How do I start a new TDD session with Claude?

You can initiate the process by typing '/tdd' followed by the name of the function or feature you want to build, such as '/tdd calculateTotal' or '/tdd user-login'.

What are the FIRST principles in testing?

FIRST stands for Fast, Independent, Repeatable, Self-validating, and Timely. These principles ensure that your test suite remains a helpful tool rather than a maintenance burden.

Which testing frameworks does TDD Assistant support?

The skill is designed to be flexible but comes with built-in support for bash commands related to npm scripts and Vitest, making it compatible with most modern JavaScript and TypeScript environments.

What is the Red-Green-Refactor cycle?

It is the core TDD process: first, write a failing test (Red); second, write the minimal code necessary to make the test pass (Green); and third, optimize the code structure without changing its behavior (Refactor).

TDD Assistant

Name: TDD Assistant
Author: AsiaOstrich

byAsiaOstrich

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セキュリティとテスト

Guides developers through the Test-Driven Development lifecycle using the Red-Green-Refactor methodology.

The TDD Assistant skill integrates the rigorous Test-Driven Development (TDD) workflow directly into Claude Code. By automating the 'Red-Green-Refactor' cycle, this skill helps developers prioritize software quality and test coverage before writing production code. It enforces the AAA (Arrange-Act-Assert) pattern and adheres to the FIRST principles (Fast, Independent, Repeatable, Self-validating, Timely), ensuring that unit tests remain reliable and maintainable. Whether you are building new features or refactoring legacy logic, this skill provides the structured guidance needed to maintain code stability and reduce technical debt.

主な機能

0140 GitHub stars

02Bilingual support for English and Traditional Chinese workflows

03Interactive Red-Green-Refactor workflow guidance

04Automated test execution using npm or Vitest commands

05Enforcement of AAA (Arrange-Act-Assert) testing patterns

06Adherence to FIRST principles for high-quality unit tests

ユースケース

01Fixing software bugs by first creating a reproducing failing test case.

02Developing complex business logic functions from scratch using a test-first approach.

03Safely refactoring existing code by maintaining a continuous test feedback loop.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add asiaostrich/universal-dev-standards tdd-assistant

For use in Claude.ai and ChatGPT

Download Skill