use-cases/github-code-reviews.md Codex Docs, 2026-03-31 06:35 UTC → 2026-04-15 06:44 UTC

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

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5Use Codex in GitHub to automatically surface regressions, missing tests, and documentation issues directly on a pull request.7Use Codex in GitHub to automatically surface regressions, missing tests, and documentation issues directly on a pull request.

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7Easy9Easy

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24 Focus the review on risky surfaces such as secrets, auth, and dependency changes.26 Focus the review on risky surfaces such as secrets, auth, and dependency changes.

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28| Skill | Why use it |

29| --- | --- |

30| [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 prompt32## Starter prompt

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28@codex review for security regressions, missing tests, and risky behavior changes.34@codex review for security regressions, missing tests, and risky behavior changes.

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

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30## How to use38## 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.40Start 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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61Build one narrow ChatGPT app outcome end to end: define the tools, scaffold the MCP server...69Build one narrow ChatGPT app outcome end to end: define the tools, scaffold the MCP server...

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63Integrations Code](https://developers.openai.com/codex/use-cases/chatgpt-apps)[![](/images/codex/codex-wallpaper-3.webp)71Integrations Code](https://developers.openai.com/codex/use-cases/chatgpt-apps)[![](/images/codex/codex-wallpaper-2.webp)

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65### Generate slide decks73### Coordinate new-hire onboarding

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67Use Codex to update existing presentations or build new decks by editing slides directly...75Use Codex to gather approved new-hire context, stage tracker updates, draft team-by-team...

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69Data Workflow](https://developers.openai.com/codex/use-cases/generate-slide-decks)[![](/images/codex/codex-wallpaper-2.webp)77Integrations Data](https://developers.openai.com/codex/use-cases/new-hire-onboarding)[![](/images/codex/codex-wallpaper-2.webp)

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71### Kick off coding tasks from Slack79### Create a CLI Codex can use

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73Mention `@Codex` in Slack to start a task tied to the right repo and environment, then...81Ask Codex to create a composable CLI it can run from any folder, combine with repo scripts...

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75Integrations Workflow](https://developers.openai.com/codex/use-cases/slack-coding-tasks)83Engineering Code](https://developers.openai.com/codex/use-cases/agent-friendly-clis)