That takes care of the lowest-level stylistic issues, but doesn't capture things like "why are we trapping errors here rather than in a central error handler th

That takes care of the lowest-level stylistic issues, but doesn't capture things like "why are we trapping errors here rather than in a central error handler there". The sort of question where the app will function either way, but reasonable people can have aesthetic disagreements, and a formatter is totally useless.