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Tdd

Checked
mattpocock·vlatest·testing·MIT

Tdd helps you rapidly generate test code for your functions, boosting development speed and ensuring better code coverage.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add mattpocock/skills --skill tdd -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

mattpocock

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned mattpocock/skills at 5beb35b040.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
5beb35b040
Manifest
skills/engineering/tdd/SKILL.md
Scanned
4 files, 169 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

The TDD (Test-Driven Development) skill enables AI agents to write tests before implementing code, ensuring that software is built with reliability and correctness in mind. It supports creating unit tests, writing clean code that meets test requirements, and iterating through the development process with feedback from automated testing.

When to use it

  • You're developing a new feature and want to ensure it works as expected from the start.
  • You need to refactor existing code and want to prevent regressions.
  • Your team follows agile practices and wants to maintain high-quality, testable code.
  • You are working on a complex system where early detection of bugs is critical.

Key capabilities

  • Writing unit tests before implementing functionality
  • Generating clean, maintainable code that passes tests
  • Supporting iterative development with feedback loops

Example prompts

  • "Write a unit test for a function that calculates the sum of two numbers."
  • "Implement a feature to validate user input using TDD principles."
  • "Refactor this method while maintaining all existing test cases."

Tips & gotchas

  • Ensure your testing framework is set up correctly before using this skill.
  • While TDD improves code quality, it requires discipline and may take time to master.