GAAT closes the observe‑but‑do‑not‑act gap in multi‑agent AI. Existing tools like OpenTelemetry capture inter‑agent interactions but leave governance to post‑hoc analytics. Apple proposes a reference architecture that links telemetry streams directly to policy enforcement engines. Practitioners can now detect and correct violations in real time, reducing downstream damage. This approach also streamlines compliance audits and accelerates deployment cycles.