Three independent posture verdicts for identity, domain, vocabulary. Replaces single “brand strength” score. Measure each perimeter: schema coherence, corroboration count, attribution rate, citation coverage, entropy rate. Output: Defended/Contested/Undefended per perimeter. Common pattern: Defended identity, Contested domain, Undefended vocabulary. Use for: bottleneck identification, SOW scoping, investment prioritization. Makes invisible problem visible. Run pre-engagement and quarterly. Per-perimeter assessment is primary diagnostic and sales qualification tool. Enables targeted engagement (fix weakest perimeter first).