Home / Skills / Matt Pocock's skills / tdd
tdd
Part of Matt Pocock's skills by Matt Pocock · MIT
Builds a feature or fix in thin slices. Before each piece of code it writes a small automatic check that fails, then makes it pass. Use it when you want every change checked.
Read the skill itself: skills/engineering/tdd/SKILL.md
Install it
tdd comes with the rest of Matt Pocock's skills.
The commands below are for AI coding tools like Claude Code, which work with files on your computer. They won't do anything typed into a ChatGPT or Claude chat in your browser. Don't have a coding tool yet? Install Claude Code first.
Use the box for the tool you have, and copy its commands. Lines that start with / go in the tool's chat box. Other lines go in Terminal, the app where you type commands to your computer. A plugin is a bundle of skills made for one tool, and a marketplace is the list the tool installs it from.
Copied from the pack's own install instructions.
claude plugin install mattpocock-skills@codex plugin marketplace add mattpocock/npx skills@More from Matt Pocock's skills
- grill-meThe agent interviews you, one question at a time, until every branch of a plan is settled. Use it before you build anything, or for a decision that isn't about code.
- grill-with-docsThe same interview, but it writes down a glossary of your project's words and the decisions you made, so later sessions use the same words. Use it on a real project.
- diagnosing-bugsA step-by-step routine for a bug: make it happen on purpose, narrow it down, test a guess, fix it, and add a check so it stays fixed.