I would use it to pre-process Github issues for me. Attempt to reduce some random user's rambling to a clear set of repro instructions, prompt for more information from the user when necessary, ping other devs' chatbots for help. Basically, issue templates, taken to the next level.

Also, I would use it to troll bureaucrats when I give up in frustration. It should try to force the bureaucrat to admit flat out that their logic is fundamentally flawed, and then ask them to propose a solution }:)