Source-first conversionCMSS13 source is authoritative. Z1 writes depth 0; Z2 and Z3 write mapsAbove at depths 1 and 2. Each CMSS13 path has one AU-14 prototype target. The AU-14 reference map is optional and never supplies output geometry.
Validation boundaryThe browser serializes the handoff into Robust format-7 maps. Load-save/load test the downloaded files through AU-14's pinned RobustToolbox engine before committing them.