[Bug] Anthropic API Error 400: Invalid Ephemeral Cache Control Inputs

Bug Description
I started a new session and immediately got an API error 400 about ephemeral cache control inputss.

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.39
• Feedback ID: e2399213-621b-4ead-890c-087edd676232

Errors
API Error: 400

{"type":"error","error":{"type":"invalid_request_error","message":"system.2.cache_control.ephemeral.scope: Extra inputs
      are not permitted"},"request_id":"req_011CY6YBiFCrpz9yX5XXDJkC"}