Cowork not activating for PRO plan: cobalt_plinth feature flag disabled by policy

Summary

Cowork mode (Claude Desktop) does not fully activate despite having a PRO plan and the latest app version (1.15962.1).

Environment

• OS: Windows 11
• App version: 1.15962.1
• Claude Code VM: 2.1.187
• Plan: PRO
• Account: hst0607@gmail.com

What's happening

After diagnosing local config files, the following was found:

1. policy-limits.json and cowork-policy-limits-cache.json both have:

```json
"allow_cobalt_plinth": { "allowed": false }