Can I use this for UI and CSS work?

The skill actually advises when to exit the TDD cycle, such as for visual layout and CSS, suggesting visual regression tools instead of traditional TDD to reduce friction.

Does it support modern frameworks like Next.js and NestJS?

Yes, it includes specific patterns for Next.js server components, API routes, and NestJS dependency injection, ensuring you use the right testing tools for each environment.

How does this skill enforce the TDD cycle?

The skill uses data validation checkpoints to verify that a failing test exists before implementation begins, ensures only minimal code is written to pass, and confirms tests still pass after refactoring.

What is the Test Double Decision Tree?

It is a logic-based guide within the skill that helps you choose the lightest possible test double (Stub, Spy, Fake, or Mock) to prevent brittle tests that break during internal refactoring.

TDD Workflow Pro

Name: TDD Workflow Pro
Author: hjemmesidekongen

byhjemmesidekongen

0•

Security & Testing

Enforces the red-green-refactor cycle and provides framework-specific testing strategies to ensure high-quality, testable code.

The TDD Workflow skill transforms Claude into a rigorous test-driven development partner, enforcing the discipline of writing failing tests before implementation. It guides developers through the red-green-refactor cycle with automated checkpoints while providing expert advice on complex testing scenarios, such as mocking strategies, property-based testing, and framework-specific patterns for React, Next.js, and NestJS. This skill is essential for developers looking to eliminate speculative features, reduce technical debt, and maintain a robust, regression-proof codebase.

Key Features

01Framework-specific guidance for React, Next.js, NestJS, and Prisma testing

02Automated red-green-refactor cycle enforcement with data validation checkpoints

03Contextual heuristics for when to skip TDD, such as during spikes or UI layout

040 GitHub stars

05Property-based testing patterns using fast-check for invariant validation

06Test double decision tree for choosing between stubs, spies, fakes, and mocks

Use Cases

01Building mission-critical business logic where high test coverage and regression safety are required

02Establishing standardized TDD discipline across a development team using AI guidance

03Refactoring complex legacy modules by enforcing a 'test-first' approach to changes

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hjemmesidekongen/ai tdd-workflow

For use in Claude.ai and ChatGPT