[BUG] API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"{\"message\":\"messages.3.content.0.tool_result.content.0.type: Field required\"}"},

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?

After upgrade to latest Claude Code, I can't use any commands of Claude Code, It shows API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"{\"message\":\"messages.3.content.0.tool_result.content.0.type: Field required\"}"},"

What Should Happen?

If I downgrade to v2.1.63, it turns right

Error Messages/Logs

API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"{\"message\":\"messages.3.content.0.tool_result.content.0.type: Field required\"}"},"

Steps to Reproduce

1. claude command
2. /init
3. it turns error

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

v2.1.69

Platform

Other

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_