Abstract
This manuscript consolidates the UFO pattern’s core specification into a two-layer form for workshop-scale review: a pattern layer that specifies claims independent of any substrate, and an evidence layer that catalogs preregistered expectations and probes. The Umwelt-Frontier Orchestrator (UFO) is a multi-agent orchestration pattern built from three structural ingredients: (i) role-specialized agents running over cross-vendor CLI pathways, (ii) strict Pareto dominance as the only admissibility filter, and (iii) no declared terminal target state. The resulting mechanism, exclusion-topology, defines what is inadmissible rather than what is finally “best,” allowing the system to discover productive solutions before declaring completion.
The pattern intentionally limits claims to architectural behavior that does not depend on a particular implementation. A separate one-substrate reference implementati