In vanilla/bukkit minecraft when you do not have permission to activate a command it says something along the line of "You do not have permission to perform this command" and when the command doesn't exist it says "command doesn't exist type /help for help" even though I have the /plugins command disabled for normal users they can still guess which plugins I have installed by the above responses. What I want, a plugin that displays when a user doesn't have access to a command and a command doesn't exist to display "You do not have permission to perform this command, type /help [n] for help!" If they have the permission node deny.bypass then it will go to the default responses (the ones listed at the top)
