The issue was that I was adding to a builder after it was used to build
With the command class passed, it only works with /plugin:cmd and doesn't give hints for the arguments
Without the command class, it doesn't show the next argument until it's typed in and also accepts invalid subcommands
#82
Removed project files
Added permission for each subcommand (#89)
Made separate instances of the command handler for each plugin
Spent a lot of time crafting type arguments then realized it won't work (per-plugin managers)