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Test-driven development (TDD) v1.0.0

Use this resource to build a feature or a fix by writing the test first

New

  • 356 downloads
  • 146 likes
  • 126 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install red-green-refactor-tdd-2

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent writes a failing test, confirms the failure, adds the minimum code to make it pass, then refactors without breaking the tests. You get code covered by tests whose failure was observed, and a clear rule for exceptions.

Mostly picked by

Updated November 2, 2026

Card for the “Test-driven development (TDD)” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: red, green, refactor cycle and what makes a good test
  • testing-anti-patterns.md: pitfalls to avoid with mocks

Good fit for

  • You are fixing a bug and want a regression test
  • You are adding a business rule to an existing module

Not for

    Tags

    • tdd
    • tests
    • red green
    • development

    About

    You say

    “Fix the VAT calculation with TDD: first write the test for the reduced-rate case.”

    Card for the “Test-driven development (TDD)” skill

    Skill published by practicalswan under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to build a feature or a fix by writing the test first
    3. Review and adjust the result

    Content preview

    Files

    • CHANGELOG.md5.5 KB
    • LICENSE1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md12.3 KB
    • testing-anti-patterns.md8.3 KB

    Origin and licence

    Listed unmodified

    Author
    practicalswan
    Source
    github.com/practicalswan/agent-skills/tree/6cf63517700aa9ba0b80e711a93837e3bea13d0a/test-driven-development
    Licence
    MIT

    Notice

    « test-driven-development » (practicalswan, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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