From the command line you can run the following to delete an Agent instance with comp_id of AGENT_COMP_ID

echo '{"comp_id": "AGENT_COMP_ID"}' | /opt/intwine/app/send delete_agent

What this does is tells the Gateway agent to delete the agent with the specified comp_id.  The /opt/intwine/app/send script uses the Application Framework to send a direct message to a specific agent.  The first parameter is the message type (in this case delete_agent).  The second parameter is the comp_id of the agent to send the message to.  If not specified, it will default to the Gateway agent.

The result of the direct message is a JSON object.  The value of the "success" parameter will say if the command was executed successfully.