Test-Driven Development (TDD)

Comprehensive TDD patterns and practices for all programming languages. This skill eliminates ~500-800 lines of redundant testing guidance per agent.

When to Use

Apply TDD for:

• New feature implementation
• Bug fixes (test the bug first)
• Code refactoring (tests ensure behavior preservation)
• API development (test contracts)
• Complex business logic

TDD Workflow (Red-Green-Refactor)