productionos-tdd

Automate a Codex-first test-driven development workflow with red-green-refactor cycles.

8|Updated Mar 17, 2026

Search Tags:#workflow #tdd #development #codex #refactor #test-driven-development

Ready to run

npx skills add https://github.com/ShaheerKhawaja/ProductionOS --skill productionos-tdd

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: productionos-tdd
Source: https://github.com/ShaheerKhawaja/ProductionOS/tree/main/codex-skills/productionos-tdd
Command: npx skills add https://github.com/ShaheerKhawaja/ProductionOS --skill productionos-tdd

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Codex-enabled test-driven development workflow that enforces red-green-refactor discipline, ensuring tests drive design rather than implementation details.

Core Features & Use Cases

Enforces red-green-refactor and test-first development for Codex-driven workflows.
Writes a failing test first, then implements the minimal change and refactors safely.
Validates changes and updates test coverage to maintain quality across features.

Quick Start

Invoke the Codex TDD workflow on a target feature or file to begin red-green-refactor cycles.

Frequently Asked Questions about productionos-tdd

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I automate test-driven development with Codex?▼

Test-driven development with Codex is automated through a structured red-green-refactor loop that writes failing tests before any implementation, confirms the failure, applies minimal code changes, and refactors safely while updating coverage scopes.

What is the red-green-refactor loop in test-driven development?▼

The red-green-refactor loop is a test-driven development cycle that writes a failing test first, confirms the failure, implements minimal change to pass it, refactors safely, re-runs validation, and updates coverage to ensure tests drive design.

How do I start a TDD workflow for a specific feature or file?▼

You start a TDD workflow by invoking the Codex-first cycle on a target feature or file, which begins by writing a failing test, confirming the failure, and then implementing minimal changes to pass the test before refactoring.

Does Codex test-driven development support optional coverage scopes?▼

Yes, Codex test-driven development supports optional coverage scopes, allowing you to define coverage targets alongside specific features or files to validate changes and maintain quality throughout the red-green-refactor cycle.

Why write failing tests before implementation in test-driven development?▼

Writing failing tests before implementation ensures that tests drive design rather than implementation details, enforcing red-green-refactor discipline so that only minimal, validated code changes are made and safely refactored.

When should I not use a test-first development workflow?▼

A test-first development workflow may not suit rapid prototyping tasks, as it enforces strict red-green-refactor discipline by writing failing tests before implementation, adding structured validation overhead that may slow down exploratory feature development.