test-driven-development — Skills

What it does

Implementing any new logic or behavior

Fixing any bug (the Prove-It Pattern)

Modifying existing functionality

Adding edge case handling

Any change that could break existing behavior

Language and build system — package.json, pom.xml/build.gradle, pyproject.toml, go.mod, Cargo.toml, Gemfile, a Makefile

Checked-in wrappers — prefer ./gradlew, ./mvnw, make test, or a repo script over globally installed tools

Drives development with tests. 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.

Source

Repository: https://github.com/addyosmani/agent-skills

test-driven-development FAQ

What does the test-driven-development skill do?

How do I install test-driven-development?

Run: npx -y skills add https://github.com/addyosmani/agent-skills --skill test-driven-development --agent claude-code — the source lives at github.com/addyosmani/agent-skills.

Maintain test-driven-development?

Let people know it's listed here — add the badge (live metrics, light/dark aware) or a plain link to your README or docs.

[![test-driven-development on getagentictools](https://getagentictools.com/badge/skills/addyosmani-agent-skills-test-driven-development.svg)](https://getagentictools.com/skills/addyosmani-agent-skills-test-driven-development?ref=badge)

npx agentictools info skills/addyosmani-agent-skills-test-driven-development

The second line is the CLI lookup for this page — handy in READMEs and docs.