Currently there doesn't seem to be a way to set up custom alerts and monitoring on specific metrics such as when the size of documents returned form a query exceeds a certain limit, even though that information is available through the Profiler when looking at query samples.

It would be very useful to be able to either configure these metrics to be sent to an external service like Loggly for better monitoring and alerts or allowing to create customized alerts/webhooks within Atlas that would be triggered based on a custom-specified condition.