apm install @galando/test-driven-development[](https://apm-p1ls2dz87-atlamors-projects.vercel.app/packages/@galando/test-driven-development)---
description: Enforces TDD RED-GREEN-REFACTOR cycle
triggers:
- file_pattern: "*.java;*.ts;*.tsx;*.js;*.py;*.go"
---
# TDD Skill
**RED:** Write failing test FIRST
**GREEN:** Minimal code to pass
**REFACTOR:** Improve while green
❌ Code before tests → DELETE
**For complete TDD methodology:** Read `${CLAUDE_PLUGIN_ROOT}/.claude-plugin/reference/skills-full/test-driven-development-full.md`