[BUG] Bedrock models with global. prefix get raw model ID as display_name in status line JSON

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 using AWS Bedrock with global. prefixed model IDs (cross-region inference), Claude Code sets the status line display_name to the raw model ID string rather than a friendly name. For example, display_name is set to "global.anthropic.claude-opus-4-6-v1[1m]" instead of something like "Claude Opus 4.6".

What Should Happen?

The display_name should be a user-friendly name, consistent with how non-Bedrock models are handled.

Error Messages/Logs

Steps to Reproduce

a. Configure Bedrock with a global. model: "ANTHROPIC_DEFAULT_OPUS_MODEL": "global.anthropic.claude-opus-4-6-v1[1m]"
b. Start a session and inspect the status line JSON
c. Observe: "model": {"id": "global.anthropic.claude-opus-4-6-v1[1m]", "display_name": "global.anthropic.claude-opus-4-6-v1[1m]"}

Claude Model

Not sure / Multiple models

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.47

Platform

AWS Bedrock

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_