← mecheval / run / a2-channel-bracket-01 / claude-mcp-claude-opus-4-7 / 20260611T172626Z-b8b4

run 20260611T172626Z-b8b4

a2-channel-bracket-01 · claude-mcp-claude-opus-4-7

Summary

statusfail
score0.75 (3/4)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T17:26:26.938Z
ended2026-06-11T17:28:16.362Z
tokens583,322 in · 6,287 out · 589,609 total
wallclock109.4s
tool calls41
task hash8a57ee77a91f87fa…
vcad hashabd862c2807d951d…

Prompt

Make a U-shaped channel bracket built from three rectangular plates fused into a single solid. Bottom plate: x in [0, 30], y in [0, 40], z in [0, 4]. Left wall standing on top of the bottom: x in [0, 4], y in [0, 40], z in [4, 30]. Right wall standing on top of the bottom: x in [26, 30], y in [0, 40], z in [4, 30]. Output a single solid.

Checks

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

details: {
  "root_count": 4,
  "solids_produced": 4
}
1
bbox
pass
params + details 
params: {
  "type": "bbox",
  "min": [
    0,
    0,
    0
  ],
  "max": [
    30,
    40,
    30
  ],
  "tolerance_mm": 0.05
}

details: {
  "actual_max": [
    30,
    40,
    30
  ],
  "actual_min": [
    0,
    0,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.05
}
2
mass_props
fail
volume off by 68.3%
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 13120,
  "tolerance_pct": 0.1
}

