sequenceDiagram
  participant O as Goal Orchestrator
  participant L as Local Worker
  participant S as H4 Security
  participant C as Cloud Reviewer
  participant A as H5 Audit

  O->>L: Objective and governed context
  L-->>S: Primary proposal
  S->>C: Safe draft for independent review
  C-->>O: Critique and refined outcome
  O->>A: Certified final decision
  A-->>O: Audit hash and status