[BUG] Dispatch spawn fails silently due to stale local-agent-mode-sessions 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?

Dispatch sessions appear to start (activity indicator shows) but never produce a response. Messages arrive on desktop, the spinner appears, but no response is ever returned. Persists across relaunches.

What Should Happen?

Claude Desktop should either clean up stale session data on launch or surface a clear error instead of hanging silently.

Error Messages/Logs

Spawn failed: RPC error: failed to mount .../local-agent-mode-sessions/.../agent/memory as .auto-memory: source path does not exist and could not be created: mkdir .../local-agent-mode-sessions: file exists

Steps to Reproduce

1. Set up Dispatch in Claude Desktop (Cowork) and use it normally
2. 2. App or session gets interrupted (crash, force quit, or restart)
3. 3. Relaunch Claude Desktop
4. 4. Open Dispatch and send any message
5. 5. Activity indicator appears but no response is ever returned — hangs indefinitely regardless of how many times you restart

Workaround (confirmed fix):
Run in Terminal:
rm -rf ~/Library/Application\ Support/Claude/local-agent-mode-sessions
Then quit and relaunch Claude Desktop. Dispatch works immediately after.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.81 (Claude Code) / Desktop v1.1.7714

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_