AI Governance Before Intelligence A Pre-Execution Substrate for Deterministic Refusal, Authority Validation, and Continuity Preservation Version 0.9.8.4

Abstract — Elyon-Sol v0.9.8.4 CANONICAL Modern AI and policy-driven systems prioritize correctness, performance, and compliance, yet they often overlook a foundational question: Should this interaction occur at all? Elyon-Sol is a governance-first substrate operating prior to policy evaluation or execution. It enforces deterministic refusal based on authority (AC³), coverage (T²⁶), and continuity (CCS), with failure constructs including CDD, SAP, PAD, and ILT. Version v0.9.8.4 finalizes specification consistency and structural clarity while preserving strict invariant minimality. Key refinements include: Alignment of the lightweight formal model with the evaluation function (consent folded into AC³) Explicit operational examples of invalid state transitions for CCS Strengthened requirements for the Governing Manifest (deterministic, versioned, integrity-verifiable) Consistent scope language and cross-section alignment No new invariants, decision paths, or execution behaviors are introduced. The admissibility boundary remains unchanged: if any invariant fails, the interaction is refused. Elyon-Sol v0.9.8.4 is a mature deterministic governance specification for pre-execution admissibility. It provides clear formal definitions, operational constraints, and worked demonstrations sufficient for implementation while remaining minimal and honest in scope.