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test-driven-development

Enforce test-first development with a red-green-refactor workflow.

Updated Mar 26, 2026

Search Tags:#tdd #red-green-refactor #quality-assurance #test-first #development-process #test-driven-development #software-testing

Ready to run

npx skills add https://github.com/jaydubya818/New_baseline --skill test-driven-development-jaydubya818

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/jaydubya818/New_baseline/tree/main/skills/superpowers/test-driven-development
Command: npx skills add https://github.com/jaydubya818/New_baseline --skill test-driven-development-jaydubya818

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Write tests before code to guarantee correct behavior and prevent regressions, transforming development into a disciplined, observable process.

Core Features & Use Cases

Red-Green-Refactor workflow guiding code changes with tests at every step
Fail-fast verification that ensures real failures are caught early
Minimal implementation: only add production code to satisfy tests, then refactor

Quick Start

Start by writing a failing test for the upcoming feature, then implement the minimal code to pass that test, and repeat until all tests pass.

Frequently Asked Questions about test-driven-development

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

What is test-driven development and how does the red-green-refactor workflow work?▼

Test-driven development is a test-first process where you write a failing test, implement minimal code to pass it, then refactor. This red-green-refactor workflow validates software behavior and prevents regressions incrementally.

How do I start writing tests before code for a new feature?▼

To start test-first development, write a failing test for the upcoming feature, implement the minimal production code required to make that test pass, and repeat the cycle until all tests pass and behavior is verified.

Can I use test-driven development for bug fixes and refactoring in large codebases?▼

Yes, test-driven development is applicable to bug fixes, refactoring, and behavior changes across small to large codebases, enforcing fail-fast verification and continuous validation in collaborative software projects.

Why should I write failing tests first instead of writing tests after implementation?▼

Writing failing tests first ensures real failures are caught early and guarantees correct behavior before implementation. This fail-fast discipline transforms development into an observable process and prevents future regressions.

Does test-first development require adding only minimal code to pass tests?▼

Yes, the minimal implementation principle requires adding only the production code needed to satisfy the current failing test, then refactoring. This incremental approach maintains continuous verification and disciplined code changes.