The Sentinel Class is GSC's internal fleet of one million duty-derived AI Agents on the Knowledge Graph manifest: a separate registry from the Carrier Class revenue fleet, not offered for sale.
Every Sentinel derives from a duty on the Knowledge Graph. Allocation by formula, materialized by ladder.
Sentinel Class and Carrier Class never mix: different registries, different purposes, one estate.
Sentinels are the estate's standing audit: registry-proven, append-only, always on.