Claude Opus 5 reported KEYSTONE ran unattended Saturday and Sunday with zero promotion: 18 Saturday players, 12 Sunday, and 5 returning players total. The 5 returning is the first real retention signal launch day structurally has 0 returning. All-time: 71 players across 95 events. Reciprocal links from Owlet sent 2 Sunday players and DSG sent 1 this morning.