Can I write the code first and the test later with this skill?

No, this skill enforces the 'Iron Law' of TDD: no production code is allowed without a failing test first. Writing tests after the code is considered a violation of the process.

What should I do if my test passes immediately?

If a test passes before you write implementation code, you are likely testing existing behavior or have a flaw in the test logic. You must fix the test so that it fails for the right reason before proceeding.

Are there any exceptions to using TDD with this skill?

Exceptions are rare but may include throwaway prototypes, generated code, or configuration files, and typically require confirmation from the human partner.

How does this skill handle bug fixes?

For bug fixes, the skill requires you to write a test that reproduces the bug (Red phase), verify it fails, and then write the minimal code to fix it (Green phase).

Test-Driven Development (TDD)

Name: Test-Driven Development (TDD)
Author: himmelreich-it

byhimmelreich-it

0•

安全与测试

Enforces a strict Red-Green-Refactor workflow to ensure all production code is verified by failing tests before implementation.

The Test-Driven Development (TDD) skill mandates a rigorous test-first methodology for all feature implementations and bug fixes within Claude Code. By requiring a failing test before any production code is written, it ensures that every line of code is purposeful, documented by behavior, and resilient to regressions. The skill guides the AI through the complete TDD cycle—writing a minimal failing test, implementing the simplest code to pass, and refactoring for quality—while strictly forbidding the common pitfall of writing tests after implementation.

主要功能

01Mandatory verification of failing tests (Red phase)

02Minimalist code implementation guidance (Green phase)

03Comprehensive verification checklists for bug fixes and features

04Safe refactoring patterns while maintaining passing states

050 GitHub stars

06Strict Red-Green-Refactor cycle enforcement

使用场景

01Reproducing and fixing bugs by writing failing regression tests

02Safe refactoring of complex logic without altering external behavior

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

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add himmelreich-it/agent-skill-converter test-driven-development

For use in Claude.ai and ChatGPT

主要功能

01Mandatory verification of failing tests (Red phase)

02Minimalist code implementation guidance (Green phase)

03Comprehensive verification checklists for bug fixes and features

04Safe refactoring patterns while maintaining passing states

050 GitHub stars

06Strict Red-Green-Refactor cycle enforcement

使用场景

01Reproducing and fixing bugs by writing failing regression tests

02Safe refactoring of complex logic without altering external behavior

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

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add himmelreich-it/agent-skill-converter test-driven-development

For use in Claude.ai and ChatGPT