Hardcoded limit to checkpoints retrieval for AgentCore LangGraph Saver

[michaelnchin]

Discussed in #709

^{Originally posted by ltoniazzi October 20, 2025}
Seems that the get_events method defaults to 100 limit of events (here).

But it's always used without passing the limit param here.

So the default limit is always used and the user has no control over it.

Question:
Is this intentional? Because it seems that a thread_id memory with more than 100 nodes executions will be incomplete when retrieved from AgentCore.

[ltoniazzi]

I think that if you plan to keep the limit parameter, then there should be a warning here if the pagination stops because of limit and not next_token:

if next_token and (limit is not None and len(all_events) >= limit)
    logger.warning("Might be missing checkpoints...")