There was another post which mentioned this.
The agg series will be updated if they are used in a live strategy. I created a simple live strategy that is set to auto rebalance every week and I added a rule like this for each of my agg series which I want updated automatically: Close(0,GetSeries("staples vs discresionary")) or 1
The only potential issue is the execution order. I don’t know if there is a way to guarantee that the live strategy above would be executed (and update the agg series) before the agg series was used by your ranking system. If that ends up being an issue and nobody offers a solution, there are API endpoints for rebalance and commit of a live strategy, but then you also need to write something to execute the script each week. Seems like a lot of work, but I mentioned it since you asked about the API.