[BUG] when session context reach 100%,no auto compact

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?

occasionally on MacBook Air, when session context reach 100%,no auto compact

<img width="759" height="82" alt="Image" src="https://github.com/user-attachments/assets/467d196c-87f3-4e55-97b3-adccf3ac5265" />

What Should Happen?

when session context reach 85%,should auto compact

Error Messages/Logs

Steps to Reproduce

not sure how to reproduce, other session auto compact normally

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.162

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_