← mecheval / run / a1-stepped-shaft-01 / claude-direct-claude-haiku-4-5-20251001 / 20260428T211335Z-3895
run 20260428T211335Z-3895
Summary
| status | fail |
| score | 0.00 (0/4) |
| submission | self-run |
| model | claude-direct-claude-haiku-4-5-20251001 (anthropic) |
| started | 2026-04-28T21:13:35.125Z |
| ended | 2026-04-28T21:13:37.649Z |
| tokens | 660 in · 476 out · 1,136 total |
| wallclock | 2.5s |
| tool calls | 1 |
| task hash | 0b362741f05ae514… |
| vcad hash | da259c3b100bbdf9… |
Prompt
Make a stepped shaft along the Z axis: a base cylinder of diameter 40mm and height 10mm sitting on the XY plane (z = 0 to z = 10), with a smaller coaxial cylinder of diameter 20mm and height 15mm stacked directly on top (z = 10 to z = 25). The result is a single solid.
Checks
0
valid_solidfail
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
bboxfail
? off by 0.00mm
params + details
params: {
"type": "bbox",
"min": [
-20,
-20,
0
],
"max": [
20,
20,
25
],
"tolerance_mm": 0.1
}
details: {
"reason": "no valid solid to measure"
}
2
mass_propsfail
mass props off
params + details
params: {
"type": "mass_props",
"volume_mm3": 17278.76,
"tolerance_pct": 1
}
details: {
"reason": "no valid solid to measure"
}
3
step_roundtripfail
STEP roundtrip failed
params + details
params: {
"type": "step_roundtrip",
"tolerance_pct": 1
}
details: {
"reason": "no valid solid to round-trip"
}
Tool calls
0
anthropic.messages.createok
2519ms
args
{
"model": "claude-haiku-4-5-20251001",
"max_tokens": 8000,
"system_chars": 1632,
"user_chars": 331
}What the model built
no render available — vcad-render did not produce geometry for this attempt
.vcad source
{
"version": "0.1",
"nodes": {
"base_cylinder": {
"id": "base_cylinder",
"name": "Base Cylinder",
"op": {
"type": "Cylinder",
"radius": 20,
"height": 10,
"segments": 32
}
},
"base_centered": {
"id": "base_centered",
"name": "Base Cylinder Centered",
"op": {
"type": "Translate",
"child": "base_cylinder",
"offset": {
"x": -20,
"y": -20,
"z": 0
}
}
},
"top_cylinder": {
"id": "top_cylinder",
"name": "Top Cylinder",
"op": {
"type": "Cylinder",
"radius": 10,
"height": 15,
"segments": 32
}
},
"top_centered": {
"id": "top_centered",
"name": "Top Cylinder Centered",
"op": {
"type": "Translate",
"child": "top_cylinder",
"offset": {
"x": -10,
"y": -10,
"z": 10
}
}
},
"stepped_shaft": {
"id": "stepped_shaft",
"name": "Stepped Shaft",
"op": {
"type": "Union",
"left": "base_centered",
"right": "top_centered"
}
}
},
"materials": {},
"part_materials": {},
"roots": [
{
"root": "stepped_shaft",
"material": "default"
}
]
}