[BUG] 400 error if you send just an image to claude code via remote control, then stuck in this cycle forever

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?

[BUG] 400 error if you send just an image to claude code via remote control, then stuck in this cycle forever

Steps: attach an image, send with no text
Error: 400 invalid_request_error: messages: text content blocks must be non-empty
Request ID: req_011CaeDEVrkP54DkPzTNs6YL

What Should Happen?

either accept just an image or only fail once rather than continuing to send 400s on subsequent calls

Error Messages/Logs

Steps to Reproduce

Worth including in the report:

Steps: attach an image, send with no text
Error: 400 invalid_request_error: messages: text content blocks must be non-empty
Request ID: req_011CaeDEVrkP54DkPzTNs6YL

Claude Model

Not sure / Multiple models

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.123

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_