"visually by capturing Xcode Previews" is probably the thing that will make this worthwhile, also if it's able to interact with the simulator that would be killer.
Beyond that, I'd just keep using Claude Code in the terminal.
Xcode 26.3 – Developers can leverage coding agents directly in Xcode
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Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#42Maybe now they have Claude inside Xcode, the Xcode developers can work faster on fixing all the Xcode issues.
Or is Xcode developed not using Xcode...
(I also 2nd the question about what's really the difference between this and the Xcode 26.2)
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#43Who cares about AI’s embedded in IDEs? Here’s the tooling I need
* text editor with intellisense * build system * visual debugger * CLI coding agent
It’s totally fine if those four things are different. In fact I actually probably prefer them to be different. Having an all-in-one IDE is a complete and total non-goal.
People have historically confused the first three as needing to be a single IDE. This has always been wrong. The number of people who think you can’t debug with Visual Studio if the exe wasn’t built from a .sln is shocking. They’re all independent!
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#44Wait…
https://xcodereleases.com hasn’t shown anything since last December, so I assumed Apple had taken a breather from Xcode development, but they released an RC build today?
Anyway, the Swift version seems unchanged (6.2.3), so is this update mainly for the so-called “Coding Intelligence” features?
In any case, Xcode isn’t my favorite IDE—it’s too slow and feels quite different from other major IDEs—so I probably won’t use it for day-to-day coding (though it’s fine for building and debugging).
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#45Building castles in the sky while the foundation is rotting away :/ Xcode really needs a couple of years of pure bugfix and optimization releases instead of hype-chasing.
Honest question.
I've been using XCode for 10 years. For me, it's only improved and I don't have any real pain points. They are definitely fixing bugs. I make software for iOS, macOS, car play, and apple watch.
Sure sometimes I've got to reset or clear a cache, but this has never stopped my day.
What is so horrible about XCode?
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#46As MKBHD would say, welcome to 2026, Apple.
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#47MCP support is the real story here Means you're not locked into Claude or Codex Can plug in whatever agent you want
100% I hope they open more of the tooling to MCP, Xcode Instruments with real MCP support would be huge.
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#48Does it support API key access or only Claude.ai subscription?
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#49Does it support API key access or only Claude.ai subscription?
Both
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#50When 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.