Transferring state across sdks sound very cool, how do you achieve that? With all the workflows as code frameworks (like say, Temporal), this is what I imagine

Transferring state across sdks sound very cool, how do you achieve that? With all the workflows as code frameworks (like say, Temporal), this is what I imagine to be a shortcoming. With regular services + state in database implementations, you can query the database separately. While with a temporal workflow, you can't cleanly figure out where a particular workflow run is atm since the state is an append only stream of events?