Constitutional Agentic Compilation

Contemporary software production remains dominated by imperative implementation, where human-authored code is the primary artifact and specifications are secondary, informal, or lossy. This paper introduces Constitutional Agentic Compilation (CAC), a paradigm in which the primary artifact is a constitutional specification--a Codex encoding invariants, configuration space, and admissibility conditions--and executable systems are derived through bounded-discretion transformation. CAC departs from both classical compilation and unconstrained program synthesis. Unlike traditional compilers, which perform deterministic transformations over fully formalized inputs, CAC operates on semantically structured specifications that deliberately preserve degrees of freedom. Unlike open-ended synthesis, CAC constrains the realization space through explicit invariants, ablation-tested boundaries, and embedded reasoning scaffolds. The result is a compilation process in which agents--human or artificial--exercise controlled discretion within a constitutionally defined envelope. Correctness in CAC is defined not by output identity but by invariant preservation and gate-test satisfaction, yielding equivalence classes of realizations rather than singular outputs. This enables multiple independent agents to produce structurally distinct yet constitutionally equivalent systems from the same specification. We formalize CAC as a layered transformation pipeline--Human Intent -> Constitutional Codex -> Canonical MCIR -> Agentic Realization -> Executable System--and argue that it represents a new intermediate computational layer between intent and execution. We further show that CAC aligns with governance-oriented frameworks such as semantic hashing, invariant-based verification, and epistemic constraint systems, including Governed Context & Memory (GCM) .