BuildMIT

TDD

by Matt Pocock (opens in a new tab) mattpocock/skills

A red-green loop with firm rules on what makes a test worth keeping.

Installation

Skills CLI

Skills CLI command
npx skills@latest add mattpocock/skills --skill tdd

Requires Node.js and npm. Choose your agents in the installer; add -g for a global installation.

Fieldbook review

Reviewed 27 Sept 2026

Agrees the seams under test with you before writing any test, which keeps effort on the paths that matter.

  • LicenceMIT
  • FrontmatterValid name and description
  • Risky patternsNone found
  • Size39 lines
  • Last checked27 Sept 2026 · cb01f66bebfaa25fa1f88e6b7e769cd9fd9f35b1120b8563749820738814c927

What it can touch

  • Edits code

    Changes files in your project.

  • Runs commands

    Runs shell commands such as tests, builds or installs.

Read the source

Fieldbook links to the original instead of copying it, so you always read the version you install.

skills/engineering/tdd/SKILL.md on GitHub (opens in a new tab)