[BUG] Gmail + Google Calendar connectors show "Connected" in UI but never trigger OAuth, no Google account linked

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?

Gmail + Google Calendar connectors show "Connected" in UI but never trigger OAuth, no Google account linked
All tool calls return "requires authentication"
Logged in with Google — still fails
Connectors intermittently disconnect from sessions entirely

What Should Happen?

It should allow me to access my gmail, or at least prompt for Auth

Error Messages/Logs

Steps to Reproduce

Just ask Claude to check the connection. I have disconnected, logged out, logged back in, rebooted, removed connector, readded

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

1.15962.1

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_