test-driven-development

name	test-driven-development
description	Use when building features with behavior that can be checked. Work in a small red-green-refactor loop instead of writing a large untested block.

Test Driven Development

Use this skill when the work benefits from small testable steps.

Workflow

1. Write or name the expected behavior first.
2. Start with a failing check.
3. Make the smallest change that passes it.
4. Clean up only after the check is green.
5. Repeat in small loops.

Guardrails

• Do not write a giant feature before the first check.
• Do not skip the failing step unless the project truly cannot test that behavior.