Xcode 27 was the secret winner at WWD27.
In addition to writing code and debugging issues in your, it can now also run and control the simulator. All of this is now exposed as an MCP tool as well.
Proud to share a feature we've been working hard on! In Xcode 27.0, Agentic Xcode can automatically find runtime bugs for you. After a code change, it installs the app in a simulator, navigates your UI, observes the screen and validates that the feature works flawlessly ... (1/2)