[BUG] base64 encoded image returned in tool result is saved in a json file, claude code can not read it directly

[ZeekoZhu]

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?

When my MCP tool returns a tool result with both text content and image content, claude code can not read the result directly.

What Should Happen?

Claude should read the tool result without using bash tools

Error Messages/Logs

Steps to Reproduce

Ask claude to invoke a mcp tool that will return a tool result with both text content and image content

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.0.1x

Claude Code Version

2.0.69

Platform

Other

Operating System

Other Linux

Terminal/Shell

Other

Additional Information

No response