ChatGPT Learn Docs
Developers
Use Codex with codebases, development environments, automation, and your team's tools.
Explore workflowsCodex supports everyday code work and deeper integrations across local and cloud environments. Its developer workflows span code review, the integrated terminal, reusable skills and plugins, automation with the SDK and App Server, team tools, and reference material for each surface.
Development workflows
Review changes and work with development tools in ChatGPT.
Extend and automate
Package development workflows and run deterministic automation.
- Build skills Package instructions and resources for repeatable tasks in ChatGPT and Codex.
- Build plugins Package skills and MCP servers for ChatGPT and Codex.
- Site tools (WebMCP) Use WebMCP to give AI agents a direct way to work with your website.
- Hooks Run custom commands when Codex emits lifecycle events.