Introducing draft pull requests
When I was interviewing GitHub employees for my book (https://buildingtoolswithgithub.teddyhyde.io/) one of them made a surprising comment. Early on, his GitHub teammates told him he should create an empty PR with a plan of attack before writing any code. I thought it was a brilliant idea and most teams don't do this. Smart of them to make this a separate feature instead of just bolting on WIP.