az9713/addyosmani-agent-skills — reverse-engineered prompt

I want a repo I can drop into coding agents like Claude Code, Cursor, Codex, Gemini, Windsurf, and Copilot so they follow a reliable senior engineer style workflow instead of just jumping straight into code. Make it a reusable set of plain Markdown skills and agent instructions that cover the full path from shaping an idea and writing a spec, to planning tasks, building in small safe steps, testing, reviewing, simplifying messy code, and finally shipping.

Please include simple slash commands like /spec, /plan, /build, /test, /review, /code-simplify, and /ship, and have the right skills kick in automatically when the work is about UI, API design, debugging, browser testing, security, performance, or giving the agent better context.

I also want clear setup docs for each supported tool, plus practical examples so someone can start using the skills right away. Keep it production focused, with quality checks and best practices baked in, not just a loose prompt pack. If needed, look up the latest setup details online and make it all feel polished and easy to use.