Agent Skills by Addy Osmani
Engineering workflow skills that steer AI coding agents from spec to ship
What it is
A pack of 25 skill files and nine slash commands that walk an AI coding agent through defining, planning, building, testing, reviewing, and shipping software. Skills cover practices such as test-driven development, API design, code review, web performance audits, and code simplification, and some activate on their own based on the task at hand. Developers using Claude Code, Cursor, Codex, Gemini CLI, Copilot, and similar agents install them to get more disciplined, consistent output from their assistant.