Earlier quoted context omitted.
Our plans is to begin with GitHub support only, since it is (at the moment at least...) the most popular service. But later we plan to support both GitLab and Bitbucket too.
Sweet action! Depending on how far you want to go with the Bitbucket integration, you could potentially inject warnings on the commit, branch, and pull request pages using the Bitbucket Connect framework. One of our engineers wrote an add-on recently for enforcing some less automated aspects of CONTRIBUTING.md that you might be interested in too: https://blog.bitbucket.org/2016/01/26/pull-request-guideline...
Re: Show HN: GitMagic – Enforce your GitHub contribution guidelines
#41Thanks, that sounds really cool and would definitely be something we will look into pretty soon :)