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      "vars": { "outRows": 3584, "cols": 4096 },
      "inputs": {
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      "inputs": {
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        "steps": { "dtype": "int32", "shape": [1], "dist": "constant", "value": -1 }
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      "outputs": { "output": { "dtype": "float32", "shape": [4096, 4096], "dist": "empty" } },
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      "inputs": {
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        "starts": { "dtype": "int32", "shape": [1], "dist": "constant", "value": 128 },
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        "notes": "Sequence-window slice on the middle axis of a rank-3 tensor whose last extent is the ViT-B/16 token count: the inner_vec4 family needs both data and output last extents % 4 == 0 and rank2_single_axis_x4 serves rank 2 only, so 197 drops the copy to generic_metadata with a per-axis divmod address chain. Batch 24 keeps the sliced output above 1M elements. Control: slice-middle-axis-f32-24x512x200-control."
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        "steps": { "dtype": "int32", "shape": [1], "dist": "constant", "value": 1 }
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    },
    {
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      "provenance": {
        "notes": "Nearest multiple-of-4 last extent for slice-middle-axis-f32-24x512x197-vit-tokens-pathology (1.5% more bytes) on the inner_vec4 route."
      },
      "vars": { "batch": 24, "outRows": 256, "cols": 200 },
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        "steps": { "dtype": "int32", "shape": [1], "dist": "constant", "value": 1 }
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      "outputs": { "output": { "dtype": "float32", "shape": [24, 256, 200], "dist": "empty" } },
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}