[BUG] 'No Json object found in response' when creating an agent using '/agents' command

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?

'No Json object found in response' when creating an agent using '/agents' command

What Should Happen?

the agent should be created.

Error Messages/Logs

Steps to Reproduce

use /agents in claude code
create new agent
ask claude to configure
give description

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.167

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

<img width="713" height="233" alt="Image" src="https://github.com/user-attachments/assets/65437372-e4e4-4efb-9575-c6701d6f864d" />