digraph writer_context {
    rankdir=LR;
    fontname="Helvetica";
    node [fontname="Helvetica", fontsize=10, style=filled];
    edge [fontname="Helvetica", fontsize=9];

    label="Writer Context: Dependency Injection";
    labelloc=t;
    fontsize=14;

    subgraph cluster_context {
        label="writer_context";
        style=filled;
        color="#d5e8d5";
        fillcolor="#f0fff0";

        ctx [label="writer_context", shape=box, fillcolor="#c0e0c0"];
    }

    subgraph cluster_deps {
        label="Shared Dependencies";
        style=filled;
        color="#dce8f5";
        fillcolor="#f0f6ff";

        backend [label="sqlite_backend\n(database operations)", shape=box, fillcolor="#c8ddf0"];
        registry [label="entity_registry\n(tracks registered entities)", shape=box, fillcolor="#c8ddf0"];
        key_providers [label="primary_key_providers\n(autoincrementer per table)", shape=box, fillcolor="#c8ddf0"];
        validator [label="insert_validator\n(foreign key checks)", shape=box, fillcolor="#c8ddf0"];
        uuid [label="uuid\n(session identifier)", shape=box, fillcolor="#c8ddf0"];
    }

    subgraph cluster_writers {
        label="Schema Writers (consumers)";
        style=filled;
        color="#f5e0c0";
        fillcolor="#fff8f0";

        info_w [label="info_registration_writer", shape=box, fillcolor="#f0dcc0"];
        region_w [label="region_writer", shape=box, fillcolor="#f0dcc0"];
        kd_w [label="kernel_dispatch_writer", shape=box, fillcolor="#f0dcc0"];
        mc_w [label="memory_copy_writer", shape=box, fillcolor="#f0dcc0"];
        ma_w [label="memory_alloc_writer", shape=box, fillcolor="#f0dcc0"];
        pmc_w [label="pmc_event_writer", shape=box, fillcolor="#f0dcc0"];
        common [label="common_insert_operations", shape=box, fillcolor="#f0dcc0"];
    }

    ctx -> backend;
    ctx -> registry;
    ctx -> key_providers;
    ctx -> validator;
    ctx -> uuid;

    validator -> registry [label="  queries  ", style=dashed, color=gray50];

    info_w -> ctx [label="  shared_ptr  ", color="#a06020", fontcolor="#a06020"];
    region_w -> ctx [color="#a06020"];
    kd_w -> ctx [color="#a06020"];
    mc_w -> ctx [color="#a06020"];
    ma_w -> ctx [color="#a06020"];
    pmc_w -> ctx [color="#a06020"];
    common -> ctx [color="#a06020"];
}