← mecheval / run / a2-tee-bracket-01 / claude-mcp-claude-opus-4-7 / 20260611T180024Z-05b2

run 20260611T180024Z-05b2

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

Summary

statusfail
score0.50 (3/6)
submissionself-run
modelclaude-mcp-claude-opus-4-7 (anthropic)
started2026-06-11T18:00:24.521Z
ended2026-06-11T18:02:50.181Z
tokens600,450 in · 5,851 out · 606,301 total
wallclock145.6s
tool calls36
task hashb0cf14433cfe8350…
vcad hash7a2fbfee71f763ba…

Prompt

Make a flat T-shaped bracket lying in the XY plane, 5mm thick (z = 0 to z = 5). Horizontal bar: x in [-30, 30], y in [0, 20]. Vertical stem extending in +Y from the middle of the horizontal bar: x in [-10, 10], y in [20, 50]. Drill three through-holes of diameter 5mm, axes parallel to Z: one at (0, 45) at the top of the stem, and two on the horizontal bar at (-25, 10) and (25, 10). Output 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": [
    -30,
    0,
    0
  ],
  "max": [
    30,
    50,
    5
  ],
  "tolerance_mm": 0.1
}

details: {
  "actual_max": [
    30,
    50,
    5
  ],
  "actual_min": [
    -30,
    0,
    0
  ],
  "deviation_max": [
    0,
    0,
    0
  ],
  "deviation_min": [
    0,
    0,
    0
  ],
  "max_abs_deviation_mm": 0,
  "tolerance_mm": 0.1
}
2
mass_props
fail
volume off by 3.4%
params + details 
params: {
  "type": "mass_props",
  "volume_mm3": 8705.48,
  "tolerance_pct": 0.5
}

details: {
  "volume": {
    "actual_mm3": 9000,
    "deviation_pct": 3.3831563566856793,
    "pass": false,
    "spec_mm3": 8705.48,
    "tolerance_pct": 0.5
  }
}
3
hole_count
fail
found 0/3 holes of ⌀5mm
params + details 
params: {
  "type": "hole_count",
  "diameter_mm": 5,
  "expected": 3,
  "diameter_tolerance_mm": 0.05
}

details: {
  "actual": 0,
  "diameter_mm": 5,
  "diameter_tolerance_mm": 0.05,
  "expected": 3,
  "found": []
}
4
hole_positions
fail
3/3 mispositioned
params + details 
params: {
  "type": "hole_positions",
  "diameter_mm": 5,
  "positions": [
    [
      0,
      45,
      0
    ],
    [
      -25,
      10,
      0
    ],
    [
      25,
      10,
      0
    ]
  ],
  "tolerance_mm": 0.15
}

details: {
  "diameter_mm": 5,
  "per_expected": [
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        0,
        45
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        -25,
        10
      ]
    },
    {
      "pass": false,
      "reason": "no candidate cylindrical feature of this diameter remained unmatched",
      "spec_xy": [
        25,
        10
      ]
    }
  ],
  "tolerance_mm": 0.15,
  "unmatched_extras": []
}
5
step_roundtrip
pass
params + details 
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.5
}

details: {
  "per_solid": [
    {
      "bbox": {
        "max_abs_deviation_mm": 0,
        "original_max": [
          30,
          50,
          5
        ],
        "original_min": [
          -30,
          0,
          0
        ],
        "pass": true,
        "roundtripped_max": [
          30,
          50,
          5
        ],
        "roundtripped_min": [
          -30,
          0,
          0
        ],
        "tolerance_mm": 0.3913118960624632
      },
      "index": 0,
      "pass": true,
      "volume": {
        "deviation_pct": 0,
        "original_mm3": 9000,
        "pass": true,
        "roundtripped_mm3": 9000
      }
    }
  ],
  "tolerance_pct": 0.5
}

