In the video "Xcode, Agents and You" (direct link), the presenter asks for a walkthrough of the open project and Xcode presents a rich-text overview of the app's architecture, with color-coded diagrams and clickable links to the files it discusses.
I can't get that to work when I try it, though. Is this a preview of a feature that isn't yet available in the first beta of Xcode 27? Is this because I'm using a local model or because it only works with a specific kind of model?
Hello! I think I just answered a related question of yours about local models here, so I'll keep it brief: Yeah, it's probably because you are using a local model.
If you use the "Chat" feature in Xcode to configure that local model, you will be missing out on the agentic features, so you will need to configure an agent harness like OpenCode to get full functionality.
It's also just worth noting that these kinds of features are really specific to each agent and its capabilities. If you are using a local model, the agent is not likely to be quite as creative, so when you ask for something like an HTML diagram of your project, your results may not be quite as magical. That said, I suspect you'll still get something very useful.
