[BUG] Claude Opus 4.8 should appear in the extension's model selector, or there should be a setting to manually specify the inference profile ARN.

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?

The VS Code extension does not show Claude Opus 4.8 as an available model when using AWS Bedrock in the eu-west-1 region, despite having confirmed active access to the model and its cross-region inference profile. The /model command is not available in the extension environment (returns "isn't available in this environment"), and there is no manual model override setting in VS Code settings to specify the inference profile ARN directly.

What Should Happen?

Claude Opus 4.8 should appear in the extension's model selector, or there should be a VS Code setting (similar to the CLI's ~/.claude/settings.json) where users can manually specify the Bedrock inference profile ARN to use.

Error Messages/Logs

Steps to Reproduce

Configure Claude Code VS Code extension with AWS Bedrock credentials for account xxx in region eu-west-1
Use profile xxxwith proper SSO authentication
Verify in AWS Bedrock Console that:
Model access for "Claude Opus 4.8" shows "Access granted"
Inference profile eu.anthropic.claude-opus-4-8 exists and is ACTIVE
Try to select Claude Opus 4.8 in the VS Code extension
Observe that Opus 4.8 is not available in the model list
Try running /model opus command
Receive error: "/model isn't available in this environment"
Check VS Code settings for manual model override option
No such setting exists

Verification via AWS CLI:

Confirmed inference profile exists and is ACTIVE

aws bedrock list-inference-profiles --region eu-west-1 --profile xxxx| grep opus-4-8

Returns: eu.anthropic.claude-opus-4-8 with status ACTIVE

Confirmed foundation model access

aws bedrock get-foundation-model --region eu-west-1 --profile xxxxx-model-identifier anthropic.claude-opus-4-8

Returns: modelLifecycle.status = ACTIVE

Claude Model

_No response_

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

VS Code Extension ( 2.1.197 )

Platform

AWS Bedrock

Operating System

macOS

Terminal/Shell

VS Code integrated terminal

Additional Information

Cross-region inference profile confirmed:

{
"inferenceProfileId": "eu.anthropic.claude-opus-4-8",
"inferenceProfileName": "EU Anthropic Claude Opus 4.8",
"status": "ACTIVE",
"models": [
{
"modelArn": "arn:aws:bedrock:eu-west-1::foundation-model/anthropic.claude-opus-4-8"
}
]
}
Full ARN: arn:aws:bedrock:eu-west-1:xxx:inference-profile/eu.anthropic.claude-opus-4-8
Foundation model status:
{
"modelId": "anthropic.claude-opus-4-8",
"modelName": "Claude Opus 4.8",
"modelLifecycle": {
"status": "ACTIVE"
}
}