← mecheval / run / a2-stepped-block-01 / claude-mcp-claude-opus-4-7 / 20260611T175518Z-61e3

run 20260611T175518Z-61e3

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

Summary

status	PASS
score	1.00 (4/4)
submission	self-run
model	claude-mcp-claude-opus-4-7 (anthropic)
started	2026-06-11T17:55:18.195Z
ended	2026-06-11T17:57:29.643Z
tokens	364,858 in · 3,614 out · 368,472 total
wallclock	131.4s
tool calls	27
task hash	`f89fc615a163d859…`
vcad hash	`8d24df1f8548e317…`

Prompt

Start with a rectangular block 50mm long (X) × 30mm wide (Y) × 20mm tall (Z), centered in X and Y with the bottom face on the XY plane (so it spans x in [-25, 25], y in [-15, 15], z in [0, 20]). Cut away the upper +X corner: remove material in the region x in [0, 25], y in [-15, 15], z in [10, 20]. The result has an L-shape when viewed from +Y. Output a single solid.

Checks

valid_solid

pass

params + details

params: {
  "type": "valid_solid"
}

details: {
  "root_count": 1,
  "solids_produced": 1
}

bbox

pass

params + details

params: {
  "type": "bbox",
  "min": [
    -25,
    -15,
    0
  ],
  "max": [
    25,
    15,
    20
  ],
  "tolerance_mm": 0.05
}

details: {
  "actual_max": [
    25,
    15,
    20
  ],
  "actual_min": [
    -25,
    -15,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.05
}

mass_props

pass

params + details

params: {
  "type": "mass_props",
  "volume_mm3": 22500,
  "tolerance_pct": 0.1
}

details: {
  "volume": {
    "actual_mm3": 22500,
    "deviation_pct": 0,
    "pass": true,
    "spec_mm3": 22500,
    "tolerance_pct": 0.1
  }
}

step_roundtrip

pass

params + details

params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.1
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          25,
          15,
          20
        ],
        "original_min": [
          -25,
          -15,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          25,
          15,
          20
        ],
        "roundtripped_min": [
          -25,
          -15,
          0
        ],
        "tolerance_mm": 0.061644140029689765
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 22500,
        "pass": true,
        "roundtripped_mm3": 22500
      }
    }
  ],
  "tolerance_pct": 0.1
}

Tool calls

open_document

2ms

args

{}

create

err

6ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "difference",
  "name": "L-Block",
  "params": {
    "a": {
      "type": "translate",
      "params": {
        "x": -25,
        "y": -15,
        "z": 0,
        "child": {
          "type": "cube",
          "params": {
            "x": 50,
            "y": 30,
            "z": 20
          }
        }
      }
    },
    "b": {
      "type": "translate",
      "params": {
        "x": 0,
        "y": -15,
        "z": 10,
        "child": {
          "type": "cube",
          "params": {
            "x": 25,
            "y": 30,
            "z": 10
          }
        }
      }
    }
  }
}

create_cad_loon

10ms

args

{
  "source": "[difference\n  [translate 0 -15 10 [cube 25 30 10]]\n  [translate -25 -15 0 [cube 50 30 20]]]",
  "format": "json"
}

create

5ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "cube",
  "name": "Block",
  "params": {
    "size": {
      "x": 50,
      "y": 30,
      "z": 20
    }
  }
}

create

6ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "translate",
  "name": "BlockPos",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -25,
      "y": -15,
      "z": 0
    },
    "child": 1
  }
}

create

2ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "cube",
  "name": "Cutter",
  "parent_part_id": "1",
  "params": {
    "size": {
      "x": 25,
      "y": 30,
      "z": 10
    }
  }
}

read

5ms

args

{
  "document_id": "doc_1781200518365_1"
}

delete

1ms

args

{
  "document_id": "doc_1781200518365_1",
  "part_id": "1"
}

delete

1ms

args

{
  "document_id": "doc_1781200518365_1",
  "part_id": "2"
}

delete

1ms

args

{
  "document_id": "doc_1781200518365_1",
  "part_id": "3"
}

create

err

4ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "difference",
  "name": "L-Block",
  "params": {
    "left": {
      "type": "translate",
      "offset": {
        "x": -25,
        "y": -15,
        "z": 0
      },
      "child": {
        "type": "cube",
        "size": {
          "x": 50,
          "y": 30,
          "z": 20
        }
      }
    },
    "right": {
      "type": "translate",
      "offset": {
        "x": 0,
        "y": -15,
        "z": 10
      },
      "child": {
        "type": "cube",
        "size": {
          "x": 25,
          "y": 30,
          "z": 10
        }
      }
    }
  }
}

create

5ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "cube",
  "name": "BlockCube",
  "params": {
    "size": {
      "x": 50,
      "y": 30,
      "z": 20
    }
  }
}

create

err

3ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "translate",
  "name": "BlockPos",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -25,
      "y": -15,
      "z": 0
    }
  }
}

create

3ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "translate",
  "name": "BlockPos",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -25,
      "y": -15,
      "z": 0
    },
    "child": 1
  }
}

create

5ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "cube",
  "name": "CutCube",
  "params": {
    "size": {
      "x": 25,
      "y": 30,
      "z": 10
    }
  }
}

create

3ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "translate",
  "name": "CutPos",
  "parent_part_id": "3",
  "params": {
    "offset": {
      "x": 0,
      "y": -15,
      "z": 10
    },
    "child": 3
  }
}

read

3ms

args

{
  "document_id": "doc_1781200518365_1"
}

create

3ms

args

{
  "document_id": "doc_1781200518365_1",
  "type": "difference",
  "name": "L-Block",
  "parent_part_id": "2",
  "params": {
    "left": 2,
    "right": 4
  }
}

read

2ms

args

{
  "document_id": "doc_1781200518365_1"
}

get_document

1ms

args

{
  "document_id": "doc_1781200518365_1"
}

delete

3ms

args

{
  "document_id": "doc_1781200518365_1",
  "part_id": "1"
}

delete

2ms

args

{
  "document_id": "doc_1781200518365_1",
  "part_id": "2"
}

delete

1ms

args

{
  "document_id": "doc_1781200518365_1",
  "part_id": "3"
}

delete

1ms

args

{
  "document_id": "doc_1781200518365_1",
  "part_id": "4"
}

get_document

2ms

args

{
  "document_id": "doc_1781200518365_1"
}

render_view

94ms

args

{
  "document_id": "doc_1781200518365_1"
}

get_document

2ms

args

{
  "document_id": "doc_1781200518365_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T175518Z-61e3.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "BlockCube",
      "op": {
        "type": "Cube",
        "size": {
          "x": 50,
          "y": 30,
          "z": 20
        }
      }
    },
    "2": {
      "id": 2,
      "name": "BlockPos",
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -25,
          "y": -15,
          "z": 0
        }
      }
    },
    "3": {
      "id": 3,
      "name": "CutCube",
      "op": {
        "type": "Cube",
        "size": {
          "x": 25,
          "y": 30,
          "z": 10
        }
      }
    },
    "4": {
      "id": 4,
      "name": "CutPos",
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": 0,
          "y": -15,
          "z": 10
        }
      }
    },
    "5": {
      "id": 5,
      "name": "L-Block",
      "op": {
        "type": "Difference",
        "left": 2,
        "right": 4
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 5,
      "material": "default"
    }
  ]
}

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