Unclear usage of actor_id in AgentCoreMemorySessionManager implementation.

[akshseh]

Issue

Session manager implementation -> https://github.com/aws/bedrock-agentcore-sdk-python/blob/main/src/bedrock_agentcore/memory/integrations/strands/session_manager.py
states

 event = self.memory_client.gmdp_client.create_event(
            memoryId=self.config.memory_id,
            actorId=self._get_full_session_id(session.session_id),
            sessionId=self.session_id,
            payload=[
                {"blob": json.dumps(session.to_dict())},
            ],
            eventTimestamp=self._get_monotonic_timestamp(),
        )

Here the actorId is assigned Session information whereas the actorId should be defined by the AI Developer and not updated/changed by the SessionManager.

Potential Solution

We could potentially make use of AgentCore Memory metadata feature to add the session metadata.