[BUG] Empty chat, single 'hi' message consumes 47.7k tokens

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?

I've used different providers (omni-route, claudehub). Everywhere I saw abnormal token consumption for just one "hi" message. Everything worked fine up to a certain point, but then this happened.The session is completely empty, started from 0

What Should Happen?

-

Error Messages/Logs

-

Steps to Reproduce

-

Claude Model

Other

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.169

Platform

Other

Operating System

Other Linux

Terminal/Shell

Other

Additional Information

<img width="987" height="572" alt="Image" src="https://github.com/user-attachments/assets/d556ffc2-da1f-46f9-a77a-e32de3060132" />

<img width="987" height="558" alt="Image" src="https://github.com/user-attachments/assets/c7696b64-d8ea-4c01-9845-5e9e52cc2c27" />

<img width="987" height="224" alt="Image" src="https://github.com/user-attachments/assets/91019223-81b3-40f1-a4a8-2f66cc722917" />