What is agent sponsor?
In short:An agent sponsor is the person who vouches for an agent's existence and purpose. Microsoft Entra Agent ID uses the word for the human attached to each agent. In practice a sponsor and an owner often overlap, though some programmes separate business sponsor from technical owner.
How does it work?
The sponsor is recorded on the agent object. Lifecycle workflows ask the sponsor to confirm the agent is still needed.
What does it look like in practice?
In Entra, a team lead is set as sponsor for a scheduling agent and receives the periodic review request.