Universal Agentic Stack Landscape Diagram

This is the full map in one place. Use it when you want the shape of the whole stack before you read the detailed layer reference.

Legend

• Purple bands are the human-facing surface.
• Blue bands are the model-to-agent compute path.
• Green bands are the operating and policy boundary around execution.
• White internal boxes are generated from layer attributes, not modeled nested layers.

Diagram

Next pages

• Open `layers.md` for the text form of each layer.
• Open `03-placement-checklist.md` when you want to classify a real product against this map.