Check commands before running

So working on a new project where it will check commands from the server (mainly ulx commands) and will then stop that command from running.
Script runs: ulx adduser Jeff superadmin 1
Jeff won’t made a superadmin until another superadmin verifies that they want Jeff to become superadmin.
This is mainly to stop backdoors and take overs.
Sorry about shit layout and explanation any help would be great. Have a nice day