Drives the carved /plan-ceo-review AUQ N=3 times and fails if any format
element appears in one run but not another, or substance craters. Targets the
"fine one run, broken the next" failure class a single snapshot can't see.
Result: 3/3 stable, 7/7 + substance 5 every run. Periodic tier.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Garry Tan