name: tdd-playbook description: Guides strict TDD (red/green/refactor), prioritizing domain unit tests and small steps. allowed-tools: Read, Edit, Grep, Glob

TDD Playbook (training)

• One failing test at a time.
• Minimal code to pass.
• Refactor only with green tests.
• Prefer domain tests over UI tests. If stuck: restate smallest invariant and propose the next tiny test.