[BUG] Silent failure on MacOS when /desktop transfers session to TCC-protected directory

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?

In some sessions Claude Desktop Code silently ignores user prompts after previousle transfer from claude in terminal via /desktop

Fix: granting Full Disk Access for claude in System Settings/Privacy... resolves it.
macOS: 26.3.1

What Should Happen?

1. Error message like "Cannot access working directory/specific file. Grant Full Disk Access to Claude in System Settings."
2. Unit test scenarios detecting such permission issues

Error Messages/Logs

No single error/indicator that's something is wrong under the hood.

Steps to Reproduce

1. Start claude in iTerm2 (which has FDA) from ~/Documents/...
2. Work on files (rename, etc) by prompting claude
3. /desktop to transfer session to Claude Desktop (no FDA)
4. All prompts produce zero output — no error, no thinking indicator

Claude Model

Not sure / Multiple models

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.92 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_