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

1. Run tests first - Ensure green baseline
2. Identify issues - List what needs improvement
3. Refactor incrementally - One change at a time
4. Run tests after each change - Never break functionality
5. 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