Practical, non-affiliate guides for using Codex effectively: planning tasks, working with repositories, reviewing changes, testing, and building repeatable workflows.
The official overview of Codex: a coding agent for building features, refactoring, testing, and code review across ChatGPT, editors, and terminal workflows.
Codex | AI Coding Partner from OpenAI
A practical learning hub with Codex prompting, app, editor, code-review, and workflow resources from OpenAI Developers.
Codex | OpenAI Developers
Official setup and usage guidance for Codex CLI, including installation, local workflows, multimodal input, and approval modes.
Codex CLI | ChatGPT Learn
The public source repository for Codex CLI—useful for understanding releases, issues, contributions, and the project structure.
GitHub
A current guide to using OpenAI models and Codex for writing, reviewing, editing, and debugging code.
Code generation | OpenAI API
Codex-focused cookbook recipes for automating developer workflows, prompting, modernization, and iterative repair.
Codex • Cookbook
OpenAI engineering stories and practical examples about code review, skills, long-running tasks, and shipping with Codex.
Codex blog posts | OpenAI Developers
A useful companion for agent workflows: context, tools, guardrails, orchestration, and evaluation patterns that pair well with Codex projects.
Agents | OpenAI Developers
Official setup and usage guidance for Codex CLI, including installation, local workflows, multimodal input, and approval modes.
Codex CLI | ChatGPT Learn
A code-first guide for building agent workflows with tools, handoffs, guardrails, and evaluation patterns.
Agents SDK | OpenAI API
A practical reference for extending agent workflows with web search, file search, functions, MCP, and other tools.
Using tools | OpenAI API
A useful guide for understanding the Responses API when building newer agentic coding integrations.
Migrate to the Responses API | OpenAI API
A concise explanation of how reusable skills package instructions and resources into repeatable Codex workflows.
Skills – Plugins | OpenAI Developers
A practical starting point for the official OpenAI SDKs used in API and agent integrations.
SDKs and CLI | OpenAI API
A concise help-center guide to how Work and Codex fit together in ChatGPT and when to use each workflow.
ChatGPT Work and Codex | OpenAI Help Center
A practical reference for Codex CLI commands and repeatable terminal workflows.
OpenAI Codex Commands
A clear reference for configuring Codex behavior, approvals, permissions, and developer preferences.
OpenAI Codex Settings
A guide to connecting Codex with MCP servers so workflows can use external tools and documentation safely.
Model Context Protocol | ChatGPT Learn
A starting point for building Codex-powered workflows and integrating the coding agent into developer tooling.
Codex SDK | ChatGPT Learn
A focused guide to using Codex for consistent code review, feedback, and repository-quality workflows.
