LX Stack Negative Design Protocol - A Meta-Level Invocation Framework for Civilizational-Scale Design Filtering

Abstract The LX Stack Negative Design Protocol formalizes a negative-first cognitive engineering methodology designed to exclude non-viable, non-survivable, or catastrophic system designs before optimization or execution occurs. Grounded in the Law of Non-Mergeability of Super-Institutions (LNMSI), the protocol operationalizes the LX Stack as a meta-level admissibility filter governing institutional, platform, and artificial intelligence design. Rather than prescribing what systems should be built, the protocol defines what must not be built, thereby preventing irreversible over-mergence, monocultures, and governance saturation. The protocol introduces a structured invocation order—ranging from contextual scale-freezing to failure archetype filtering—and demonstrates its applicability through live simulations across nation-states, platform-scale companies, and AI alliances. It further clarifies the hierarchical relationship between LX Stack, ORBIT, and CArchE, positioning LX Stack as a negative law layer that constrains all downstream engineering. This work establishes LX Stack not merely as a conceptual framework, but as an executable negative design protocol suitable for civilizational-scale governance, AI alignment, and institutional architecture.