They wouldn’t require you to use their closed source client if they weren’t planning on using it to extract value from you later. It’s still early & a lot more capabilities are going to be coming to these tools in the coming months. Claude Code or an equivalent will be a full IDE replacement and a lot of the integration and automation mechanisms are going to be proprietary. Want to offload some of that to the cloud? Claude Code Web is your only option. Someone else drops a better model or a model that’s situationally better at certain types of tasks? You can’t use it unless you move everything off of that stack.