# Microsoft ACS: Open Standard for AI Agent Governance

> Source: <https://byteiota.com/microsoft-acs-agent-control-specification/>
> Published: 2026-06-20 03:17:12+00:00

Every team shipping AI agents in production is solving the same governance problem from scratch: what can this agent actually do, when does a human need to step in, and what gets logged when something goes wrong? Most teams handle this with custom middleware that works for one framework and breaks the moment they switch. Microsoft’s Agent Control Specification (ACS) is a direct response to that: an open, vendor-neutral standard for enforcing deterministic policy at five points in the agent lifecycle, portable across every major framework, and available to install today. What ACS Is (and What It Isn’t) ACS is […]

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