You can tweak them to do so. I personally tweak mine to act like a disappointed stack exchange veteran.

I personally recommend, but I understand many people do not want to be pushed back by something they see as little more than a servant.

This setup does work to also have agents argue with each other. That can be very interesting, though you have to set them up to be very skeptical. Otherwise they will tend to read another agents assertion as authoritative off the bat.

I am convinced much of the harness/prompt engineering we are doing now will also be automated away. Within 5 years the best practices for the most popular use cases will have been found, automated and fully baked in.