Is the strict mode mandatory?

No. You can choose between Strict mode (blocks code writing without tests), Standard mode (asks for confirmation), and Relaxed mode (provides suggestions only).

How do I configure the test commands?

You can define your test commands and file patterns in a .claude/tdd-dev.local.md file within your project for custom environments.

What does the TDD Methodology skill do?

It acts as a coach and guardrail within Claude Code, ensuring you follow the Test-Driven Development practice of writing a failing test before any functional code.

Can I use it with any testing framework?

Yes. While it has optimized patterns for Jest, Vitest, and Pytest, it features a generic fallback that can detect and run test commands for any language or framework.

TDD Methodology

Name: TDD Methodology
Author: hculap

byhculap

0•

Security & Testing

Enforces a strict Red-Green-Refactor cycle to ensure code quality through test-driven development within Claude Code.

TDD Methodology is a specialized Claude Code skill designed to transform AI coding behavior into a disciplined test-driven workflow. By enforcing the core philosophy that no production code should be written without a failing test, it ensures every behavior change is validated, promoting better software design and higher code reliability. The skill features configurable strictness modes, intelligent source-vs-test file detection, and deep integration with popular frameworks like Jest, Vitest, and Pytest, making it an essential tool for developers committed to writing robust, maintainable code.

Key Features

01Automated framework detection for Jest, Vitest, and Pytest

02Strict Red-Green-Refactor cycle enforcement

03Customizable iteration limits to prevent endless loops

04Configurable strictness levels (Strict, Standard, Relaxed)

05Intelligent source vs. test file pattern matching

060 GitHub stars

Use Cases

01Applying bug fixes by writing failing regression tests first

02Executing safe code refactoring with automated validation

03Building new features with 100% test coverage from the start

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hculap/better-code tdd-methodology

For use in Claude.ai and ChatGPT

Download Skill