I'm going to regularly forget whether it's coder user or coder users (it's users). We do try to offer a little help:

unknown command "user" for "coder"

Did you mean this?
        users

Run 'coder --help' for usage.

But I think we should just run coder users (with a warning?). There's no ambiguity in this case; we know what the user wants, so we shouldn't make them go through another step. Same goes for coder templates but not coder dotfiles.