How is the 80% coverage requirement enforced?

The workflow includes mandatory steps to run coverage reports and provides configuration templates for Jest to set global thresholds for branches, functions, and lines.

Does it support mocking external APIs and databases?

Yes, it includes pre-defined mock patterns for common services like Supabase, Redis, and OpenAI to keep your test suite fast and isolated.

Can I use this skill for bug fixing instead of new features?

Yes, the skill is specifically designed for fixing bugs by first writing a failing test that reproduces the issue, ensuring the fix is verified and preventing future regressions.

What testing frameworks does this TDD skill support?

The skill provides optimized patterns for Jest and Vitest for unit and integration testing, as well as Playwright for comprehensive end-to-end browser automation.

TDD Workflow

Name: TDD Workflow
Author: xu-xiang

byxu-xiang

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323

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Security & Testing

Enforces test-driven development principles to ensure high code quality and over 80% test coverage across unit, integration, and end-to-end tests.

This skill automates and guides the Test-Driven Development (TDD) cycle within Claude Code, ensuring that every feature, bug fix, or refactor starts with comprehensive test definitions. It provides standardized patterns for unit testing with Jest or Vitest, integration testing for API endpoints, and browser automation via Playwright, all while enforcing a strict 80% coverage threshold. By integrating this workflow, developers can build more resilient applications with a built-in safety net, making refactoring safer and deployments more reliable through automated verification of edge cases and user journeys.

Key Features

01Standardized mock patterns for Supabase, Redis, and OpenAI

02323 GitHub stars

03Automated Red-Green-Refactor lifecycle enforcement

04Strict 80% code coverage threshold validation

05Comprehensive patterns for Unit, Integration, and E2E testing

06Playwright integration for automated browser-based user flows

Use Cases

01Implementing robust API endpoints with validated request/response and error handling

02Refactoring legacy codebases while maintaining functional integrity through regression testing

03Developing new features with a test-first approach to ensure production readiness

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

Key Features

01Standardized mock patterns for Supabase, Redis, and OpenAI

02323 GitHub stars

03Automated Red-Green-Refactor lifecycle enforcement

04Strict 80% code coverage threshold validation

05Comprehensive patterns for Unit, Integration, and E2E testing

06Playwright integration for automated browser-based user flows

Use Cases

01Implementing robust API endpoints with validated request/response and error handling

02Refactoring legacy codebases while maintaining functional integrity through regression testing

03Developing new features with a test-first approach to ensure production readiness

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