i dont want players to be able to use the /kit command at all, is there anyway to do this?
i still want to be able to use it myself to create kits for arenas or npcs.
i could change the command, but tbh, feels pretty bad having to have a password instead of a command, when the easiest would be to have a permission for it.

Just change the /kit command to something else, that way when they type /kit it will say "unknown command", you just have to remember what it is so you can use it.
The other option is to make all the npc kits "hidden" and "npconly" and the permission "kits.npconly" , also make the kits not viewable by players who dont have the permission.

"Kit chat command": "kit",​