汎用utilityコマンド集（issue計画、コミット整理、多角的視点分析など）
/plugin marketplace add masseater/claude-code-plugin/plugin install mutils@masseater/claude-code-pluginEasily create hooks to prevent unwanted behaviors by analyzing conversation patterns
Adds educational insights about implementation choices and codebase patterns (mimics the deprecated Explanatory output style)
Migrate your code and prompts from Sonnet 4.x and Opus 4.1 to Opus 4.5.
Frontend design skill for UI/UX implementation