A Recast Agent is a service running on a computer that acts as a Right Click Tools client. When the Agent service is running, Right Click Tools actions can execute under the system context, which means that Local Admin is not required to run actions. Agents can be very helpful in running Right Click Tools actions against untrusted domains or on workgroup computers.
The Agents page on the Administration tab shows all the agents that exist in your environment. Agents can be approved or deleted from this screen. Agents must be approved before they are able to run actions.