Lexicon of the Interaction Boundary: Terminology for Substrate-Level Governance of the Eliza Effect

This lexicon defines the terminology introduced in support of the three-surface diagnostic model for the Eliza Effect (Truong, 2026). It provides precise definitions for governance invariants, failure modes, escalation patterns, severity tiers, and analytical concepts used in the substrate-level governance of AI-human interaction boundaries. This document serves as a companion reference to the parent paper and establishes terminological priority for the conceptual vocabulary of the interaction boundary discipline.