Merge bots

Automated workflow engines that merge pull requests once they clear CI pipelines and satisfy custom security rules.

Merge bots automate the final gate of the software lifecycle by monitoring repositories for passing status checks. Teams at AWS and Mozilla use these engines to enforce strict criteria: requiring multiple peer approvals, passing unit tests, and ensuring branches stay synchronized. By handling the merge button automatically, they eliminate manual bottlenecks and maintain high deployment frequencies (frequently cutting idle PR time by 40 percent or more).

https://mergify.com