We could use an entity that would output the content of the network, or make the network readable by red and green wires, that would help building smarter bases.

Also see https://github.com/year6b7a/item-network-factorio-mod/issues/31.

This is on my radar but lower priority than some other tickets. What's your use case for being able to read network contents with circuits?

Stop sending rockets when we hit the buffer ammount of resources. The rocket will keep being sent even if the output is clogged since we can't connect a wire to the silo, so I would like to read the network content to disable the inserter.

In this case I buffer 2K space science in the Network Chest coming off the rocket and only insert a satellite when the chest's buffer is below 1K. Would that work for you too?

You can already connect circuits to Network Chests but the circuit reads buffer contents instead of the entire network contents.

I c, you can only read buffer value... Would be nice to be able to read the network so we could make a nixie tube display of the contents