/tdd

Implement a feature or fix using test-driven development (Red-Green-Refactor)

# Test-Driven Development

Implement the requested feature using strict TDD methodology.

## The Cycle



1. RED — write a failing test that defines the expected behavior
2. GREEN — write minimal code to make the test pass
3. REFACTOR — clean up while keeping tests green

## Rules

- Never write production code without a failing test first
- Each cycle should take 5-15 minutes
- Commit at each green state
- Tests are first-class code — no shortcuts

## Task to Implement

$ARGUMENTS

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Load the tdd skill and begin by:
1. Clarifying the requirements (what behavior needs to be implemented?)...