Ability to inspect task queues

I can’t find a way to inspect current state of particular task queue. It would be nice to have a way to get information about the number of scheduled tasks in particular queue, for example for find out bottlenecks, for autoscaling workers (start additional workers when number of scheduled tasks great than some threshold, and stop workers when queue is empty).
I’m just starting to learn the platform, if already exists some abilities to solve such problems, please point me where can I find more about it.

+1 Same request.