Writes comprehensive READMEs serving both human readers and AI agent readers. Use when user says "用 GitHub Skill", "productize README", or asks to create a product-grade README for a repo.
Use when you have a written implementation plan to execute in a separate session with review checkpoints
Use when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not performative agreement or blind implementation
Use when completing tasks, implementing major features, or before merging to verify work meets requirements
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Use when implementing any feature or bugfix, before writing implementation code
Use when you have a documented task with clear intention and need to classify it (type + weight) before any decomposition or coding — the CTO function that decides HOW to execute
Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection and safety verification