Agent Skills by Addy Osmani
20 production-grade engineering skills — spec, plan, build, test, review, ship.
About
A skill pack by Addy Osmani (ex-Google engineering leader) that turns AI coding agents into a disciplined engineering team. Twenty skills encode senior-engineer workflows — spec-before-code, test-driven development, code review gates — with slash commands mapping the full lifecycle. Skills also auto-activate by context: designing an API triggers the API-design skill automatically.
# Inside Claude Code:
/plugin marketplace add addyosmani/agent-skills
/plugin install agent-skills@addy-agent-skills
# Other tools: skills are plain Markdown — copy into .cursor/rules/Copy individual commands
- Inside Claude Code::
/plugin marketplace add addyosmani/agent-skills /plugin install agent-skills@addy-agent-skills
More in Claude Skills
View all
Anthropic Agent Skills
Anthropic's official skill collection — documents, spreadsheets, design and more.
Claude Red
78 offensive-security skills in 23 categories as drop-in SKILL.md playbooks that turn Claude Code into a red team operator.
Claude Code Templates
Open registry + CLI for Claude Code components — skills, agents, commands, MCPs and more, installable one at a time.