[BUG] CLI output was not valid JSON. This may indicate an error during startup. Output: Invalid configuration in /etc/srt-settings/f64bc828-10de-4853-8c01-44a45d9c86b5.json:

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 I try any task in cowork on the desktop app, I get the attached error. I've tried resolving via code and support and was told it is server-side in Anthropic's hosted runtime/an infrastructure issue on your end.

the UUID from the error is 388484d1-4f71-4c25-92b9-4b9f33ed8d55

<img width="597" height="261" alt="Image" src="https://github.com/user-attachments/assets/f5c1e378-19b2-4251-8653-c52674b5bd50" />

What Should Happen?

cowork should be able to perform my tasks

Error Messages/Logs

CLI output was not valid JSON. This may indicate an error during startup. Output: Invalid configuration in /etc/srt-settings/f64bc828-10de-4853-8c01-44a45d9c86b5.json:

Steps to Reproduce

Any message via cowork returns this error

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

n/a

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_