← mecheval / run / a2-stepped-pyramid-01 / claude-direct-claude-haiku-4-5-20251001 / 20260428T211902Z-1171

run 20260428T211902Z-1171

a2-stepped-pyramid-01 · claude-direct-claude-haiku-4-5-20251001

Summary

statusfail
score0.00 (0/4)
submissionself-run
modelclaude-direct-claude-haiku-4-5-20251001 (anthropic)
started2026-04-28T21:19:02.160Z
ended2026-04-28T21:19:05.357Z
tokens746 in · 683 out · 1,429 total
wallclock3.2s
tool calls1
task hashc7bef444b49eac20…
vcad hasha2c30617720cadcb…

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
fail
solid invalid
params + details
params: {
  "type": "valid_solid"
}

details: {
  "error": "parse: Invalid JSON vcad file: invalid value: expected key to be a number in quotes at line 4 column 5",
  "reason": "fatal evaluation error"
}
1
bbox
fail
? off by 0.00mm
params + details
params: {
  "type": "bbox",
  "min": [
    -20,
    -20,
    0
  ],
  "max": [
    20,
    20,
    30
  ],
  "tolerance_mm": 0.05
}

details: {
  "reason": "no valid solid to measure"
}
2
mass_props
fail
mass props off
params + details
params: {
  "type": "mass_props",
  "volume_mm3": 26400,
  "tolerance_pct": 0.1
}

details: {
  "reason": "no valid solid to measure"
}
3
step_roundtrip
fail
STEP roundtrip failed
params + details
params: {
  "type": "step_roundtrip",
  "tolerance_pct": 0.1
}

details: {
  "reason": "no valid solid to round-trip"
}

Tool calls

0
anthropic.messages.create
ok
3192ms
args
{
  "model": "claude-haiku-4-5-20251001",
  "max_tokens": 8000,
  "system_chars": 1632,
  "user_chars": 518
}

What the model built

no render available — vcad-render did not produce geometry for this attempt

.vcad source

{
  "version": "0.1",
  "nodes": {
    "bottom_cube": {
      "id": "bottom_cube",
      "name": "Bottom Tier",
      "op": {
        "type": "Cube",
        "size": {"x": 40, "y": 40, "z": 10}
      }
    },
    "bottom_translated": {
      "id": "bottom_translated",
      "name": "Bottom Tier Centered",
      "op": {
        "type": "Translate",
        "child": "bottom_cube",
        "offset": {"x": -20, "y": -20, "z": 0}
      }
    },
    "middle_cube": {
      "id": "middle_cube",
      "name": "Middle Tier",
      "op": {
        "type": "Cube",
        "size": {"x": 28, "y": 28, "z": 10}
      }
    },
    "middle_translated": {
      "id": "middle_translated",
      "name": "Middle Tier Centered",
      "op": {
        "type": "Translate",
        "child": "middle_cube",
        "offset": {"x": -14, "y": -14, "z": 10}
      }
    },
    "top_cube": {
      "id": "top_cube",
      "name": "Top Tier",
      "op": {
        "type": "Cube",
        "size": {"x": 16, "y": 16, "z": 10}
      }
    },
    "top_translated": {
      "id": "top_translated",
      "name": "Top Tier Centered",
      "op": {
        "type": "Translate",
        "child": "top_cube",
        "offset": {"x": -8, "y": -8, "z": 20}
      }
    },
    "bottom_middle_union": {
      "id": "bottom_middle_union",
      "name": "Bottom and Middle Union",
      "op": {
        "type": "Union",
        "left": "bottom_translated",
        "right": "middle_translated"
      }
    },
    "pyramid": {
      "id": "pyramid",
      "name": "Stepped Pyramid",
      "op": {
        "type": "Union",
        "left": "bottom_middle_union",
        "right": "top_translated"
      }
    }
  },
  "materials": {},
  "part_materials": {},
  "roots": [
    {
      "root": "pyramid",
      "material": "default"
    }
  ]
}

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