The details on what the architecture of this aren't clear, but I can see that the big feature is deeper integration into the browser.

To me this is an obvious direction for all coding agents to go in. Right now the cursor chrome browser MCP server doesn't work very well, but it's very obvious to me that this is the direction things need to go in.

I'm not sure why focusing on a framework would fundamentally make this any better than the generic approach to getting good context directly from the browser.