agent-governance-toolkit

About

The Agent Governance Toolkit (AGT) is an open-source security middleware by Microsoft for autonomous AI agents. Acting as a deterministic execution kernel, it intercepts and evaluates every tool call, resource access, and inter-agent message against strict policies prior to execution. By completely bypassing prompt-based safety logic, it ensures sub-millisecond, hallucination-free enforcement. AGT brings zero-trust identity management, hardware-style privilege ring sandboxing, SRE capabilities, and an MCP security gateway. It seamlessly integrates with 20+ frameworks like LangChain, Semantic Kernel, and AutoGen to guarantee enterprise-grade safety and auditable compliance.

Features

• Deterministic Policy Engine
• Zero-Trust Agent Identity
• Execution Sandboxing Rings
• Agent SRE Observability
• MCP Security Gateway

Supported Platforms