Tool calls

0
open_document
ok
2ms
args
{}
1
create
err
6ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "union",
  "name": "T-Bracket",
  "params": {
    "children": [
      {
        "type": "translate",
        "params": {
          "x": -30,
          "y": 0,
          "z": 0,
          "child": {
            "type": "cube",
            "params": {
              "x": 60,
              "y": 20,
              "z": 5
            }
          }
        }
      },
      {
        "type": "translate",
        "params": {
          "x": -10,
          "y": 20,
          "z": 0,
          "child": {
            "type": "cube",
            "params": {
              "x": 20,
              "y": 30,
              "z": 5
            }
          }
        }
      }
    ]
  }
}
2
read
ok
3ms
args
{
  "document_id": "doc_1781200824705_1"
}
3
create
ok
4ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "cube",
  "name": "HBar",
  "params": {
    "size": [
      60,
      20,
      5
    ],
    "center": false
  }
}
4
read
ok
4ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "1"
}
5
delete
ok
5ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "1"
}
6
create
err
4ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "difference",
  "name": "T-Bracket",
  "params": {
    "left": {
      "type": "union",
      "params": {
        "left": {
          "type": "translate",
          "params": {
            "offset": {
              "x": -30,
              "y": 0,
              "z": 0
            },
            "child": {
              "type": "cube",
              "params": {
                "size": {
                  "x": 60,
                  "y": 20,
                  "z": 5
                }
              }
            }
          }
        },
        "right": {
          "type": "translate",
          "params": {
            "offset": {
              "x": -10,
              "y": 20,
              "z": 0
            },
            "child": {
              "type": "cube",
              "params": {
                "size": {
                  "x": 20,
                  "y": 30,
                  "z": 5
                }
              }
            }
          }
        }
      }
    },
    "right": {
      "type": "union",
      "params": {
        "left": {
          "type": "union",
          "params": {
            "left": {
              "type": "translate",
              "params": {
                "offset": {
                  "x": 0,
                  "y": 45,
                  "z": -1
                },
                "child": {
                  "type": "cylinder",
                  "params": {
                    "radius": 2.5,
                    "height": 7
                  }
                }
              }
            },
            "right": {
              "type": "translate",
              "params": {
                "offset": {
                  "x": -25,
                  "y": 10,
                  "z": -1
                },
                "child": {
                  "type": "cylinder",
                  "params": {
                    "radius": 2.5,
                    "height": 7
                  }
                }
              }
            }
          }
        },
        "right": {
          "type": "translate",
          "params": {
            "offset": {
              "x": 25,
              "y": 10,
              "z": -1
            },
            "child": {
              "type": "cylinder",
              "params": {
                "radius": 2.5,
                "height": 7
              }
            }
          }
        }
      }
    }
  }
}
7
create_cad_loon
ok
15ms
args
{
  "source": "[let\n  hbar [translate -30 0 0 [cube 60 20 5]]\n  stem [translate -10 20 0 [cube 20 30 5]]\n  body [union hbar stem]\n  hole1 [translate 0 45 -1 [cylinder 2.5 7]]\n  hole2 [translate -25 10 -1 [cylinder 2.5 7]]\n  hole3 [translate 25 10 -1 [cylinder 2.5 7]]\n  holes [union hole1 [union hole2 hole3]]\n  [root [difference holes body] \"steel\"]]",
  "format": "json"
}
8
create_cad_loon
ok
5ms
args
{
  "source": "[root\n  [difference\n    [union\n      [translate 0 45 -1 [cylinder 2.5 7]]\n      [union\n        [translate -25 10 -1 [cylinder 2.5 7]]\n        [translate 25 10 -1 [cylinder 2.5 7]]]]\n    [union\n      [translate -30 0 0 [cube 60 20 5]]\n      [translate -10 20 0 [cube 20 30 5]]]]\n  \"steel\"]",
  "format": "json"
}
9
create
ok
2ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "cube",
  "name": "hbar_cube",
  "params": {
    "size": {
      "x": 60,
      "y": 20,
      "z": 5
    }
  }
}
10
create
ok
4ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "translate",
  "name": "hbar_pos",
  "parent_part_id": "1",
  "params": {
    "child": 1,
    "offset": {
      "x": -30,
      "y": 0,
      "z": 0
    }
  }
}
11
read
ok
3ms
args
{
  "document_id": "doc_1781200824705_1"
}
12
read
ok
3ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "2"
}
13
read
ok
3ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "1"
}
14
delete
ok
4ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "2"
}
15
delete
ok
1ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "1"
}
16
read
ok
2ms
args
{
  "document_id": "doc_1781200886215_3"
}
17
create
ok
3ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "cube",
  "name": "hbar",
  "params": {
    "size": {
      "x": 60,
      "y": 20,
      "z": 5
    }
  }
}
18
create
err
3ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "translate",
  "parent_part_id": "1",
  "params": {
    "offset": {
      "x": -30,
      "y": 0,
      "z": 0
    }
  }
}
19
create
ok
2ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "translate",
  "parent_part_id": "1",
  "params": {
    "child": 1,
    "offset": {
      "x": -30,
      "y": 0,
      "z": 0
    }
  }
}
20
read
ok
2ms
args
{
  "document_id": "doc_1781200824705_1"
}
21
delete
ok
3ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "1"
}
22
read
ok
3ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "2"
}
23
create
ok
4ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "cube",
  "name": "stem",
  "params": {
    "size": {
      "x": 20,
      "y": 30,
      "z": 5
    }
  }
}
24
create
ok
3ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "translate",
  "parent_part_id": "3",
  "params": {
    "child": 3,
    "offset": {
      "x": -10,
      "y": 20,
      "z": 0
    }
  }
}
25
delete
ok
2ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "3"
}
26
create
ok
2ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "union",
  "name": "body",
  "params": {
    "left": 2,
    "right": 4
  }
}
27
read
ok
2ms
args
{
  "document_id": "doc_1781200824705_1"
}
28
read
ok
2ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "5"
}
29
delete
ok
3ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "2"
}
30
delete
ok
2ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "4"
}
31
read
ok
2ms
args
{
  "document_id": "doc_1781200824705_1",
  "part_id": "5"
}
32
create
err
4ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "cylinder",
  "name": "h1",
  "params": {
    "radius": 2.5,
    "height": 7
  }
}
33
create
err
1ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "cylinder",
  "name": "h2",
  "params": {
    "radius": 2.5,
    "height": 7
  }
}
34
create
err
1ms
args
{
  "document_id": "doc_1781200824705_1",
  "type": "cylinder",
  "name": "h3",
  "params": {
    "radius": 2.5,
    "height": 7
  }
}
35
get_document
ok
1ms
args
{
  "document_id": "doc_1781200824705_1"
}

What the model built

isometric render via vcad-render · the model's actual .vcad output, faceted at 28 segments per cylinder · download 20260611T180024Z-05b2.vcad

.vcad source

{
  "version": "0.1",
  "nodes": {
    "1": {
      "id": 1,
      "name": "hbar",
      "op": {
        "type": "Cube",
        "size": {
          "x": 60,
          "y": 20,
          "z": 5
        }
      }
    },
    "2": {
      "id": 2,
      "name": null,
      "op": {
        "type": "Translate",
        "child": 1,
        "offset": {
          "x": -30,
          "y": 0,
          "z": 0
        }
      }
    },
    "3": {
      "id": 3,
      "name": "stem",
      "op": {
        "type": "Cube",
        "size": {
          "x": 20,
          "y": 30,
          "z": 5
        }
      }
    },
    "4": {
      "id": 4,
      "name": null,
      "op": {
        "type": "Translate",
        "child": 3,
        "offset": {
          "x": -10,
          "y": 20,
          "z": 0
        }
      }
    },
    "5": {
      "id": 5,
      "name": "body",
      "op": {
        "type": "Union",
        "left": 2,
        "right": 4
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": 5,
      "material": "default"
    }
  ]
}
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sibling project: vcad. · github

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