Constitutional Execution Infrastructure CEI Book Chapter 13
Constitutional Execution Infrastructure

Governance SDK

Building reusable constitutional components for applications, services, and AI systems.

Chapter 13 • Engineering Runtime Governance for Autonomous Systems

Governance as a Reusable Capability

Constitutional governance should not be rewritten for every application. A Governance SDK provides standardized building blocks that embed constitutional execution into diverse systems while maintaining consistent runtime behavior.

The SDK is the constitutional interface between application logic and governed execution.

Objectives

Application Governance SDK Decision Engine Ledger Replay

Core SDK Modules

ModulePurpose
Authority ProviderResolve identities and delegated authority.
Policy ProviderLoad versioned constitutional rules.
Evidence ProviderCollect and validate supporting evidence.
Decision APIExecute runtime governance evaluations.
Ledger ClientWrite immutable constitutional records.
Replay ClientReconstruct execution history.

Design Principles

Reference Interfaces

The SDK should expose simple interfaces that allow applications to submit requests for constitutional evaluation without needing to understand the internal governance engine. This separation improves maintainability and enables governance evolution independently of application code.

Chapter Conclusion

A Governance SDK makes constitutional execution portable. By encapsulating authority evaluation, evidence handling, policy resolution, and immutable recording behind stable interfaces, governed execution can be adopted consistently across applications, services, and AI agents.

Next Chapter: Multi-Entity Governance — Coordinating constitutional execution across organizational boundaries.

Engineering Evidence

Evidence and verification layer

This document forms part of the CEI publication record. Supporting evidence is organized through the engineering-evidence archive, specifications, architecture documentation and replay verification materials.

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