TDD Workflow

When to Use

Activate this skill when:

• The user explicitly requests TDD, test-first, or red-green-refactor
• Implementing new functions, methods, endpoints, or components where test-first is valuable
• Fixing bugs where a regression test should be written first
• The user says "write the test first", "TDD this", or "red-green-refactor"

Do NOT use this skill for:

• Configuration files, environment setup, or static content
• One-line fixes or trivial changes
• Exploratory prototyping or proof-of-concept code
• Code that cannot be meaningfully tested in isolation
• Testing pattern details (use pytest-patterns or react-testing-patterns for HOW to write tests)

Instructions