Use the command:
agentcore invoke "{'prompt': 'Tell me about roaming activations'}"

The Agent will respond based on the data you deployed (database + logic in your code).
After the first question, send another related one — for example:
agentcore invoke "{'prompt': 'Activate it for Vietnam'}"

Then ask:
agentcore invoke "{'prompt': 'which country was i referring to'}"

If the Agent responds correctly and remembers the previous information → this confirms the Memory is working and AgentCore is maintaining context across invocations.
AgentCore behaves as expected in this demo.