How to remove server commands example /me, /verion /msg ? override is not an option pick permission does not work player.addAttachment(plugin, "bukkit.command.version", false) in general, the goal is to remove commands from the server without using third-party plug-ins, either by configuring configs or by your code
Try the PlayerCommandPreprocessEvent, and check if the label is "me" or whatever command you don't want to allow. If it is, cancel the event, and send the player a message like "Unknown command" or something