use-cases/github-code-reviews.md Codex Docs, 2026-03-31 06:35 UTC → 2026-04-23 18:31 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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30Copy page [Export as PDF](https://developers.openai.com/codex/use-cases/github-code-reviews/?export=pdf)

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5Use Codex in GitHub to automatically surface regressions, missing tests, and documentation issues directly on a pull request.32Use Codex in GitHub to automatically surface regressions, missing tests, and documentation issues directly on a pull request.

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7Easy34Easy

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24 Focus the review on risky surfaces such as secrets, auth, and dependency changes.51 Focus the review on risky surfaces such as secrets, auth, and dependency changes.

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53| Skill | Why use it |

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55| [Security Best Practices](https://github.com/openai/skills/tree/main/skills/.curated/security-best-practices) | Focus the review on risky surfaces such as secrets, auth, and dependency changes. |

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26## Starter prompt57## Starter prompt

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28@codex review for security regressions, missing tests, and risky behavior changes.59@codex review for security regressions, missing tests, and risky behavior changes.

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61@codex review for security regressions, missing tests, and risky behavior changes.

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30## How to use63## How to use

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32Start by adding Codex code review to your GitHub organization or repository. See [Use Codex in GitHub](https://developers.openai.com/codex/integrations/github) for more details.65Start by adding Codex code review to your GitHub organization or repository. See [Use Codex in GitHub](https://developers.openai.com/codex/integrations/github) for more details.

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55## Related use cases88## Related use cases

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

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

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61Build 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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63Integrations Code](https://developers.openai.com/codex/use-cases/chatgpt-apps)[![](/images/codex/codex-wallpaper-3.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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65### Generate slide decks98### Bring your app to ChatGPT

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67Use Codex to update existing presentations or build new decks by editing slides directly...100Build one narrow ChatGPT app outcome end to end: define the tools, scaffold the MCP server...

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69Data Workflow](https://developers.openai.com/codex/use-cases/generate-slide-decks)[![](/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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71### Kick off coding tasks from Slack104### Complete tasks from messages

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73Mention `@Codex` in Slack to start a task tied to the right repo and environment, then...106Use Computer Use to read one Messages thread, complete the task, and draft a reply.

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75Integrations Workflow](https://developers.openai.com/codex/use-cases/slack-coding-tasks)108Knowledge Work Integrations](https://developers.openai.com/codex/use-cases/complete-tasks-from-messages)