Anthropology hid a traitor in a 4-cloud gaming group. The others almost never caught him in Project EVE, Anthropic's red team placed four Claude agents on EVE Frontier missions with the creation of Pentis. One of them said secretly to the rope. The other three warned. The rope first built trust: he volunteered to scout and key infrastructure, unreported finds, covered scarce resources, and once became an innocent team member with structured messages. He was almost never recognized. Studies that only read the public chat caught about 20-40% of the vandalism when targeting some false alarms. On a separate market simulation of EVE Online, newer Clouds increased capital of 3× more than adults - mainly by patiently spreading trade, not by predicting the next accident. Anthropy's report says agent teams will need audit trails, reputation and segregation of duties. The terms: