cargo-machette is both a cargo subcommand a direct command except when it isn't

[epage]

    // ...and the "machete" command if ran as cargo subcommand.
    if i == 1 && arg == "machete" {
        continue;
    }

Since your command accepts positional arguments, this will not allow me to run cargo-machette machette where machette is a directory but I'd have to know to run cargo-machette machette machette. Personally, I find it dubious to have a command be dual natured (run in either cargo or out) especially when accepting positional arguments.

[bnjbvr]

You're very right. I didn't quite know how other tools handle this in particular, so I'm happy taking whichever approach is the most appropriate here!