[BUG] iOS app 1.260618.0 hard-crashes opening a Remote Control session — main-thread - stack overflow in Swift KeyPath metadata

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

iOS app 1.260618.0 hard-crashes opening a Remote Control session — main-thread
▎ stack overflow in Swift KeyPath metadata. iPhone 16 Pro Max, iOS 26.5 (23F77),
▎ CLI 2.1.186 (also repro'd on 2.1.183). Repro: tap any Remote Control session →
▎ instant crash, no UI. Crash: EXC_BAD_ACCESS/SIGSEGV on main thread,
▎ KERN_PROTECTION_FAILURE in the Stack Guard region; ~48 frames of unbounded
▎ recursion in libswiftCore (swift_getTypeByMangledName → decodeMangledType →
▎ createBoundGenericType → _swift_getGenericMetadata → type metadata completion
▎ function for KeyPath/WritableKeyPath, repeating). Started with build 1.260618.0;
▎ 20+ identical crashes in one afternoon. Crash log attached.

What Should Happen?

It should open the remote control session without crashing the app.

Error Messages/Logs

iOS app 1.260618.0 hard-crashes opening a Remote Control session — main-thread 
  ▎ stack overflow in Swift KeyPath metadata. iPhone 16 Pro Max, iOS 26.5 (23F77), 
  ▎ CLI 2.1.186 (also repro'd on 2.1.183). Repro: tap any Remote Control session → 
  ▎ instant crash, no UI. Crash: EXC_BAD_ACCESS/SIGSEGV on main thread, 
  ▎ KERN_PROTECTION_FAILURE in the Stack Guard region; ~48 frames of unbounded 
  ▎ recursion in libswiftCore (swift_getTypeByMangledName → decodeMangledType → 
  ▎ createBoundGenericType → _swift_getGenericMetadata → type metadata completion 
  ▎ function for KeyPath/WritableKeyPath, repeating). Started with build 1.260618.0; 
  ▎ 20+ identical crashes in one afternoon. Crash log attached.

Steps to Reproduce

Open Claude App on iOS, try to connect to any remote control session. Instant crash.

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.186

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_