details: {
  "volume": {
    "actual_mm3": 22080,
    "deviation_pct": 68.29268292682927,
    "pass": false,
    "spec_mm3": 13120,
    "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": [
          30,
          40,
          4
        ],
        "original_min": [
          0,
          0,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          30,
          40,
          4
        ],
        "roundtripped_min": [
          0,
          0,
          0
        ],
        "tolerance_mm": 0.050159744815937816
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 4800,
        "pass": true,
        "roundtripped_mm3": 4800
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          4,
          40,
          30
        ],
        "original_min": [
          0,
          0,
          4
        ],
        "pass": true,
        "roundtripped_max": [
          4,
          40,
          30
        ],
        "roundtripped_min": [
          0,
          0,
          4
        ],
        "tolerance_mm": 0.0478748368143433
      },
      "index": 1,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 4160,
        "pass": true,
        "roundtripped_mm3": 4160
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          30,
          40,
          30
        ],
        "original_min": [
          26,
          0,
          4
        ],
        "pass": true,
        "roundtripped_max": [
          30,
          40,
          30
        ],
        "roundtripped_min": [
          26,
          0,
          4
        ],
        "tolerance_mm": 0.0478748368143433
      },
      "index": 2,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 4160,
        "pass": true,
        "roundtripped_mm3": 4160
      }
    },
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          30,
          40,
          30
        ],
        "original_min": [
          0,
          0,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          30,
          40,
          30
        ],
        "roundtripped_min": [
          0,
          0,
          0
        ],
        "tolerance_mm": 0.05830951894845301
      },
      "index": 3,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 8960,
        "pass": true,
        "roundtripped_mm3": 8960
      }
    }
  ],
  "tolerance_pct": 0.1
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
5ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "union",
  "name": "U-Channel Bracket",
  "params": {
    "operands": [
      {
        "type": "cube",
        "params": {
          "size_x": 30,
          "size_y": 40,
          "size_z": 4
        }
      },
      {
        "type": "translate",
        "params": {
          "x": 0,
          "y": 0,
          "z": 4,
          "operand": {
            "type": "cube",
            "params": {
              "size_x": 4,
              "size_y": 40,
              "size_z": 26
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": 26,
          "y": 0,
          "z": 4,
          "operand": {
            "type": "cube",
            "params": {
              "size_x": 4,
              "size_y": 40,
              "size_z": 26
            }
          }
        }
      }
    ]
  }
}
2
create_cad_loon
ok
15ms
args
{
  "source": "[root [union [cube 30 40 4] [union [translate 0 0 4 [cube 4 40 26]] [translate 26 0 4 [cube 4 40 26]]]] \"steel\"]"
}
3
create
err
5ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "union",
  "name": "U-Channel Bracket",
  "params": {
    "left": {
      "type": "cube",
      "params": {
        "size_x": 30,
        "size_y": 40,
        "size_z": 4
      }
    },
    "right": {
      "type": "union",
      "params": {
        "left": {
          "type": "translate",
          "params": {
            "x": 0,
            "y": 0,
            "z": 4,
            "operand": {
              "type": "cube",
              "params": {
                "size_x": 4,
                "size_y": 40,
                "size_z": 26
              }
            }
          }
        },
        "right": {
          "type": "translate",
          "params": {
            "x": 26,
            "y": 0,
            "z": 4,
            "operand": {
              "type": "cube",
              "params": {
                "size_x": 4,
                "size_y": 40,
                "size_z": 26
              }
            }
          }
        }
      }
    }
  }
}
4
read
ok
2ms
args
{
  "document_id": "doc_1781198795061_2"
}
5
read
ok
3ms
args
{
  "document_id": "doc_1781198795061_2",
  "part_id": "6"
}
6
close_document
ok
3ms
args
{
  "document_id": "doc_1781198795061_2"
}
7
create
ok
3ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "cube",
  "name": "Bottom Plate",
  "params": {
    "size": {
      "x": 30,
      "y": 40,
      "z": 4
    }
  }
}
8
create
ok
7ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "cube",
  "name": "Left Wall Cube",
  "parent_part_id": "1",
  "params": {
    "size": {
      "x": 4,
      "y": 40,
      "z": 26
    }
  }
}
9
read
ok
3ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "1"
}
10
read
ok
2ms
args
{
  "document_id": "doc_1781198787115_1"
}
11
delete
ok
4ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "1"
}
12
delete
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "2"
}
13
create
ok
3ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "cube",
  "name": "Bottom",
  "params": {
    "size": {
      "x": 30,
      "y": 40,
      "z": 4
    }
  }
}
14
create
ok
2ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "cube",
  "name": "LeftRaw",
  "parent_part_id": "1",
  "params": {
    "size": {
      "x": 4,
      "y": 40,
      "z": 26
    }
  }
}
15
read
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "2"
}
16
delete
ok
2ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "1"
}
17
delete
ok
2ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "2"
}
18
create
err
2ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "translate",
  "name": "LeftWall",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": 4
    },
    "child": {
      "type": "cube",
      "params": {
        "size": {
          "x": 4,
          "y": 40,
          "z": 26
        }
      }
    }
  }
}
19
create
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "cube",
  "name": "LeftRaw",
  "params": {
    "size": {
      "x": 4,
      "y": 40,
      "z": 26
    }
  }
}
20
create
err
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "translate",
  "name": "LeftWall",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": 4
    }
  }
}
21
create
ok
3ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "translate",
  "name": "LeftWall",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": 4
    },
    "child": 1
  }
}
22
read
ok
1ms
args
{
  "document_id": "doc_1781198787115_1"
}
23
read
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "2"
}
24
read
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "1"
}
25
delete
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "1"
}
26
delete
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "2"
}
27
create
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "cube",
  "name": "Bottom",
  "params": {
    "size": {
      "x": 30,
      "y": 40,
      "z": 4
    }
  }
}
28
create
ok
0ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "cube",
  "name": "LeftRaw",
  "params": {
    "size": {
      "x": 4,
      "y": 40,
      "z": 26
    }
  }
}
29
create
ok
0ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "cube",
  "name": "RightRaw",
  "params": {
    "size": {
      "x": 4,
      "y": 40,
      "z": 26
    }
  }
}
30
create
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "translate",
  "name": "LeftWall",
  "parent_part_id": "2",
  "params": {
    "offset": {
      "x": 0,
      "y": 0,
      "z": 4
    },
    "child": 2
  }
}
31
create
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "translate",
  "name": "RightWall",
  "parent_part_id": "3",
  "params": {
    "offset": {
      "x": 26,
      "y": 0,
      "z": 4
    },
    "child": 3
  }
}
32
read
ok
1ms
args
{
  "document_id": "doc_1781198787115_1"
}
33
read
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "4"
}
34
read
ok
0ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "2"
}
35
delete
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "2"
}
36
delete
ok
0ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "3"
}
37
create
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "type": "union",
  "name": "Union1",
  "parent_part_id": "1",
  "params": {
    "left": 1,
    "right": 4
  }
}
38
read
ok
1ms
args
{
  "document_id": "doc_1781198787115_1"
}
39
read
ok
1ms
args
{
  "document_id": "doc_1781198787115_1",
  "part_id": "6"
}
40
get_document
ok
0ms
args
{
  "document_id": "doc_1781198787115_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T172626Z-b8b4.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "Bottom",
      "op": {
        "type": "Cube",
        "size": {
          "x": 30,
          "y": 40,
          "z": 4
        }
      }
    },
    "2": {
      "id": 2,
      "name": "LeftRaw",
      "op": {
        "type": "Cube",
        "size": {
          "x": 4,
          "y": 40,
          "z": 26
        }
      }
    },
    "3": {
      "id": 3,
      "name": "RightRaw",
      "op": {
        "type": "Cube",
        "size": {
          "x": 4,
          "y": 40,
          "z": 26
        }
      }
    },
    "4": {
      "id": 4,
      "name": "LeftWall",
      "op": {
        "type": "Translate",
        "child": 2,
        "offset": {
          "x": 0,
          "y": 0,
          "z": 4
        }
      }
    },
    "5": {
      "id": 5,
      "name": "RightWall",
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": 26,
          "y": 0,
          "z": 4
        }
      }
    },
    "6": {
      "id": 6,
      "name": "Union1",
      "op": {
        "type": "Union",
        "left": 1,
        "right": 4
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 1,
      "material": "default"
    },
    {
      "root": 4,
      "material": "default"
    },
    {
      "root": 5,
      "material": "default"
    },
    {
      "root": 6,
      "material": "default"
    }
  ]
}
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sibling project: vcad. · github

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