This note provides a minimal dynamical specification for a three-layer evaluation system (Narrative / Capital / Structural). The central claim is expressed as: Truth = temporal phase synchronization across structural layers. We introduce a small set of state variables—phase difference Δφ(t), coupling κ(t), and closure pressure P(t)—and propose the simplest update rules that render the framework dynamically closed. The framework is non-normative and does not claim predictive validation.