Enforce red-green-refactor discipline in Claude Code sessions with TDD Guard

Block implementation-first agent behavior and keep Claude Code anchored to failing-tests-first TDD loops.

Prerequisites

Claude Code, Node.js 22+, supported test framework

Installation

Requirements and caveats from upstream:

• Node.js 22+
• Python/pytest support: @Durafen

Basic usage or getting-started notes:

• A supported test framework (Vitest, Jest, Storybook, pytest, PHPUnit, Go, Rust, RSpec, Minitest)

• Open Claude Code in your project and run:

• /plugin marketplace add nizos/tdd-guard

• Source: https://github.com/nizos/tdd-guard

• Extracted from upstream docs: https://raw.githubusercontent.com/nizos/tdd-guard/HEAD/README.md

Documentation

• https://github.com/nizos/tdd-guard#readme

Source

• Agent Skill Exchange