[BUG] infinite login loop with /extra-usage

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?

Every time that I call the /extra-usage command, I am prompted to log-in.
Upon logging in, it reports a "Login Successful. Press Enter to continue..."
If I press Enter, I am returned to the claude code console with "Login successful" as the only result.
Something seems to briefly pop up but I can't see it.

Using /extra-usage again repeats this exact behavior, including a second prompt to login.

/status shows me correctly logged in to a Claude Pro account.

What Should Happen?

/extra-usage should help me control whether extra usage is allowed.

Error Messages/Logs

No error messages, simply terminates with success.

Steps to Reproduce

1. Run claude
2. Run /extra-usage
3. Choose option 1 to log-in in web browser
4. Authorize access to Claude Code

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.2

Platform

Anthropic API

Operating System

Other Linux

Terminal/Shell

Other

Additional Information

NixOS via the package manager; I don't see any patches or very strange setup in the package https://github.com/NixOS/nixpkgs/blob/aef8bcdfb3ec01e5650b67da9ce9bf25806cc47d/pkgs/by-name/cl/claude-code/package.nix#L3
DEV flag is suspicious

I hope it's irrelevant, but for repro exact packages commit in nixpkgs is 5f02c91314c8ba4afe83b256b02375641221853