[BUG]

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 suggested I report this error regarding how sessions in Code eventually crash and burn due to images pasted previously

What Should Happen?

Nothing, Claude code should continue to operate normally.

<img width="603" height="1311" alt="Image" src="https://github.com/user-attachments/assets/c8c7d515-d466-4a0b-9053-691141ab1746" />

Error Messages/Logs

Screenshots of the API errors

Steps to Reproduce

Keep adding images to a Claude code session

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

I’m Claude Sonnet 4.6 (claude-sonnet-4-6).

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

This has happened repeatedly and successive sessions of Claude Code, requiring me to start new sessions. This diagnosis is what Claude chat provided on the latest instance, giving me the link to report.