The 7 layers
Status: stub. Day 4 deliverable — diagram + per-layer detail.
| Layer | Component | Owner agent |
|---|---|---|
| L−1 | Edge Defense Plane (R1–R6 rate limiting, body-size, anonymous block) | Cerberus |
| L1 | Athena — policy compiler / linter | Athena |
| L2 | Nyx — decision engine (sync fast path + async deep path) | Atlas |
| L3 | Hermes — CLI / SDK (this site documents L3) | Hermes |
| L4 | Judgment UI — human override surface for ESCALATE_TO_HUMAN | CEO |
| L⊥ | Integrity Plane — Ed25519 signatures, Merkle trees, OpenTimestamps | Themis |
| L0 | Stripe billing — three-axis metering | Plutus |
Source of truth: Blueprint v4.0 §2.1.