[BUG] High token usage since last week

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?

Without any changes onto my Claude Code usage I've noticed high token usage since 1 week. I'm really disappointed than since saturday, june 29th I've already burned 67% or my weekly usage.
I was working with opus 4.8 but decreased to Sonnet 4.6 today in order to see what happen. I'm on Pro plan. Due to this, I have to reduce my usage.

<img width="400" height="185" alt="Image" src="https://github.com/user-attachments/assets/bf0aac76-62c8-458a-ada2-427aad01f008" />

What Should Happen?

I would've burned less token cause I didn't change my daily usage.

Error Messages/Logs

Steps to Reproduce

Just run Code and glance at the token usage limit.

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

Opus 4.7

Claude Code Version

Claude Desktop v1.15962.1

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Just asked Claude --version

<img width="930" height="438" alt="Image" src="https://github.com/user-attachments/assets/b3f149bf-9f5f-48ca-b860-022a5e4818af" />