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run 20260611T175751Z-b343

a2-stepped-pyramid-01 · claude-mcp-claude-opus-4-7

Summary

statusPASS
score1.00 (4/4)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T17:57:51.935Z
ended2026-06-11T17:59:27.663Z
tokens323,030 in · 3,317 out · 326,347 total
wallclock95.7s
tool calls25
task hashc7bef444b49eac20…
vcad hash54a0d4517afbb084…

Prompt

Make a stepped square pyramid built from three stacked rectangular blocks. All tiers are centered on the Z axis. Bottom tier: 40mm × 40mm × 10mm tall (x in [-20, 20], y in [-20, 20], z in [0, 10]). Middle tier sits directly on top: 28mm × 28mm × 10mm tall (x in [-14, 14], y in [-14, 14], z in [10, 20]). Top tier sits directly on top of the middle: 16mm × 16mm × 10mm tall (x in [-8, 8], y in [-8, 8], z in [20, 30]). Fuse all three into a single solid.

Checks

0
valid_solid
pass
params + details 
params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}
1
bbox
pass
params + details 
params: {
  "type": "bbox",
  "min": [
    -20,
    -20,
    0
  ],
  "max": [
    20,
    20,
    30
  ],
  "tolerance_mm": 0.05
}

details: {
  "actual_max": [
    20,
    20,
    30
  ],
  "actual_min": [
    -20,
    -20,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.05
}
2
mass_props
pass
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 26400,
  "tolerance_pct": 0.1
}

