dry

name	dry
description	Refactor duplicated code by extracting helpers, shared abstractions, or clearer reusable structure. Use when asked to apply DRY, remove duplication, consolidate repeated logic, or run `/refactor:dry`.
metadata	{"legacy-name":"refactor:dry"}

DRY Refactor

Ask the user for the file or directory to refactor. Support multiple files if a directory is provided.

Process

Work through these steps in order, making a separate commit for each extraction:

1. Extract simple helper methods (strings, calculations, parsing)

   • Identify duplicated logic
   • Extract to focused method with clear name
   • Remove duplicated code immediately after extraction
   • Commit the extraction

2. Extract complex methods with parameters

   • Find similar code blocks with variations
   • Extract with parameters to handle variations
   • Remove duplicated code immediately after extraction
   • Commit the extraction

3. Apply design patterns when beneficial

   • Template Method, Strategy, etc. for structural duplication
   • Only when it improves readability/maintainability
   • Avoid over-engineering or premature abstraction
   • Remove duplicated code immediately after extraction
   • Commit the extraction

After EACH extraction:

• Run tests automatically
• If tests fail, revert the change immediately
• If tests pass and using IDE refactoring tool, commit: . r <description>
• If tests pass but manual refactoring, commit: ^ r <description>
• Remove the now-duplicated code in the same commit

Output

• If no duplication found, report "No duplication found"
• Otherwise provide brief summary at end (e.g., "Extracted 4 methods, removed 3 duplicated blocks")

Commit Format

Use Arlo's Commit Notation (ACN):

• . r extract saveToDatabase method - IDE refactoring or provably safe
• ^ r extract validation logic - Manual refactoring validated by tests