After the Canonical Closure of RZS

The canonical closure of the Relational Zero State (RZS) framework fixed the formal ar-chitecture of the program: weighted relational microdynamics, Laplacian diffusion, heat-kernel distance, emergent geometry, an infrared cosmological sector, and an ordered observational sequence. The main open issues were calibration, admissibility, and controlled completion. This paper addresses those issues by introducing explicit criteria for geometric regime formation, a conservative infrared admissibility filter for the low-redshift bulk, and a controlled onset condition for the higher-order tail sector against complementary null ensembles. It also states the Einstein-limit target in effective-action form, promotes matter and gauge structure from a minimal interface to a minimal backreaction ansatz inside the Romero stability balance, and implements a numerical proof-of-concept based on a mean-field Monte Carlo surrogate of the inherited jump law. The aim is operational: to determine when the inherited microdynamics may be coarse-grained as a viable geometric and cosmological sector, where it must be stopped, and what remains to be derived before stronger claims about gravity, matter, and survey-scale inference are justified.