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

The Iron Law dictates that no production code should be written until a test has been created and observed to fail for the correct reason.

Why is TDD important when coding with Claude?

TDD prevents the AI from generating unverified logic, ensuring every line of code serves a proven requirement and reducing the risk of hallucinations.

Does this skill support specific testing frameworks?

It is framework-agnostic and provides implementation patterns compatible with Jest, Vitest, Pytest, and other common test runners.

What happens if a test passes immediately?

An immediate pass means you are either testing existing behavior or the test is flawed. You must fix the test to ensure it correctly identifies the missing feature.

Can I use this for existing codebases without tests?

Yes, it is highly recommended for adding new features or fixing bugs in any project by first defining the desired behavior through new tests.

Test-Driven Development (TDD)

Name: Test-Driven Development (TDD)
Author: claudiodearaujo

byclaudiodearaujo

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安全与测试

Enforces a strict Red-Green-Refactor workflow to ensure code quality and reliability through test-first implementation.

This skill implements a rigorous Test-Driven Development (TDD) methodology within Claude Code, ensuring that no production code is written without a corresponding failing test. By following the 'Iron Law' of TDD, it guides developers through the Red-Green-Refactor cycle, helping to eliminate technical debt, prevent regressions, and ensure that software behavior is clearly defined and verified before implementation. It is an essential tool for building robust new features, resolving bugs systematically, and performing safe refactoring in complex codebases.

主要功能

01Refactoring safety nets to maintain existing functionality

02Detailed guidance on writing minimal, behavior-focused tests

031 GitHub stars

04Strict Red-Green-Refactor workflow enforcement

05The Iron Law logic to prevent unverified production code

06Automated verification checklists for bug fixes and features

使用场景

01Safe refactoring of legacy code by establishing behavioral coverage

02Building robust new features with built-in regression testing

03Systematically fixing bugs by reproducing them with failing tests first

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add claudiodearaujo/sistema-de-narra-o-de-livro test-driven-development

For use in Claude.ai and ChatGPT

Download Skill