Policy Cards: Machine-Readable Runtime Governance for Autonomous AI Agents
Juraj Mavračić
TL;DR
This work introduces Policy Cards as a machine-readable, deployment-layer governance artifact that binds autonomous AI agents to explicit, auditable constraints. By formalizing a JSON Schema-based representation of operational rules, obligations, and evidentiary requirements, the approach enables automatic validation, versioned stewardship, and integration with runtime enforcement and continuous auditing. The authors provide a validation toolchain, a crosswalk to NIST AI RMF, ISO/IEC 42001, and the EU AI Act, and domain exemplars in finance, healthcare, and defense to demonstrate domain generality and regulatory readiness. The framework supports a Declare-Do-Audit lifecycle, enabling stress testing, multi-agent governance, and cryptographic extensions for confidential, verifiable assurance, with a clear path toward scalable, auditable, and ethically guided autonomous systems.
Abstract
Policy Cards are introduced as a machine-readable, deployment-layer standard for expressing operational, regulatory, and ethical constraints for AI agents. The Policy Card sits with the agent and enables it to follow required constraints at runtime. It tells the agent what it must and must not do. As such, it becomes an integral part of the deployed agent. Policy Cards extend existing transparency artifacts such as Model, Data, and System Cards by defining a normative layer that encodes allow/deny rules, obligations, evidentiary requirements, and crosswalk mappings to assurance frameworks including NIST AI RMF, ISO/IEC 42001, and the EU AI Act. Each Policy Card can be validated automatically, version-controlled, and linked to runtime enforcement or continuous-audit pipelines. The framework enables verifiable compliance for autonomous agents, forming a foundation for distributed assurance in multi-agent ecosystems. Policy Cards provide a practical mechanism for integrating high-level governance with hands-on engineering practice and enabling accountable autonomy at scale.
