TDD

Red → Green → Refactor. No exceptions.

When to Use

• Bug fixes — prove the bug exists with a failing test before touching production code
• New features — define the behavior in tests before implementing
• Autopilot integration — autopilot can invoke this for each execution step

Phase 1: Understand

Read the code that needs to change. Before writing anything:

1. Find existing test files for the module. Match the project's test patterns:

   # Find test files near the target
   find . -path '*/node_modules' -prune -o -name '*.test.*' -print -o -name '*.spec.*' -print | head -20