zlacker

>>davidb+(OP)
When do you actually need to open Xcode if you have XcodeBuildMCP [0]?

I haven't opened Xcode in months. My terminal: Claude writes code. build_sim. launch_app_sim. screenshot describe_ui.

What still requires Xcode: Instruments profiling, Signing/provisioning

For UI iteration, describe_ui returning the accessibility tree might actually be more useful to an agent than a preview screenshot.

>>anupam+Sg
I still haven't found a useful way to replicate preview when iterating quickly on a view (though it's an edge case)

>>HaloZe+dj
XcodeMCP (Native MCP added in 26.3) Implements this with RenderPreview

RenderPreview: Builds and renders a SwiftUI #Preview, returns snapshot