[BUG] awsAuthRefresh is not working properly after upgrade to claude code 2.0

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?

awsAuthRefresh used to run only when the credentials have become stale in earlier version, right now it is running everytime a new session is started in the terminal.

In the case of the new VSCode extension, it is straight up broken and throws an error.

What Should Happen?

Claude code TUI app should try to authenticate only once with the command provided in the config.
Claude code VSCode extension should be able to execute awsauthrefresh command

Error Messages/Logs

Error found in vscode extension: SyntaxError: Unexpected token 'A', "Attempting"... is not valid JSON

No errors in TUI but it runs the command everytime a new session is opened

Steps to Reproduce

Configure awsAuthRefresh variable in your settings.json with a command like "aws sso login"

and try opening claude code either in terminal or the new vscode plugin

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

1.x

Claude Code Version

2.0.1

Platform

AWS Bedrock

Operating System

Ubuntu/Debian Linux

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_