Wait, could we possibly make stealth-based levels by using robot triggers? Cuz that would be awesome.
You might be able to make some sort of approximation. The robots don't react to being cut if they have a trigger area, so it's a bit of a blunt instrument.
Welp, update idea? ;) Maybe robots having an area of sight and having an option for them to patrol or only chase after the player if they are on that area?