testing-tdd

Automate test-driven development workflows with failing-test-first feedback loops.

7|Updated Feb 14, 2026

Search Tags:#testing #tdd #red-green-refactor #quality-assurance #software-engineering #design-feedback

Ready to run

npx skills add https://github.com/KentoShimizu/sw-agent-skills --skill testing-tdd-kentoshimizu

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: testing-tdd
Source: https://github.com/KentoShimizu/sw-agent-skills/tree/main/skills/testing-tdd
Command: npx skills add https://github.com/KentoShimizu/sw-agent-skills --skill testing-tdd-kentoshimizu

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Drives teams to evolve software through fast red-green-refactor cycles by anchoring changes to failing tests that guide design, reducing drift and risk.

Core Features & Use Cases

Red-green-refactor workflow to produce small, verifiable design adjustments.
Explicit design feedback loops that surface trade-offs and risks early.
Use Case: when shaping APIs and modules incrementally with test-first discipline.

Quick Start

Start by writing a failing test for the smallest next behavior, then implement the minimal change to pass.

Frequently Asked Questions about testing-tdd

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

FAQPage Schema

How do I implement a red-green-refactor workflow for API evolution?▼

A red-green-refactor workflow for API evolution anchors changes to failing tests first, implements minimal code to pass, then refactors safely. This drives incremental design adjustments with explicit feedback loops and risk documentation.

What is test-driven development and how does it guide software design?▼

Test-driven development (TDD) is a software engineering discipline where failing tests dictate the smallest next behavior. It guides design by producing small, verifiable, auditable cycle steps that surface trade-offs and reduce drift.

How do I start a TDD cycle when shaping modules incrementally?▼

To start a TDD cycle for module shaping, write a failing test for the smallest next behavior, then implement the minimal change required to pass it. This ensures fast, safe cycles with clear design feedback.

Can I use test-first development for refactoring existing software safely?▼

Yes, test-first development applies to refactoring by requiring explicit failing tests before changes. This ensures small, auditable cycle steps and clear risk documentation, guaranteeing safe design evolution without drift.

Does TDD workflow automation require external testing dependencies?▼

TDD workflow automation requires no external dependencies to guide the process. It operates by enforcing failing-test-first feedback loops and small cycle steps directly within your software engineering environment.

Why does test-driven development require failing tests first?▼

Test-driven development requires failing tests first to establish explicit feedback loops. This anchors incremental design changes, surfaces trade-offs early, and ensures modifications are verifiable and auditable to reduce risk.