can turn an approved plan into an implementation in one pass.
It installs into 70+ agents (Claude Code, Cursor, Codex, Copilot, Cline and others) with one npx skills add command, either as the whole set of 25 skills or one skill at a time. A good fit for teams that want review, testing and performance standards enforced by the agent rather than remembered by people.
Why it's in this catalog
Catalog rating: ★★★★☆ (4/5)
A broad, well-organized engineering skill set tied to the full development lifecycle, with one-command install across most agents.
- Emerging
- Community-driven
- Categories
- AI Agents & Agent Tools
- Languages
- TypeScript, JavaScript, Shell
- License
- MIT
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