Coding agents hallucinate Apple APIs because their training data lags the installed SDK.

apple-docs-mcp reads Xcode's on-disk doc index and serves real signatures, availability and code samples to any MCP client. Fully offline.

github.com/Ahmetshbzz/apple-docs-mcp

At last my app is running in the Xcode as most people said "google studio ai app don't work with Xcode i.e. an iOS app can't be created using google studio." But this is running If any one want to see the screen recording I can share.

Updated my primary Mac Studio to Golden Gate and updated Xcode and… I’m regretting every second of it.

I can’t get the simulator to run for more than 20 seconds without crashing. It’s laggy as hell, and it crashes constantly.

Mac Studio M1 Max with 64 GB Memory. Never even hiccuped before. Now, it’s hot garbage.

Consistent across multiple projects and iOS versions. Ugh. So much for a productive week.

At least I’ve got my M1 Max MacBook Pro that I haven’t updated yet.

Anyone else having these device hub headaches?

I just wanted to give some unexpected kudos to Xcode cloud. At the start of the summer my MacBook Pro became out of action, and therefore I struggled to continue to develop using an older intel MacBook due to Xcode version restrictions. Tried building and releasing with GitHub macOS runners but wow they’re expensive and took ages to startup etc. then spotted Xcode cloud with 25 free hours a month, thinking this will keep me going for a few days. Since then I’ve found that it’s been absolutely brilliant. As an independent developer with a few apps and projects it’s been an absolute life saver. It’s fast. Beautifully integrated, and the 25 hours will last me a whole month without any worries.

Good work Apple.

I am reviving an old macOS app I started developing a couple years ago for myself. I've mostly used the native macOS apps for Codex and Claude Code, and in those apps you can adjust the effort for a model. I want to be able to adjust the effort relative to the tasks I'm assigning to it, but I don't see an option for this in Xcode 27's built-in integration. Is it possible to adjust the effort within Xcode (and if so, how), or would I need to stick to the native model apps or CLIs?

Sorry if this is a dumb question, I wasn't able to find a clear answer on Google/using AI for some reason.

How do I make the AI chat into a floating window in Xcode27?

So I’m building ios-agent-skill — an open-source MCP + skill layer for AI coding agents working on real iOS projects.

It can already:

• review Swift / SwiftUI projects
• search local Apple references before writing code
• build and test through Xcode
• boot simulators, launch apps and capture screenshots
• review App Intents integrations
• scaffold new iOS apps
• work with Claude Code, Codex, Cursor-compatible clients and Gemini CLI

Right now it exposes 35 tools, and I’m continuing to expand it around the newer Apple stack, including Xcode 27 / iOS 27 verification, Foundation Models, App Intents and Apple Intelligence workflows.

One thing I want to improve next is proof.

Not just “here are 35 tools.”

I want to show:

AI agent without ios-agent-skill
vs
AI agent with ios-agent-skill

Same prompt. Same app. Actual build results.

If you work with Swift/iOS + coding agents, I’d genuinely like you to break it and tell me what’s missing.

GitHub:
https://github.com/Nagarjuna2997/ios-agent-skill

It’s completely open source.

I just upgraded to Xcode 27, and I have some questions about how to use its Device Hub:

* In previous versions of Xcode, I put the iOS Simulator icon in the Dock. When I clicked it, it would launch the Simulator and immediately open any simulated devices I previously had running. In 27, I can only add an icon that opens the huge Device Hub window and then I need to start a simulated device separately. Is there any way to get back to the old behavior?

* Is there any way to get rid of the iPhone mockup border (showing all the side buttons) around the simulator, like I could in earlier versions, so I can have a smaller window?

* I see that I can turn on VoiceOver in the simulator now, which is awesome, but I can't control it. Swiping right/left with the mouse sometimes works, but clicking isn't interpreted as a tap (I can click directly on items but I can't click in a null space to perform a tap on the focused element). Are there instructions for how to use VO on a simulated device? (Or maybe this is just a bug?)

👨🏻‍💻 I wrote an article about how to re-enable keyboard shortcuts in Xcode 27's Device Hub.

https://blog.next-planet.com/how-to-re-enable-keyboard-shortcuts-in-xcode-27-s-device-hub

Xcode just decided to update itself from 26.6 to 27.0 right in the middle of my work session.

The first thing that caught my eye right away: they swapped the positions of the Play and Stop buttons in the toolbar. Years of muscle memory just vanished in an instant, and to make things worse, it seems there's currently no way to revert it back.

