In my current game an NPR spawned on a planet orbiting a massive star at extreme distance. They are still doing ok and sending ships to other systems, but probably wouldn't without the AI fuel cheat.
In C# since they cannot cheat on fuel, will they have an estimate of what range their designs need to accomplish their missions? In this case with orbiting distance 91b km even a 200b range would just barely take them out of the system and back. And will they recognize the fuel production/logistics required on a strategic level to expand ahead of time and prioritize that.
I don't expect the AI to handle extreme corner cases well, but this may also apply in some more common scenarios like the AI ensuring they actually have the range to get to you before deciding to attack. Just throwing the thought out in case it helps Steve spot a bug in advance.