The requirement is a cluster with private capabilities, which is what the
proxy reports and what the dashboard renders as supports_private. Framing
the refusal around an embedded proxy named one way of getting there as if
it were the requirement, and told an API user to fix the wrong thing. The
message, the comments and the test fixtures now speak of private
capabilities throughout.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Sa3DsBDP3VciAi4PPG17L6