details: {
  "volume": {
    "actual_mm3": 26400,
    "deviation_pct": 0,
    "pass": true,
    "spec_mm3": 26400,
    "tolerance_pct": 0.1
  }
}
3
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          20,
          20,
          30
        ],
        "original_min": [
          -20,
          -20,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          20,
          20,
          30
        ],
        "roundtripped_min": [
          -20,
          -20,
          0
        ],
        "tolerance_mm": 0.06403124237432849
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 26400,
        "pass": true,
        "roundtripped_mm3": 26400
      }
    }
  ],
  "tolerance_pct": 0.1
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781200672107_1",
  "type": "union",
  "name": "Stepped Pyramid",
  "params": {
    "children": [
      {
        "type": "translate",
        "params": {
          "x": -20,
          "y": -20,
          "z": 0,
          "child": {
            "type": "cube",
            "params": {
              "x": 40,
              "y": 40,
              "z": 10
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": -14,
          "y": -14,
          "z": 10,
          "child": {
            "type": "cube",
            "params": {
              "x": 28,
              "y": 28,
              "z": 10
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": -8,
          "y": -8,
          "z": 20,
          "child": {
            "type": "cube",
            "params": {
              "x": 16,
              "y": 16,
              "z": 10
            }
          }
        }
      }
    ]
  }
}
2
create_cad_loon
ok
14ms
args
{
  "source": "[root\n  [union\n    [translate -20 -20 0 [cube 40 40 10]]\n    [union\n      [translate -14 -14 10 [cube 28 28 10]]\n      [translate -8 -8 20 [cube 16 16 10]]]]\n  \"steel\"]",
  "format": "json"
}
3
create
err
3ms
args
{
  "document_id": "doc_1781200672107_1",
  "type": "cube",
  "name": "Bottom",
  "params": {
    "x": 40,
    "y": 40,
    "z": 10
  }
}
4
create
ok
4ms
args
{
  "document_id": "doc_1781200672107_1",
  "type": "cube",
  "name": "Bottom",
  "params": {
    "size": {
      "x": 40,
      "y": 40,
      "z": 10
    }
  }
}
5
create
ok
4ms
args
{
  "document_id": "doc_1781200672107_1",
  "type": "translate",
  "name": "Bottom Center",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -20,
      "y": -20,
      "z": 0
    },
    "child": 1
  }
}
6
create
ok
3ms
args
{
  "document_id": "doc_1781200672107_1",
  "type": "cube",
  "name": "Middle",
  "params": {
    "size": {
      "x": 28,
      "y": 28,
      "z": 10
    }
  }
}
7
create
ok
3ms
args
{
  "document_id": "doc_1781200672107_1",
  "type": "translate",
  "parent_part_id": "3",
  "params": {
    "offset": {
      "x": -14,
      "y": -14,
      "z": 10
    },
    "child": 3
  }
}
8
create
ok
4ms
args
{
  "document_id": "doc_1781200672107_1",
  "type": "cube",
  "name": "Top",
  "params": {
    "size": {
      "x": 16,
      "y": 16,
      "z": 10
    }
  }
}
9
create
ok
6ms
args
{
  "document_id": "doc_1781200672107_1",
  "type": "translate",
  "parent_part_id": "5",
  "params": {
    "offset": {
      "x": -8,
      "y": -8,
      "z": 20
    },
    "child": 5
  }
}
10
create
ok
3ms
args
{
  "document_id": "doc_1781200672107_1",
  "type": "union",
  "name": "Bottom+Middle",
  "parent_part_id": "2",
  "params": {
    "left": 2,
    "right": 4
  }
}
11
read
ok
3ms
args
{
  "document_id": "doc_1781200672107_1"
}
12
create
ok
1ms
args
{
  "document_id": "doc_1781200672107_1",
  "type": "union",
  "name": "Stepped Pyramid",
  "parent_part_id": "7",
  "params": {
    "left": 7,
    "right": 6
  }
}
13
read
ok
3ms
args
{
  "document_id": "doc_1781200672107_1"
}
14
inspect_cad
ok
51ms
args
{
  "document_id": "doc_1781200672107_1"
}
15
get_document
ok
2ms
args
{
  "document_id": "doc_1781200672107_1"
}
16
delete
ok
2ms
args
{
  "document_id": "doc_1781200672107_1",
  "part_id": "1"
}
17
delete
ok
1ms
args
{
  "document_id": "doc_1781200672107_1",
  "part_id": "2"
}
18
delete
ok
1ms
args
{
  "document_id": "doc_1781200672107_1",
  "part_id": "3"
}
19
delete
ok
1ms
args
{
  "document_id": "doc_1781200672107_1",
  "part_id": "4"
}
20
delete
ok
0ms
args
{
  "document_id": "doc_1781200672107_1",
  "part_id": "5"
}
21
delete
ok
1ms
args
{
  "document_id": "doc_1781200672107_1",
  "part_id": "6"
}
22
delete
ok
0ms
args
{
  "document_id": "doc_1781200672107_1",
  "part_id": "7"
}
23
inspect_cad
ok
5ms
args
{
  "document_id": "doc_1781200672107_1"
}
24
get_document
ok
2ms
args
{
  "document_id": "doc_1781200672107_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T175751Z-b343.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Bottom",
      "op": {
        "type": "Cube",
        "size": {
          "x": 40,
          "y": 40,
          "z": 10
        }
      }
    },
    "2": {
      "id": 2,
      "name": "Bottom Center",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -20,
          "y": -20,
          "z": 0
        }
      }
    },
    "3": {
      "id": 3,
      "name": "Middle",
      "op": {
        "type": "Cube",
        "size": {
          "x": 28,
          "y": 28,
          "z": 10
        }
      }
    },
    "4": {
      "id": 4,
      "name": null,
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": -14,
          "y": -14,
          "z": 10
        }
      }
    },
    "5": {
      "id": 5,
      "name": "Top",
      "op": {
        "type": "Cube",
        "size": {
          "x": 16,
          "y": 16,
          "z": 10
        }
      }
    },
    "6": {
      "id": 6,
      "name": null,
      "op": {
        "type": "Translate",
        "child": 5,
        "offset": {
          "x": -8,
          "y": -8,
          "z": 20
        }
      }
    },
    "7": {
      "id": 7,
      "name": "Bottom+Middle",
      "op": {
        "type": "Union",
        "left": 2,
        "right": 4
      }
    },
    "8": {
      "id": 8,
      "name": "Stepped Pyramid",
      "op": {
        "type": "Union",
        "left": 7,
        "right": 6
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 8,
      "material": "default"
    }
  ]
}
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sibling project: vcad. · github

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