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Agent Skills by Addy Osmani

Self

Open-source tool. Self-hosted setup.

Production-grade engineering skills for AI coding agents.

Maintained by Google Chrome engineering lead Addy Osmani, this collection focuses on the practices that separate demo code from shippable code — performance, testing rigor, and code review discipline. It's a widely cited reference for what a serious, professionally maintained skill pack should contain.

  • Author-vetted engineering practices, not community-scraped content
  • Emphasis on production readiness: testing, performance, review workflows
  • Compatible with Claude Code and other Agent-Skills-standard harnesses
  • MIT licensed, actively maintained

Things to Know About Self-Hosted

Self-hosted tools are open-source apps you install on your own server to replace SaaS products. You get full control and often zero license cost, but you're responsible for setup, security, backups, and uptime.

  • Caution: You might need capable hosting or a VPS
  • Caution: Setup requires technical experience
  • Caution: You manage updates and patches
  • Caution: Security and backups are your job
  • Caution: Uptime depends on your server
  • Caution: Scaling may need extra work

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Agent Skills by Addy Osmani | S100K