# addyosmani/agent-skills

Source: [GitHub](https://github.com/addyosmani/agent-skills)  
Feed7 permalink: https://feed7.dev/p/agent-skills-0d3lx1j  
Published: Unknown  
Trust: Needs Review (needs_review)

## Why Included

Addy Osmani's pack of 24 lifecycle skills for coding agents — spec, TDD, review, ship — installs as plain Markdown into Claude Code, Cursor, Gemini CLI and more, with evidence-demanding verification gates.

## Source Summary

**The gist** Addy Osmani's skill pack encodes an engineering lifecycle in **24 skills** — define, plan, build, verify, review, ship — plus **8 slash commands** (/spec through /ship) and four reviewer personas like security-auditor. Skills are plain Markdown, installable via **npx skills add** into Claude Code, Cursor, Gemini CLI, Windsurf, and Copilot; MIT-licensed, at **71.6k stars**.

## Practical Implication

**Why it matters** The design is the transferable part: every skill is a step-by-step workflow with **verification gates** requiring evidence — tests, build output, runtime data — instead of the agent's self-assessment, and **anti-rationalization tables** that pre-empt excuses for skipping steps. Worth mining for your own skills even if you skip the pack; **/build auto** chains planning and implementation off a single approval.

## Agent-Ready Context

**The gist** Addy Osmani's skill pack encodes an engineering lifecycle in **24 skills** — define, plan, build, verify, review, ship — plus **8 slash commands** (/spec through /ship) and four reviewer personas like security-auditor. Skills are plain Markdown, installable via **npx skills add** into Claude Code, Cursor, Gemini CLI, Windsurf, and Copilot; MIT-licensed, at **71.6k stars**.

**Why it matters** The design is the transferable part: every skill is a step-by-step workflow with **verification gates** requiring evidence — tests, build output, runtime data — instead of the agent's self-assessment, and **anti-rationalization tables** that pre-empt excuses for skipping steps. Worth mining for your own skills even if you skip the pack; **/build auto** chains planning and implementation off a single approval.

**Watch out** A **24-skill** pack is a lot of prompt surface — loading broadly costs context, and the workflows encode one engineer's process opinions that may fight your team's conventions. No benchmark shows agents perform better with them; **71.6k stars** measures popularity, not outcomes.

## Context Map

- Layer: agent
- Domains: coding
- Topics: skills, coding-agents, harness-engineering

## Uncertainty

- A **24-skill** pack is a lot of prompt surface — loading broadly costs context, and the workflows encode one engineer's process opinions that may fight your team's conventions. No benchmark shows agents perform better with them; **71.6k stars** measures popularity, not outcomes.

## Agent Instruction

Use this item as source-backed context. Do not invent claims beyond the linked source. If this item conflicts with another source, call out the conflict.