[malisper]

Thanks! It looks like by default it catches the first two. Is there a way to configure it to catch the other two? I don't think it can catch the case where you accidentally return nil because sometimes you do actually want to return nil when you see an error. I also couldn't find any linter that checks that you are using errors.WithStack when needed.

[weberc2]

Linting for WithStack seems like it might be tough since you want to make sure the error was annotated exactly once (I think that’s the intended use, anyway?). The linter would need to know whether or not a fallible function call has annotated the error or not. Seems like an interesting exercise in any case.