Claude Code tab in Desktop App stuck on "Tinkering..." then ECONNRESET

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?

Environment:

• App: Claude.app (Desktop) , Claude Code via antigravity
• OS: macOS
• Model: Sonnet 4.6
• Claude Code via terminal: works fine

Bug description:
The Code tab in the desktop app gets stuck on "Tinkering..." for several minutes, then returns:
API Error: Unable to connect to API (ECONNRESET)

What I tried:

• Restarted the app
• Clicked "Relaunch to update"
• Ran pkill -f "claude" and reopened
• Claude Code works normally when launched directly from terminal

Expected behavior:
Claude Code tab should work the same as terminal

What Should Happen?

Claude should answer my question and to do the tasks

Error Messages/Logs

API Error: Unable to connect to API (ECONNRESET)

Steps to Reproduce

1. Open Claude.app on macOS
2. Click on the "Code" tab
3. Type any message (e.g. "hi")
4. Wait

Result: Stuck on "Tinkering..." for several minutes, then returns:
"API Error: Unable to connect to API (ECONNRESET)"

Note: Claude Code works perfectly when launched directly from terminal with claude command.

What I tried:

• Restarted the app
• Clicked "Relaunch to update"
• Ran pkill -f "claude" and reopened

Environment:

• OS: macOS
• Model: Sonnet 4.6

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.138

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_