[BUG] Error: Claude Code process exited with code 1.Use bedrock API

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 am using the API provided by AWS Bedrock and encountering the following error when using the Claude Code plugin in VS Code: Error: Claude Code process exited with code 1. I have tried rolling back the version, but the issue remains unresolved.

What Should Happen?

In normal circumstances, this error should not occur.

Error Messages/Logs

Error: Claude Code process exited with code 1

Steps to Reproduce

Claude code version: 2.0.31
VS code version: 1.105.1
setting.json:
{"claudeCode.environmentVariables": [
{ "name": "CLAUDE_CODE_USE_BEDROCK", "value": "1" }, // Switch to Bedrock
{ "name": "AWS_REGION", "value": "us-east-1" }, // Replace with the region where you have Claude enabled//
{ "name": "AWS_PROFILE", "value": "default" }, // If using aws credentials, you can remove the comment and replace with your profile
{ "name": "AWS_BEARER_TOKEN_BEDROCK", "value": "***************" }, // Change Value to your API KEY// (Optional) Explicitly specify the Bedrock Inference Profile / model to use
{ "name": "ANTHROPIC_MODEL", "value": "us.anthropic.claude-sonnet-4-20250514-v1:0" },// (Optional) Maximum output token limit to prevent long responses from being truncated
{ "name": "CLAUDE_CODE_MAX_OUTPUT_TOKENS", "value": "4096" }],
}

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.0.31

Platform

AWS Bedrock

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

_No response_