# Agent Skills (Addy Osmani)

> A repository of 25 engineering skills for coding agents

- Category: Agent skills (`skills`)
- Tags: `free`, `open-source`, `claude-code`
- Official: https://github.com/addyosmani/agent-skills
- Wunderlust: https://wunderlust.xyz/r/agent-skills-addy-osmani
- Image: https://wunderlust.xyz/media/agent-skills-addy-osmani-poster.jpg
- Video preview: https://wunderlust.xyz/media/agent-skills-addy-osmani.webm
- Added: 2026-11-05

## What it is

Addy Osmani's Agent Skills collects 25 Markdown workflows for coding agents, from planning to deploy, with slash commands and four review personas.

## What it’s for

To give the agent reusable engineering practices, such as spec-driven development, TDD and code review.

## Benefits

- 24 lifecycle skills and one routing meta-skill
- Commands such as /spec, /plan, /build, /test and /ship
- Personas: code-reviewer, test-engineer, security-auditor and web-performance-auditor
- Installs in Claude Code, Cursor, Codex, Gemini CLI and others

## Caveats

- MIT license, according to the repository.
- Claims about ease and cost come from its creator and were not verified.

## Similar on Wunderlust

- [gstack](https://wunderlust.xyz/r/gstack.md): Garry Tan's kit that turns Claude Code into a virtual engineering team
- [Superpowers](https://wunderlust.xyz/r/superpowers.md): Skills framework that imposes a development method on coding agents
- [Android Skills](https://wunderlust.xyz/r/android-skills.md): Google's skills for coding agents working on Android projects
- [GSAP Skills](https://wunderlust.xyz/r/gsap-skills.md): GSAP's official skills for agents to generate correct animation code
- [Anthropic Skills](https://wunderlust.xyz/r/anthropic-skills.md): Anthropic's official repository of example skills for Claude
- [Stitch Skills](https://wunderlust.xyz/r/stitch-skills.md): Skills for agents to work with Google Stitch and its MCP server