Guardian agent – Definition & Meaning

Definition of guardian agent

: an AI-based supervisory system or agent that monitors other AI agents and helps keep their actions within defined goals, permissions, policies, and safety boundaries, for example by investigating behavior, requesting approval, or triggering containment
- The guardian agent flagged an unexpected request for customer records and asked the security team to review the evidence.
- A guardian agent recommended suspending the worker agent, while a separate access-control service enforced the suspension.

Origin & history

Gartner described guardian agents as a technology category in June 2025 and published a market guide in February 2026. In October 2026, Microsoft announced Guardian Agents within Project Perception for supervising enterprise AI agents.

Editorial references

Sources & further reading

3 sources

Gartner Predicts that Guardian Agents will Capture 10-15% of the Agentic AI Market by 2030 Gartner · 2025-06-11
Market Guide for Guardian Agents Gartner · 2026-02-25
Agents are your newest insiders. Security must move at their speed. Microsoft · 2026-10-19

Test yourself

Which of these is the meaning of guardian agent?

Related terms

agent containment the use of enforced technical boundaries to limit what an AI agent can read, change, execute… reference monitor an external security mechanism that intercepts an AI agent's attempts to access data or take… agentic SOC a security-operations-center model in which AI agents coordinate multi-step threat detection… orchestrator agent an AI agent that coordinates a multi-agent workflow by breaking a goal into subtasks… AI observability the practice of collecting and connecting traces, metrics, logs, evaluations, and other… human-on-the-loop describing an AI oversight arrangement in which a system operates autonomously while a person…

Cite this entry

"Guardian agent." AI Dictionary, Dadgogo, https://dadgogo.com/dictionary/guardian-agent/. Accessed 22 Oct. 2026.