I think it would be easy to create a Civilization AI that would choose to grow on a certain path with a certain win-style in mind. So if the AI picks military win then it will focus on building troops and acquiring territory and maintaining states of war with other players. What might be hard is other win states like diplomatic or cultural because those require much more intuitive and nuanced decision making without a totally clear course of action.
I think it would be easy to create a Civilization AI that would choose to grow on a certain path with a certain win-style in mind. So if the AI picks military win then it will focus on building troops and acquiring territory and maintaining states of war with other players. What might be hard is other win states like diplomatic or cultural because those require much more intuitive and nuanced decision making without a totally clear course of action.