Can I skip TDD for simple features?

The skill advises against skipping TDD for 'simple' code, as simple code can still break. It maintains that TDD is faster than debugging in production.

How does this skill handle bug fixes?

It requires writing a test that specifically reproduces the reported bug (Red), then implementing the fix (Green), and finally cleaning up the code (Refactor).

Does this skill work with any testing framework?

Yes, it is designed as a methodology guide that can be applied to any environment, including TypeScript with Jest, Python with Pytest, or other standard frameworks.

What is the 'Iron Law' of this TDD skill?

The Iron Law dictates that no production code should be written unless there is a failing test first. If code is written before the test, it must be deleted and restarted.

Why is 'Verify RED' a mandatory step?

Verifying the failure ensures that the test actually tests the intended behavior and doesn't pass accidentally due to existing logic or incorrect test configuration.

Test-Driven Development (TDD) Mastery

Name: Test-Driven Development (TDD) Mastery
Author: clsandoval

byclsandoval

0•

보안 및 테스팅

Enforces a strict Red-Green-Refactor cycle to ensure code reliability and eliminate technical debt through test-first implementation.

This skill provides an uncompromising framework for Test-Driven Development (TDD) within Claude Code, centered around the 'Iron Law' that no production code is written without a failing test first. It guides developers through the mandatory stages of writing a minimal failing test (RED), implementing the simplest code to pass (GREEN), and refining the solution (REFACTOR). By preventing common rationalizations like 'testing after' or 'manual verification,' this skill ensures that every line of code is purposeful, documented by behavior, and highly maintainable, making it an essential tool for mission-critical features and complex bug fixes.

주요 기능

010 GitHub stars

02Comprehensive verification checklists for bug fixes and new features

03Strict Red-Green-Refactor cycle enforcement and verification

04Mandatory failure verification to ensure tests are valid

05Guidance on writing minimal, behavior-focused tests over implementation mocks

06Uncompromising 'Delete and Restart' guidance for untested production code

사용 사례

01Reproducing and fixing bugs by establishing a failing test case first

02Safely refactoring complex legacy code by maintaining a green test state

03Implementing new features with high reliability and zero-regression requirements

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add clsandoval/monorepo test-driven-development

For use in Claude.ai and ChatGPT

주요 기능

010 GitHub stars

02Comprehensive verification checklists for bug fixes and new features

03Strict Red-Green-Refactor cycle enforcement and verification

04Mandatory failure verification to ensure tests are valid

05Guidance on writing minimal, behavior-focused tests over implementation mocks

06Uncompromising 'Delete and Restart' guidance for untested production code

사용 사례

01Reproducing and fixing bugs by establishing a failing test case first

02Safely refactoring complex legacy code by maintaining a green test state

03Implementing new features with high reliability and zero-regression requirements