{
  "id": "graph-sage-rec",
  "name": "GraphSAGE Recommender",
  "description": "Inductive node embeddings via neighbor sampling + aggregation — for graph-based recommenders (PinSage style)",
  "icon": "🕸",
  "category": "Recommendation",
  "components": [
    { "id": "input", "type": "input", "name": "Node Features", "position": { "x": 230, "y": 60 }, "params": { "shape": [128] }, "inputs": [], "outputs": [] },
    { "id": "sage1", "type": "graphSAGE", "name": "SAGE Layer 1", "scope": "gnn.layer.0", "position": { "x": 230, "y": 220 }, "params": { "inChannels": 128, "outChannels": 256, "aggregator": "mean" }, "inputs": [], "outputs": [] },
    { "id": "relu1", "type": "relu", "name": "ReLU", "scope": "gnn.layer.0", "position": { "x": 230, "y": 360 }, "params": {}, "inputs": [], "outputs": [] },
    { "id": "drop1", "type": "dropout", "name": "Dropout", "scope": "gnn.layer.0", "position": { "x": 230, "y": 480 }, "params": { "p": 0.2 }, "inputs": [], "outputs": [] },
    { "id": "sage2", "type": "graphSAGE", "name": "SAGE Layer 2", "scope": "gnn.layer.1", "position": { "x": 230, "y": 600 }, "params": { "inChannels": 256, "outChannels": 256, "aggregator": "mean" }, "inputs": [], "outputs": [] },
    { "id": "relu2", "type": "relu", "name": "ReLU", "scope": "gnn.layer.1", "position": { "x": 230, "y": 740 }, "params": {}, "inputs": [], "outputs": [] },
    { "id": "drop2", "type": "dropout", "name": "Dropout", "scope": "gnn.layer.1", "position": { "x": 230, "y": 860 }, "params": { "p": 0.2 }, "inputs": [], "outputs": [] },
    { "id": "sage3", "type": "graphSAGE", "name": "SAGE Layer 3", "scope": "gnn.layer.2", "position": { "x": 230, "y": 980 }, "params": { "inChannels": 256, "outChannels": 128, "aggregator": "mean" }, "inputs": [], "outputs": [] },
    { "id": "norm", "type": "layerNorm", "name": "LayerNorm", "scope": "gnn", "position": { "x": 230, "y": 1100 }, "params": { "normalizedShape": [128] }, "inputs": [], "outputs": [] },
    { "id": "output", "type": "output", "name": "Node Embedding", "position": { "x": 230, "y": 1220 }, "params": {}, "inputs": [], "outputs": [] }
  ],
  "connections": [
    { "id": "c1", "from": "input", "to": "sage1", "fromPort": "bottom", "toPort": "top" },
    { "id": "c2", "from": "sage1", "to": "relu1", "fromPort": "bottom", "toPort": "top" },
    { "id": "c3", "from": "relu1", "to": "drop1", "fromPort": "bottom", "toPort": "top" },
    { "id": "c4", "from": "drop1", "to": "sage2", "fromPort": "bottom", "toPort": "top" },
    { "id": "c5", "from": "sage2", "to": "relu2", "fromPort": "bottom", "toPort": "top" },
    { "id": "c6", "from": "relu2", "to": "drop2", "fromPort": "bottom", "toPort": "top" },
    { "id": "c7", "from": "drop2", "to": "sage3", "fromPort": "bottom", "toPort": "top" },
    { "id": "c8", "from": "sage3", "to": "norm", "fromPort": "bottom", "toPort": "top" },
    { "id": "c9", "from": "norm", "to": "output", "fromPort": "bottom", "toPort": "top" }
  ]
}