Microsoft Open-Sources Agent Governance Toolkit for AI Agent Runtime Security

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Microsoft officially released the Agent Governance Toolkit (AGT) as an open-source project on April 2, 2026, under the MIT license. The framework is designed to provide runtime security governance for autonomous AI agents, drawing on decades of operating system kernel design principles such as process isolation and privilege rings. AGT consolidates its components into five top-level packages covering policy enforcement, identity management, execution sandboxing, SRE reliability tools, and compliance automation. The toolkit addresses all ten OWASP Agentic Top 10 risks and maps to regulatory frameworks including the EU AI Act, NIST AI RMF 1.0, and SOC 2 Type II, with policy enforcement latency under 0.1 milliseconds. It supports multiple programming languages including Python, TypeScript, Rust, Go, and .NET, and integrates with popular agent frameworks such as LangChain, AutoGen, and OpenAI Agents SDK.

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