[BUG] Agents view does not work on Linux with Claude 2.1.139

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?

➜ claude --version
2.1.139 (Claude Code)

➜ claude agents   
28 active agents

User agents:
  book-consistency-editor · inherit
  claude-md-optimizer · sonnet
  code-reviewer · inherit
...

and it goes on to list all the 'agents' I have configured, but isn't the new agent view.

What Should Happen?

I expect the new agent view to show as described on https://code.claude.com/docs/en/agent-view

Error Messages/Logs

Steps to Reproduce

As above

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.139

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

Terminator