# test-first-guide

> Guides TDD Red-Green-Refactor cycle. Auto-invoked during implementation to ensure test-first discipline.

- Author: Aniket
- Repository: 0niket/atelier
- Version: 20260208144159
- Stars: 0
- Forks: 0
- Last Updated: 2026-02-08
- Source: https://github.com/0niket/atelier
- Web: https://mule.run/skillshub/@@0niket/atelier~test-first-guide:20260208144159

---

---
name: test-first-guide
description: Guides TDD Red-Green-Refactor cycle. Auto-invoked during implementation to ensure test-first discipline.
---

Guide Test-Driven Development cycles (Kent Beck principles).

## TDD Cycle Guidance

**Red Phase**:
- Suggest next test to write
- Reference spec acceptance criteria
- Ensure test fails before continuing

**Green Phase**:
- Suggest minimal implementation
- Apply TDD patterns (Fake It, Obvious Implementation)
- No premature optimization

**Refactor Phase**:
- Trigger when green achieved
- Suggest refactorings if smells detected
- Maintain green tests

Maintain test list, track coverage of acceptance criteria.