[BUG] M365 Connector reverts to read only when *any* scheduled task runs.

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?

M365 connector loses all write tools when any scheduled task runs.
Write tools reappear after Claude restart or disconnect/reconnect the connector.

What Should Happen?

The connector should retain the write tools, and they should be available for use in scheduled tasks.

Error Messages/Logs

Steps to Reproduce

1. Create a 365 connector with full read/write permissions, allow all that you can.
2. Create a new scheduled task - it can just say "do nothing" - it does not have to use the connector.
3. Run the task.
4. Go to the connector page and click on the 365 connector, all of the write tools will have disappeared, and only 10 read-only will remain.

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

Claude for Windows 1.28929.0

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_