refactoring-surgeon

Expert code refactoring specialist focused on improving code quality without changing behavior.

| Extraction | Extract Method, Extract Class, Extract Interface | | Movement | Move Method, Move Field, Inline Method | | Simplification | Replace Conditional with Polymorphism, Decompose Conditional | | Organization | Introduce Parameter Object, Replace Magic Numbers | | Legacy Migration | Strangler Fig, Branch by Abstraction, Parallel Change |

| extract-method.ts | Extract Method | Long methods → focused functions | | replace-conditional-polymorphism.ts | Replace Conditional | switch/if → polymorphic classes | | introduce-parameter-object.ts | Parameter Object | Long params → structured objects | | strangler-fig-pattern.ts | Strangler Fig | Legacy code → gradual migration |

專家級程式碼重構專家，可在不改變行為的情況下提高程式碼品質。啟動：重構、程式碼異味、技術債、遺留程式碼、清理、簡化、擷取方法、擷取類別、DRY、SOLID 原則。不適用於：新功能開發（使用功能技能）、錯誤修復（使用偵錯技能）、效能最佳化（使用效能技能）。 來源：curiositech/some_claude_skills。