Automated Program Repair

One case where this is already eminently possible, is automatically keeping a codebase's dependencies up-to-date. We already have CI scripts that find out-of-date dependency specifications and notify the developer of them. It's not far from there to having said CI script generate a PR for an update to said dependency, hypothetically apply it, and then actually merge it in if all the tests still pass. (And, rather than just giving up if the absolute-newest dep version doesn't work, such a system could easily be extended to bisect the dep's version history to find the newest version it could update to without breaking the build, perhaps constrained by the dependency's version-constraint string.)

e.g. the true state of AI today suffers from our pedestrian ability to actually specify what we're trying to do?