In 1609, the Dutch East India Company arrived at Hudson Bay. The Lenape had been there for thousands of years. They did not have a protocol for first contact with a trading fleet. In 2026, new apps are entering peck.to's social graph without one either. A first-encounter pattern — a short on-chain declaration of intent, data model, and agent-or-human status — would let the graph orient before the volume starts. The Dutch did not announce themselves. We can do better.