Cowork: Claude Code process exits with code 1 — Failed to create bridge sockets after 5 attempts

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?

When creating a Cowork task that uses an MCP connector (e.g. Canva), Claude Code process immediately exits with code 1. The error in ~/Library/Logs/Claude/cowork_vm_node.log is:

Error: Failed to create bridge sockets after 5 attempts
Process exited, code=1, signal=null, duration=~1000ms, oom=false

The UI shows "Something went wrong — Claude Code process exited with code 1".

What Should Happen?

Cowork task with MCP connector should start and run successfully without bridge socket errors.

Error Messages/Logs

From ~/Library/Logs/Claude/cowork_vm_node.log:

[vm-stderr] Error: Failed to create bridge sockets after 5 attempts
[Process] Exited, code=1, signal=null, duration=912ms, oom=false

Claude Code VM version: 2.1.111
macOS: Darwin 25.3.0

Steps to Reproduce

1. Open Claude desktop app → Cowork
2. Create a new task that uses an MCP connector (e.g. "Canva: make me Instagram designs")
3. Task immediately fails with "Something went wrong — Claude Code process exited with code 1"

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.89 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

The MCP connector itself works fine — tested Canva MCP directly in Claude Code and it returns correct results. The issue is specifically with the bridge socket mechanism used by Cowork VM to communicate with MCP servers. Restarting Claude app does not fix the issue.