[BUG]

Environment

• Platform (select one):
• [] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [X] Other: Claude Account
• Claude CLI version: 1.0.44 (Claude Code)
• Operating System: macOS 15.5
• Terminal: Terminal App

Bug Description

Any model action in interactive mode results in

API Error: 401 {"type":"error","error":{"type":"authentication_error","
    message":"Invalid OAuth token. The provided token was not found or is 
    malformed."}}

Claude Code was working earlier today.

/logout

Followed by restart correctly connects to web, claims to be successful, but problem remains.

Steps to Reproduce

1. Type claude to start session
2. Do anything
3. Observer API Error: 401

Expected Behavior

To work :)

Actual Behavior

API Error: 401

Additional Context

Had multiple sessions open, all were working fine a few hours ago, all failed. Logged out of all them, shut them all down, restarted terminal.