[BUG] Claude for Office (PowerPoint/Excel), Mac Broken

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?

Claude will not work in PowerPoint or Excel. I've come to depend on this functionality to do my job. Continue to get the following error when trying to use Claude in PowerPoint and Excel.

<img width="660" height="198" alt="Image" src="https://github.com/user-attachments/assets/eb53e560-dd6e-4963-b575-de848de27cf5" />

What Should Happen?

It should respond and update my files, based on my prompts.

Error Messages/Logs

Request ID: req_011CbkgCfxo1jqQ6Bx7kjWyb
Error: tools.30.custom.input_schema: int too big to convert
Build: 412fb45ca80516bdc44e65ede0702088d4c9422c
App: Claude for Office (PowerPoint/Excel), Mac
Status: Cache clear and add-in reinstall didn't resolve it

Steps to Reproduce

n/a

Claude Model

Not sure / Multiple models

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

4beea89864a17a14cb1bb7a324487a0dd593a273

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_