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--- url: "https://developers.openai.com/codex/cloud/code-review/" title: "Code Review" --- ## Search the docs ⌘K/CtrlK Close Clear Primary navigation Codex ResourcesCodexChatGPTBlog Clear - [Home](https://developers.openai.com/codex) - [Quickstart](https://developers.openai.com/codex/quickstart) - [Concepts](https://developers.openai.com/codex/concepts) - [Pricing](https://developers.openai.com/codex/pricing) - [Changelog](https://developers.openai.com/codex/changelog) ### Codex CLI - [Overview](https://developers.openai.com/codex/cli) - [Configuration](https://developers.openai.com/codex/local-config#cli) ### Codex IDE Extension - [Set up your IDE](https://developers.openai.com/codex/ide) - [Configuration](https://developers.openai.com/codex/local-config#ide) - [IDE → Cloud tasks](https://developers.openai.com/codex/ide/cloud-tasks) ### Codex Cloud - [Delegate to Codex](https://developers.openai.com/codex/cloud) - [Environments](https://developers.openai.com/codex/cloud/environments) - [Code Review](https://developers.openai.com/codex/cloud/code-review) - [Internet Access](https://developers.openai.com/codex/cloud/internet-access) ### Codex SDK - [Overview](https://developers.openai.com/codex/sdk) - [TypeScript](https://developers.openai.com/codex/sdk#typescript-library) - [GitHub Action](https://developers.openai.com/codex/sdk#github-action) ### Guides - [Agents SDK](https://developers.openai.com/codex/guides/agents-sdk) - [Prompting Codex](https://developers.openai.com/codex/prompting) - [Model Context Protocol (MCP)](https://developers.openai.com/codex/mcp) - [Autofix CI](https://developers.openai.com/codex/autofix-ci) - [Enterprise Admin](https://developers.openai.com/codex/enterprise) - [Security Admin](https://developers.openai.com/codex/security) - [Codex on Windows](https://developers.openai.com/codex/windows) ### Integrations - [Slack](https://developers.openai.com/codex/integrations/slack) ### Resources - [AGENTS.md](https://agents.md/) - [Codex on GitHub](https://github.com/openai/codex) Codex can review code directly in GitHub. This is great for finding bugs and improving code quality. ## Setup Before you can use Codex directly inside GitHub, you will need to make sure [Codex cloud](https://developers.openai.com/codex/cloud) is set up. Afterwards, you can go into the [Codex settings](https://chatgpt.com/codex/settings/code-review) and enable “Code review” on your repository.  ## Usage After you have enabled Code review on your repository, you can start using it by tagging `@codex` in a comment on a pull request. To trigger a review by codex you’ll have to specifically write `@codex review`.  Afterwards you’ll see Codex react to your comment with 👀 acknowledging that it started your task. Once completed Codex will leave a regular code review in the PR the same way your team would do.  ## Giving Codex other tasks If you mention `@codex` in a comment with anything other than `review` Codex will kick off a [cloud task](https://developers.openai.com/codex/cloud) instead with the context of your pull request.