A CLI chat interface seems ideal for when you keep code "at a distance", i.e. if you hardly/infrequently/never want to peek at your code.

But for writing prose, I don't think chat-to-prose is ideal, i.e. most people would not want the keep prose "at a distance".

I bet most people want to be immersed in an editor where they are seeing how the text is evolving. Something like Zed's inline assistant, which I found myself using quite a lot when working on documents.

I was hoping that Cowork might have some elements of an immersive editor, but it's essentially transplanting the CLI chat experience to an ostensibly "less scary" interface, i.e., keeping the philosophy of artifacts separate from your chat.