[BUG]**Bug: Cowork tab not appearing in mode selector**

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?

Setup:

• MacBook Air M2, 2022 (Apple Silicon)
• macOS: Ventura 13.0
• Claude Desktop version: 1.3561.0
• Plan: Pro

Expected behavior:
Cowork tab should appear in the mode selector alongside Chat and Code.

Actual behavior:
Only Chat and Code tabs are visible. Cowork tab is completely missing.

Steps already tried:

• Fully quit and relaunched the app (Cmd+Q)
• Signed out and signed back in
• Completely uninstalled and reinstalled Claude Desktop from scratch
• Confirmed app is on the latest version

Support response:
Support confirmed that my setup meets all requirements (Apple Silicon, Pro plan, latest version) but was unable to resolve the issue and directed me to file a bug report.

What Should Happen?

The Cowork tab should appear in the mode selector alongside Chat and Code in Claude Desktop.

Error Messages/Logs

Steps to Reproduce

Install Claude Desktop (version 1.3561.0) on MacBook Air M2 (Apple Silicon), macOS Ventura 13.0
Sign in with a Pro plan account
Look at the mode selector at the top of the app

Claude Model

None

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

N/A - this is a Claude Desktop app issue, not Claude Code CLI. Desktop version: 1.3561.0

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

This issue is with Claude Desktop app (not Claude Code CLI). The Cowork tab is missing from the mode selector. Setup: MacBook Air M2 2022, Apple Silicon, macOS Ventura 13.0, Claude Desktop v1.3561.0, Pro plan. Tried: full quit, sign out/in, complete reinstall. Support confirmed setup meets all requirements but could not resolve. Similar issue reported on Windows (marked as duplicate).