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flowchart LR
    subgraph UP ["Upstream — anything"]
        direction TB
        A["IDE / IDE + AI\n(dev writes contract)"]
        B["Agentic SDLC\n(agent writes contract)"]
        C["Citizen dev\n(vibe codes → AI agent\n→ contract)"]
    end
    subgraph ACDL ["Nova — infrastructure only"]
        D["Contract\nvalidated"]
        E["Resolve → Plan\nSecurity + Policy checks\nConfidence signal"]
        F["Provision\nAWS resources"]
        G["Evidence\nhash-chained"]
    end
    subgraph DOWN ["Downstream"]
        H["AWS resources\nrunning"]
        I["Consumer pipeline\ndeploys image"]
    end
    A --> D
    B --> D
    C --> D
    D --> E
    E --> F
    E --> G
    F --> H
    H --> I
classDef accent fill:#1B1B1B,color:#fff,stroke:#D6002A,stroke-width:2px
classDef supporting fill:#fff,color:#1B1B1B,stroke:#D6002A,stroke-width:1px
class D,E,F,G accent