@interfacedy you would need to use TACACS in order to determine the commands used configuring the switch/router. RADIUS will not provide this information.
If you type the command and don't press enter, nothing is sent to ISE, but if you press enter each command is authorised by TACACS independently. It doesn't matter about saving or not, if you are not authorised by the TACACS server to enter the command you will not be allowed.