test-driven-development
test-driven-development is an agent skill published by addyosmani, listed under writing code. It lives in the addyosmani/agent-skills repository, which has 110,611 GitHub stars and is licensed under MIT; we last read it on 2026-10-14.
This tool drives development by implementing tests through the red-green-refactor loop. It is used for testing logic, fixing bugs, or modifying functionality to ensure code works correctly.
Install
skills is a generic installer for any repository of Claude agent skills -- it reads addyosmani/agent-skills’s own structure rather than assuming one, the same way this page reads the skill’s own SKILL.md rather than assuming a format.
npx skills add addyosmani/agent-skills
Maintenance
Drives development with tests using the red-green-refactor loop. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about to modify existing functionality. Use when asked to add tests to a function, fix a bug in it or change its behavior, even when the code is pasted inline and the request does not mention tests.
test-driven-development compared with similar skills
| Skill | Publisher | What it does | Repo stars | Last update |
|---|---|---|---|---|
| test-driven-development (this page) | addyosmani | Drives development with tests using the red-green-refactor loop. Use when implementing any logic, fixing any… | 110,611 | 2026-10-13 |
| web-artifacts-builder | anthropic | Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web tec… | 183,845 | 2026-10-09 |
| animate-expo | emilkowalski | Build animations in React Native and Expo, making the decisions in the order that determines whether they fee… | 49,715 | 2026-10-11 |
| cli-creator | openai | Build a composable CLI for Codex from API docs, an OpenAPI spec, existing curl examples, an SDK, a web app, a… | 28,310 | 2026-09-08 |
| google-ads-api-account-diagnostics | Diagnoses Google Ads account performance issues such as conversion loss (value or volume), low lead flow/volu… | 21,580 | 2026-10-25 | |
| google-cloud-waf-performance-optimization | Generates performance-focused guidance for Google Cloud workloads based on the design principles and recommen… | 21,580 | 2026-10-25 | |
| google-cloud-waf-reliability | Evaluates, designs, and improves the reliability, resilience, availability, fault tolerance, and disaster rec… | 21,580 | 2026-10-25 |
Skills from the same repository first, then others for this job by repository stars. Figures are from each repository when we last read it.
Common questions about test-driven-development
- What does test-driven-development do?
- This tool drives development by implementing tests through the red-green-refactor loop. It is used for testing logic, fixing bugs, or modifying functionality to ensure code works correctly.
- How do I install test-driven-development?
- Run npx skills add addyosmani/agent-skills. The skills installer reads the repository’s own structure, so it works for any repository of agent skills.
- Who publishes test-driven-development?
- addyosmani.
- Is test-driven-development maintained, and what licence does it use?
- Its repository has 110,611 GitHub stars and its state in our directory is listed. Its last commit we recorded was on 2026-10-13. The repository declares the MIT licence.
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