[zeleniy]

I've tried putting MonkAssister in every folder possible, reloaded, and I can't get it to show up in lua modues.

Did you put Assister folder into C:\Minion\Bots\FFXIVMinion\LuaMods ?

So it looks like
C:\Minion\Bots\FFXIVMinion\LuaMods\Assister

With two files in it:
init
module