[BUG] Claude desktop app crashing as soon as I open it.

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?

## Summary

Claude Desktop crashes immediately when I open the Claude Code section on macOS.

## Environment

- Claude Desktop version: `1.10628.0`
- Platform: macOS, `darwin arm64`
- Embedded Claude Code / CCD version in logs: `2.1.160`
- Crash signal from macOS logs: `SIGTRAP(5)`

## Steps to Reproduce

1. Open Claude Desktop.
2. Go to the Claude Code section.
3. App closes immediately.

## Expected Behavior

Claude Code section opens and completes VM/runtime setup.

## Actual Behavior

Claude Desktop exits immediately. macOS logs show:

```text
Process exited: <RBSProcessExitStatus| domain:signal(2) code:SIGTRAP(5)>

Claude logs show the crash happens during Claude Code VM/rootfs setup:

[Bundle:status] rootfs.img missing
rootfs.img not found, downloading...
Downloading rootfs.img...
[download:1] Starting download from https://downloads.claude.ai/vms/linux/arm64/5680b11bcdab215cccf07e0c0bd1bd9213b0c25d/rootfs.img.zst

What I Tried

• Verified claude_desktop_config.json has no MCP servers configured.
• Moved partial VM bundle aside:
• ~/Library/Application Support/Claude/vm_bundles/claudevm.bundle.partial-20260603-155751
• Relaunched Claude Desktop.
• Claude created a fresh VM download, but crashed again with the same SIGTRAP(5).

Additional Evidence

Crashpad dump was generated:

~/Library/Application Support/Claude/Crashpad/completed/9d9d5d9a-73cd-4158-816b-4c33ad2d2a49.dmp

Crash dump strings include VM/native modules:

claude-native-binding.node
vmnet
libCoreVMClient.dylib

This looks tied to the native Claude Code VM/runtime path, not normal chat UI or MCP configuration.

Attach the zip we made:

[claude-desktop-crash-report-2026-06-03.zip](https://github.com/user-attachments/files/28547518/claude-desktop-crash-report-2026-06-03.zip)

### What Should Happen?

Claude Desktop should keep running when I open the Claude Code section, initialize/download the Claude Code VM runtime successfully, and show the Claude Code interface instead of closing.

### Error Messages/Logs

```shell

Steps to Reproduce

1. Install/open Claude Desktop on macOS arm64.
2. Sign in to Claude.
3. Open the Claude Code section in Claude Desktop.
4. Wait while Claude Desktop starts Claude Code runtime setup.

Observed result: Claude Desktop closes during Claude Code VM/rootfs setup.

Relevant context from logs:

- Claude Desktop version: `1.10628.0`
- Embedded Claude Code / CCD version: `2.1.160`
- No MCP servers configured in `claude_desktop_config.json`
- Crash happens while `rootfs.img` is missing and being downloaded:

```text
[Bundle:status] rootfs.img missing
rootfs.img not found, downloading...
Downloading rootfs.img...
[download:1] Starting download from https://downloads.claude.ai/vms/linux/arm64/5680b11bcdab215cccf07e0c0bd1bd9213b0c25d/rootfs.img.zst

I also tried moving the partial VM bundle aside and relaunching:

~/Library/Application Support/Claude/vm_bundles/claudevm.bundle

Claude created a fresh VM download but crashed again with the same behavior.

### Claude Model

None

### Is this a regression?

Yes, this worked in a previous version

### Last Working Version

_No response_

### Claude Code Version

Claude 1.10628.0 (b4f860) 2026-06-02T05:48:19.000Z

### Platform

Anthropic API

### Operating System

macOS

### Terminal/Shell

Terminal.app (macOS)

### Additional Information

_No response_