It would work pretty much the same as the Architect intelligence mode where you can see gang territories and gang members. It could also tell you where there is heavy guard presence. I was thinking this would work like making a zone red if there is heavy guard presence (around 5-6 guards), yellow for medium, green for light and white for none. I was also thinking of letting us see the regime for the prison, but this wouldn't really fit in an intelligence mode when you could just click on where it says "shower" for example under the clock to let us see it.
So, to sum it up for lazy people
:Lets us see gang zones/territories and gang members
Lets us see guard presences around the prison
This might be a bit OP if you had access to it right away when entering the prison so to counteract this I thought that you would have to at least spend a while in the prison and explore a bit, this might mean getting your a** kicked a few times but, ah well
This is all I could think of ATM but I think this would be a good start for a possible intelligence view for escape mode. Thanks for reading!