---

name: grey-haven-tdd-typescript description: "TypeScript/JavaScript Test-Driven Development with Vitest, strict red-green-refactor methodology, React component testing, and comprehensive coverage patterns. Use when implementing TypeScript features with TDD, writing Vitest tests, testing React components, developing with test-first approach, or when user mentions 'TypeScript TDD', 'Vitest', 'React testing', 'JavaScript TDD', 'red-green-refactor', 'TypeScript unit tests', or 'test-driven TypeScript'."

v2.0.43: Skills to auto-load for subagents spawned from this skill

skills:

• grey-haven-code-style
• grey-haven-test-generation

v2.0.74: Restrict tools available when this skill is active

allowed-tools:

• Read
• Write
• MultiEdit
• Bash
• Grep
• Glob
• TodoWrite

---

TDD TypeScript Skill

Expert TypeScript/JavaScript TDD implementation using strict red-green-refactor methodology with Vitest testing framework.

Description

Implement features by writing failing tests first, minimal code to pass, then refactoring. Comprehensive TypeScript/React TDD patterns.

What's Included

• Examples: TDD cycles, React component TDD, utility function TDD
• Reference: Red-green-refactor patterns, Vitest best practices
• Templates: Test templates, implementation workflows

Use When

• Implementing TypeScript features with TDD
• React component development
• Ensuring high test coverage

Related Agents

• tdd-typescript-implementer

Skill Version: 1.0