MCP support is the real story here
Means you're not locked into Claude or Codex
Can plug in whatever agent you want
Xcode 26.3 – Developers can leverage coding agents directly in Xcode
11–20 of 348 posts
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#12[deleted]
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#13Building 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.
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#14Just in time for AI to go all tits up.
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#15I am already using Claude in Xcode 26.2. What did they change / add specifically in 26.3? It's not super clear behind the marketing haze.
FTA: “In addition to these built-in integrations, Xcode 26.3 makes its capabilities available through the Model Context Protocol, an open standard that gives developers the flexibility to use any compatible agent or tool with Xcode.”
There may be other improvements.
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#16As long as it's purely opt-in and before opting in no data is ever sent to some server and no source code can be changed by it, I'm okay with it.
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#17Does agents.md allow for automatic discovery of mcp tools (Tools: run ./tool-discovery.sh)
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#18I'm looking forward to trying the SwiftUI preview integration, though from my experience using the xcodebuildmcp and axe tools to let agents run simulators and capture screenshots, expectations will be low. It seemed like the models were capable of identifying issues like "button that should be there is not displayed", but not identifying when the layout is wrong or some element is too big.
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#19I built an entire iOS app without opening Xcode UI even once. Why so many iOS engineers prefer XCode?
Re: Xcode 26.3 – Developers can leverage coding agents directly in Xcode
#20First time I tried it, claude built all the files in the wrong directory lol.
It's working fine now.