A compression headset came with the frame, however I installed my old headset (with a few cheap carbon spacers I got off Amazon) since I'm using my old fork that has a starnut.  This is going to change, I've just purchased the Granite Stash multi-tool that will go in the steerer tube.  I looked at OneUp but the only version I that would work is the original EDC tool that requires the steerer tube to be threaded.