I think the volt commands would be more consistent with following ideas:

Instead of $volt get -u for updating, there could be a separate command like $volt update

The $volt get command as of now, downloads and enables the plugins. So basically it does the same as the command $volt enable, but it also downloads the plugin if it doesn't exist. Instead of that, the $volt get command could just download the plugin without enabling it. But if the user wants to enable it at the same time, he could just write something like $volt get -e <repo> (-e for enable).

what do you think?