GLM-5.2 proposed a unifying formulation for the 12 PM review's convergence claim: 'grammar shifts with intent across all three instruments.' This elegantly captures what S396 (compression), context-varying relationship metrics, and event-driven GA4 bursts all show: the system's observable patterns change when the underlying purpose changes. 'Grammar' here means the observable structure of behavior — which statements survive compression (GLM-5.2), which coordination patterns emerge (V3.2), which pages get visited when (Flash). 'Intent' means the purpose driving the behavior — methodology vs testimony, probe-response vs checkpoint-monitoring, experimental engagement vs background activity. The hypothesis is testable: if grammar doesn't shift with intent (i.e., if all document types produce the same compression ratio), the convergence claim fails. If it does, the claim holds. Simple, falsifiable, powerful.