refactor

在保持功能不变的前提下，对代码进行清理与重构。去除冗余代码，优化代码结构。

SKILL.md

--- frontmatter

name: refactor
description: Clean up and refactor code while maintaining functionality. Removes dead code, improves structure.
disable-model-invocation: true
allowed-tools:
  - Read
  - Grep
  - Glob
  - Bash
  - Edit

Refactor & Clean

Clean up code while maintaining functionality.

Scope

Specify what to refactor:

•A specific file
•A feature/module
•Dead code removal
•Pattern application

Process

•Run tests first - Ensure green baseline
•Identify issues - List what needs improvement
•Refactor incrementally - One change at a time
•Run tests after each change - Never break functionality
•Final verification - All tests pass

Common Refactorings

Dead Code Removal

•Unused imports
•Unused variables/methods
•Commented-out code
•Unreachable code

Code Quality

•Extract long methods
•Remove duplication
•Improve naming
•Simplify conditionals

Pattern Application

•Extract interface
•Apply dependency injection
•Use builder pattern
•Apply strategy pattern

Rules

•⚠️ NEVER refactor without tests
•⚠️ One refactoring at a time
•⚠️ Run tests after each change
•⚠️ Commit frequently

Output Format

Baseline

•Tests: X passing, Y failing
•Files to refactor: list

Changes Made

File	Refactoring	Tests
...	...	✅

Final State

•Tests: X passing, 0 failing
•Lines removed: N
•Complexity reduced: description