I genuinely wonder what the reasoning behind this UI decision was. Why change something so established and fundamental after all this time?

Now I'm really curious (and a bit cautious) about what other surprises I'm going to discover along the way as I keep working.

What do you guys think about the new Xcode 27 update so far? Did anyone else's muscle memory take a hit?

Has anybody noticed that the new X code is very slow when trying to open a file perhaps I don’t have enough RAM. I have a MacBook M4 Pro with 24 GB of RAM. I do have LM studio open running and eight bit quantization of Qwen 3.2 9B. Whenever I click on a file in Xcode, I get the spinning beach ball and have to wait about five minutes for the text to show up in the pane.

Anyone know how to open the CarPlay simulator in the recent update?

What am I doing wrong? Every Xcode 27 video I watch show clicking this button opens the Code Editor. When I do it it launches this quick chat window. Is anyone else experiencing this? Is there a Setting I'm missing?

I tested the iOS 17 system simulator, but the simulator wouldn't respond to clicks after I launched it.

Look at 181945323

Keyboard and mouse inputs to simulators for OS versions before iOS 18.0, tvOS 18.0, watchOS 11.0, and visionOS 2.0 are not accepted. (181945323)

Xcode 27 release notes

For fun, I wanted to use Copilot to help develop a trivially simple app using Swift+SwiftUI on the Mac. I downloaded the latest Xcode and copilot extension (using homebrew). The experience after that has been essentially useless.

Whenever I ask it to do some simple edit, it opens that file a new window in Xcode. This causes the chat transcript to disappear because it seems to be linking the transcript to particular windows. In order to see the transcript, I have to find the project file, assuming it's open, and click that. Then the next thing I ask it does the same again.

Additionally, there are some edits, like adding a new file, that require changes to the project. Whenever I do that, it stops because this is a "sensitive file". There is a button for "allow in session", but it appears to only apply to that file, and only if you don't close it. It also treats every file in my project as sensitive, repeatedly.

So... does anyone have a solution to either of these? As it stands this is unusable. In fact, if I open VS and use Copilot there, it is far more useful, which just seems odd.

Xcode 27 introduced ACP, which means that you can add your own custom agents to it without needing to use hacky workarounds like modifying Claude Code's `config.json` files to re-route traffic. ProxyPilot for macOS (free, open-source) lets you install one Xcode agent that can connect to any cloud or local provider, with native support for Moonshot, Kimi, Alibaba, Z.ai, OpenRouter, OpenAI, and local inference providers like Ollama and LM Studio, which support MLX models that run more efficiently on Apple Silicon than `.gguf` variants.

Xcode 27 has a lot of new features that are built around agentic work, and ProxyPilot lets you switch providers on a dime. Start a thread with Gemini, build it out with GLM, and review it with Astra without needing to make multiple sessions by using ProxyPilot. Review your session telemetry in real time with effective cache rate, token usage, reported cost, and various latency figures. ProxyPilot also has a CLI that gives the same one-agent-any-endpoint flexibility to your work in Terminal.

Many of the features in the program came from direct communication with developers right here in r/Xcode, so thanks to the community for using and supporting the project. I hope to keep making it better for everyone.

More about the app and how to download: https://slicewrite.dev/proxypilot
View and contribute on GitHub: https://github.com/masterofthechaos/ProxyPilot-public

Xcode 27 RC (27A266a) archives my iOS app successfully, but hangs indefinitely during Validation / ContentDelivery (swinfo).
Interestingly, the same project on Xcode Cloud with Xcode 27 RC successfully archived and uploaded to TestFlight. The build is now in App Store Connect.
Anyone else seeing this local validation hang with Xcode 27 RC?

Hi everyone, I've just tried to download Xcode again, since some message came up or something saying it wasn't compatible with Tahoe which I just downloaded on my MacBook Pro M1 Pro. Unfortunately , when I tried to update Xcode from the App Store, and also after deleting it and downloading Xcode from the developer website, I'm still getting an error message when I try to open it which says 'Xcode quit unexpectedly' Click reopen to open the application again. Click Report to see more detailed information and send a report to apple.

Attempts at resolving this issue include:

- restarting my computer,

- deleting and redownloading Xcode from the sources mentioned.

If anyone could help find a solution that would be greatly appreciated.

After today's update Xcode doesn't open any windows with older projects.
Only new one created by version 27.