A formal diagnostic instrument that produces three independent posture verdicts (Defended / Contested / Undefended) for the three sovereignty perimeters — identity, domain, and vocabulary — rather than a single composite posture label. The most common real-world condition is Defended on identity, Contested on domain, and Undefended on vocabulary simultaneously; a single posture label obscures the vulnerabilities and produces undifferentiated investment. The per-perimeter assessment identifies the constraining bottleneck before engagement begins, enabling targeted investment. The critical sales and diagnostic framing: most prospects are Defended on identity, Contested on domain, Undefended on vocabulary — and don’t know it.