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Addy Osmani Agent Skills

A popular engineering skill pack covering specs, planning, incremental implementation, testing, review, simplification, and shipping.

Repository
addyosmani/agent-skills
Skill path
skills/*/SKILL.md
Systems
Claude Code, Codex, Cursor, Windsurf / Devin, Gemini CLI, OpenCode, Zed
Install
npx add-skill addyosmani/agent-skills
GitHub stars
48,672
Updated
2026-06-06
Source
README

What it is

Addy Osmani's agent-skills repository packages senior-engineering workflows as skills. The README presents a development lifecycle with commands for spec, plan, build, test, review, simplification, and shipping.

Why it is useful

The pack is broad but coherent. It is useful when you want agents to follow repeatable engineering gates instead of improvising a new process for every task.

Notable skills

  • code-review-and-quality
  • debugging-and-error-recovery
  • browser-testing-with-devtools
  • security-and-hardening
  • performance-optimization
  • planning-and-task-breakdown

Notes

Because the pack is large, install only the skills you actually want active. Broad lifecycle packs can over-trigger if descriptions are too general for your workflow.