AppleScript for displaying OSX notifications when receiving a message in Messages without displaying the message text in the notification.

gistfile1.applescript

using terms from application "Messages"
  on message received theMessage from theBuddy for theChat
		tell application "Notifications Scripting"
			--  This is required for calling the user notification event handlers. The handlers can be in a different script file.
			set event handlers script path to (path to me)
			
			-- The user info parameter is a record. The supported data types are text, integer, real, boolean, date, alias, file and POSIX file.
			set dict to {theName:"Notifications Scripting", theVersion:"1.0", theScript:event handlers script path}
			
			display notification "New Message" subtitle "From " & (theBuddy's name as string) message "" sound name "Default" user info dict
		end tell
	end message received
end using terms from

using terms from application "Notifications Scripting"
	
	-- This handler is called when a notification was delivered.
	-- All parameters are optionnals.
	on notification delivered title aTitle subtitle aSubTitle message aMessage actual delivery date aDeliveryDate user info aDict
	end notification delivered
	
	on notification activated title aTitle subtitle aSubTitle message aMessage delivered date aDeliveryDate activation type aType user info aDict
		tell application "System Events"
			tell application "Messages" to activate
		end tell
	end notification activated
	
end using terms from