Development teams using GitHub rely on pull-request mechanism for code-review before some changes are adopted and merged into the mainstream development branch. This is a very convenient process as GitHub provides a nice UI to discuss changes and annotate modified lines in code. Manual code review anyway can’t catch all possible mistakes, and may be a waste of time when the proposed changes has some negative impact on project that the Jenkins continuous integration job can detect. The Pull-Request Builder for GitHub plugin takes advantage of GitHub APIs to get notified when a pull-request is created / updated, and can trigger a build to automatically check the proposed changes. The build status is then reported on pull request, and reviewer can just ignore an invalid pull-request, as the requester can check the log and fix his changes.