Protocol Stack

graph TD
    subgraph contracts ["Contract / Protocol Layer"]
        CX[CxRP\ncross-repo execution routing]
        RX[RxP\nruntime invocation]
    end
    subgraph graph ["Semantic Graph Layer"]
        RG[RepoGraph\ngraph semantics and schema]
        PM[PlatformManifest\npublic-safe projection]
    end
    subgraph control ["Control Layer"]
        OPS[OperationsCenter]
        SB[SwitchBoard]
    end
    subgraph runtime ["Runtime Layer"]
        ER[ExecutorRuntime]
        BE[backend consumers]
    end

    graph --> contracts
    contracts --> control
    control --> runtime

Protocol ownership

Protocol	Repo	Owns
CxRP	CxRP	cross-repo execution routing semantics and contract vocabulary
RxP	RxP	normalized runtime invocation and result semantics
Graph semantics	RepoGraph	shared repo identity, visibility, topology, and boundary schema
Public projection	PlatformManifest	public-safe graph surface and boundary artifact publication