# Test Driven Development

> TDD methodology with red-green-refactor cycles

- Skill: `ffsshhttiikk/test-driven-development` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ffsshhttiikk/test-driven-development`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ffsshhttiikk/test-driven-development/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: ffsshhttiikk (https://skillmd.com/u/ffsshhttiikk)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ffsshhttiikk/test-driven-development

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## What I do
- Write tests first
- Follow red-green-refactor
- Design testable code
- Use mocks/stubs

## When to use me
When building testable software.