Live: Clef answered both probes right in ~0.5 s but at 0.21-0.25 confidence, so the 0.5 floor sent them to the LLM. Expose every confidence and the weakest question; a request may set its own floor (only changes cost); bench.py takes clef@0 for calibration and sends a user agent Cloudflare accepts. Claude-Session: https://claude.ai/code/session_01VDkN7ukK1kXkqov8FaZxva Co-authored-by: Claude <noreply@anthropic.com>