use-cases/github-code-reviews.md Codex Docs, 2026-04-15 06:44 UTC → 2026-04-24 12:28 UTC

1# Review pull requests faster | Codex use cases1# Review pull requests faster | Codex use cases

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3Codex use cases

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5![](/assets/OpenAI-black-wordmark.svg)

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7![Codex](/assets/OAI_Codex-Lockup_Fallback_Black.svg)

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9Codex use case

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11# Review pull requests faster

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13Catch regressions and potential issues before human review.

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15Difficulty **Easy**

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17Time horizon **5s**

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19Use Codex in GitHub to automatically surface regressions, missing tests, and documentation issues directly on a pull request.

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21## Best for

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23 - Teams that want another review signal before human merge approval

24 - Large codebases for projects in production

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26# Contents

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3[← All use cases](https://developers.openai.com/codex/use-cases)28[← All use cases](https://developers.openai.com/codex/use-cases)

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5Copy page [Export as PDF](https://developers.openai.com/codex/use-cases/github-code-reviews/?export=pdf)30Copy page [Export as PDF](https://developers.openai.com/codex/use-cases/github-code-reviews/?export=pdf)

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63## Related use cases88## Related use cases

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65[![](/images/codex/codex-wallpaper-1.webp)90[![](/images/codex/codex-wallpaper-2.webp)

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67### Bring your app to ChatGPT92### Deploy an app or website

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69Build one narrow ChatGPT app outcome end to end: define the tools, scaffold the MCP server...94Use Codex with Build Web Apps and Vercel to turn a repo, screenshot, design, or rough app...

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71Integrations Code](https://developers.openai.com/codex/use-cases/chatgpt-apps)[![](/images/codex/codex-wallpaper-2.webp)96Front-end Integrations](https://developers.openai.com/codex/use-cases/deploy-app-or-website)[![](/images/codex/codex-wallpaper-1.webp)

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73### Coordinate new-hire onboarding98### Bring your app to ChatGPT

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75Use Codex to gather approved new-hire context, stage tracker updates, draft team-by-team...100Build one narrow ChatGPT app outcome end to end: define the tools, scaffold the MCP server...

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77Integrations Data](https://developers.openai.com/codex/use-cases/new-hire-onboarding)[![](/images/codex/codex-wallpaper-2.webp)102Integrations Code](https://developers.openai.com/codex/use-cases/chatgpt-apps)[![](/images/codex/codex-wallpaper-1.webp)

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79### Create a CLI Codex can use104### Complete tasks from messages

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81Ask Codex to create a composable CLI it can run from any folder, combine with repo scripts...106Use Computer Use to read one Messages thread, complete the task, and draft a reply.

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83Engineering Code](https://developers.openai.com/codex/use-cases/agent-friendly-clis)108Knowledge Work Integrations](https://developers.openai.com/codex/use-cases/complete-tasks-from-messages)