Hmm, will have to disagree here. I think "one chat to rule them all" is the way it will end.

It does requires having UI components for many different types of interactions (e.g. many ways to collect user input mid-session + display different tools responses like graphs and interactives). With this, people should be able to easily build complex tools/flows on top of that UI, and get a nice, single interface (no siloed tools/swapping) for free. And having this UI be open-source make this easier.

I agree with an end state something like you describe, but I don't think it will be a chat app, I think you'll have an agent lives outside your apps, that managers your apps.