Core architecture
The Prefrontal Node sits at the center.
Sentinel is not a single model dressed up as a platform. It is an orchestrated system with executive control at the center, workhorse agents beneath it, persistent memory behind it, and tool-driven validation around it.
Executive brain
Prefrontal Node
planning, routing, arbitration, contract freezing, acceptance control
Worker layerWorkhorse agentslocal, LAN, or approved external workers
Memory layerPersistent contexttask history, repo knowledge, fix patterns
Tool layerReality checksbuild, test, lint, patch validation, verification
Model layerProvider fabriclocal endpoints with remote fallback where needed