AppleScript Apps often don't have a valid (or unique) bundle 
identifier in their Info.plist.

Starting such an application should be fairly easy, though. Create an 
action containing an AppleScript actor with a source similiar to this 
one:

tell application "Name Of Your Own Application" to activate

Besides: you can also change the resolution of your Mac Mini directly 
from within Remote Buddy's menu. These resolution changes are also 
available as entries that you can place anywhere in Remote Buddy's 
menu using drag and drop.

Best regards, 
Felix Schwarz