prevent-public-repos-2025

🔥Now, You Can Use This Github App!🔥

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This is a GitHub App that monitors the creation of public repositories and changes from private to public within a GitHub Organization.
It was created as a replacement for Prevent Public Repos by issc29, which is no longer functioning.

Features

Actions Monitored:

• Creation of public repositories
• Changes from private to public

How This GitHub App Works:

• Creates an issue in both the affected repository and the org-settings repository.

Rate Limit:

• Currently, the monitored actions are limited to a maximum of 50 times per hour.

※ Currently, the functionality to apply configurations from `.github/prevent-public-repos.yml` in the `org-settings` repository is not implemented.

Installation in an Organization

1. Install this GitHub App in your Organization
2. Create a repository named org-settings and add a .github/prevent-public-repos.yml file inside it. (Currently, this configuration file is not utilized.)
3. To test its functionality, try creating a public repository. An issue should be created in both that repository and the org-settings repository.

Contribution

Contributions are welcome!

• There are no strict rules for PRs or issues. Please follow general standards.
• Contributions to the TODO section below would be greatly appreciated.
• Currently, merging requires approval from the CODEOWNER (masa0902dev).

TODO

• Implement the functionality to apply settings from .github/prevent-public-repos.yml in the org-settings repository.

• Implement automatic reversion of public repositories to private (currently, only issue creation is supported).
• Add the ability to register repositories that should not be monitored for public status changes (currently, all repositories are monitored).
• Allow customization of issue title and body (currently, values from constants.ts are used).
• Implement email notification functionality for specified users.

Special Thanks

• issc29: Author of Prevent Public Repos

※ This GitHub App prevent-public-repos-2025 has no dependency on Prevent Public Repos by issc29, as no code has been reused. If this GitHub App stops working, please open an issue in this repository.

• tmknom: Author of GitHubセキュリティ Organization運用のベストプラクティス