# Tdd

> Test-driven development with red-green-refactor loop. Use when user wants to build features or fix bugs using TDD, mentions "red-green-refactor", wants integration tests, or asks for test-first development.

- Skill: `atman-33/tdd` (Agent Skill, multi-file: 6 files)
- Install (CLI): `npx skillmds@latest add atman-33/tdd`
- Raw SKILL.md: https://api.skillmd.com/api/skills/atman-33/tdd/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: atman-33 (https://skillmd.com/u/atman-33)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/atman-33/tdd

---


# Test-Driven Development

This file is a compatibility entrypoint.

Use the canonical opencode skill at `.opencode/skills/tdd/SKILL.md`.

When the workflow needs bundled references or templates, use the files under `.opencode/skills/tdd/`.

Do not treat `.github/skills/tdd/` as the source of truth.