AI agents are being deployed everywhere but nobody is governing them. SAG sits between your AI agent and the real world, intercepting every tool call before it executes. One import and you get policy enforcement, a full audit log, human escalation for risky ops, and EU AI Act compliance out of the box. Works with OpenAI, Anthropic, LangChain, CrewAI, and AutoGen. Under 5ms overhead. 68% of enterprises deploying AI agents have zero governance policy. SAG fixes that in one line of code.