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test-driven-development

Enforce a test-first workflow by writing failing tests before code.

5|2|Updated Jul 10, 2025
Search Tags:#tdd#refactoring#agile#quality#red-green-refactor#unit-testing#test-driven-development
One-click install
npx skills add https://github.com/dot-do/workers --skill test-driven-development-dot-do
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/dot-do/workers/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/dot-do/workers --skill test-driven-development-dot-do

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Writing code without tests risks bugs and unclear requirements. Test-driven development (TDD) prescribes writing tests before production code to clarify intent and catch regressions early.

Core Features & Use Cases

  • Red-Green-Refactor: write a failing test, implement minimal code to pass, then clean up.
  • Better design through tests: tests guide API surface and drive modular, decoupled code.
  • Safety for refactors: regression safety nets make large changes less risky in ongoing projects.

Quick Start

Write a failing test for the desired behavior, then implement the minimal production code to 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 cycle work?▼

Test-driven development is a test-first workflow where you write a failing test, implement minimal code to pass it, then refactor for clarity and safety to prevent regressions.

How do I use unit testing to prevent regressions during refactoring?▼

Use unit testing to write a failing test for the desired behavior, implement minimal production code to pass, and refactor safely knowing your tests catch regressions.

Can I apply TDD to bug fixes and agile feature development?▼

Yes, TDD applies to feature development, bug fixes, and refactoring across software projects by enforcing a test-first workflow to validate behavior before coding.

Does writing tests before production code improve software design?▼

Writing tests before production code improves software design by guiding the API surface and driving modular, decoupled code through a fail-first testing approach.

What's the best way to start test-driven development on an ongoing project?▼

The best way to start test-driven development is writing a failing test for the desired behavior, then implementing the minimal production code required to pass it.

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