Does it handle mocking for external services?

Yes, it includes standardized patterns for mocking common external dependencies such as Supabase, Redis, and OpenAI to ensure tests remain isolated and fast.

What is the required coverage threshold?

The skill is configured to target a minimum of 80% code coverage across branches, functions, lines, and statements to ensure high software reliability.

Which testing frameworks does it support?

The skill provides implementation patterns and best practices for Jest, Vitest, and Playwright, covering unit, integration, and end-to-end testing.

Is this skill suitable for bug fixing?

Yes, it is highly effective for bug fixing by first creating a reproduction test case that fails, and then implementing the fix to make the test pass.

What is the TDD Workflow skill?

It is a specialized capability for Claude Code that enforces a test-driven development cycle, requiring developers to write failing tests before writing implementation code.

Test-Driven Development (TDD) Workflow

Name: Test-Driven Development (TDD) Workflow
Author: xu-xiang

byxu-xiang

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Security & Testing

Enforces a rigorous test-driven development cycle to ensure 80%+ code coverage across unit, integration, and end-to-end tests.

The TDD Workflow skill transforms Claude into a quality-first development assistant by mandating a strict 'test-before-code' approach. It guides developers through a structured seven-step process—from defining user journeys and writing failing tests to implementation, refactoring, and coverage verification. By integrating best practices for frameworks like Jest, Vitest, and Playwright, it helps engineering teams maintain high-quality codebases, catch bugs early, and ensure critical paths are always verified through automated testing and CI/CD-ready patterns.

Key Features

01Automated mocking templates for external services like Supabase and Redis

0261 GitHub stars

03Mandatory 80%+ coverage threshold for all code changes

04Comprehensive patterns for Unit, Integration, and E2E testing

05Integrated coverage reporting and CI/CD workflow optimization

06Strict Red-Green-Refactor cycle enforcement

Use Cases

01Developing robust API integrations with comprehensive error path testing

02Building new features with a 'safety-first' architecture

03Refactoring legacy code while preventing regressions

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add xu-xiang/everything-claude-code-zh tdd-workflow

For use in Claude.ai and ChatGPT

Download Skill