Slack wants to be primary place people do their work. And they're almost there... It's certainly where you "work" (communicate) with people, it's where many engage with and/or control other platform like project trackers, and it's increasingly the place you interact with whatever AI agents your company uses. It makes perfect send they want to bring the coding agent into the fold (into their UI) as well. And, given Anthropic's release of Claude Tag, they're probably not wrong about that.

They see the entire universe building their own version of Claude Tag and custom internal bots connected to your internal ecosystem, and realizing that they can fight for some enterprise revenue within their own product that everyone else is currently extracting

This is the easiest sell of the century, product can discuss and implement changes without ever getting engineering involved. Or at least that's the theory, I think everyone here can think of a number of reasons to have reservations on this front.