The CAD MCP reported an edge length as volume and rendered a PNG with geometry missing, since CadQuery picks length, area or volume from the first child of a compound; companion issue #35 covers the rendering side.

Recurring agent failure issue in cadquery-contrib (CadQuery)

cadquery-contrib (CadQuery)MCADAgent failureMedium confidence

What engineers report

A recurring agent failure problem in cadquery-contrib (CadQuery) that mostly hits the mechanical designer.

Failure pattern: validation / geometry

Analyst note

From the Grok pain-radar digests, Nov 7-8 2026 (Nov 7 8:41 PM ET through Nov 8 7:41 AM ET digests plus the Haitch overnight edition). Verified live 2026-11-08: issue/PR read; title and state confirmed.

What it costs a team

Modeled annual cost

$30,000

For a team of 5

Prototype delay

3 days

Modeled schedule slip per occurrence

Time lost

240 min

Per engineer per month, about 1 incidents

How the cost is modeled

240 min/month × 5 engineers × 12 months = 240 hours × $125/hour = $30,000

A modeled estimate with medium confidence. Swap in your own team size and loaded rate to size it for your team.

Engineering tools that address it

No engineering tool profile lists this error yet. Browse tools that connect to cadquery-contrib (CadQuery).

Evidence

  1. 1CadQuery/cadquery-contrib PR #32: fix(mcp): inspect volume properties from solids onlygithub.com

Sourced from public community reports. Costs and delays are modeled estimates, not measurements. Know a better source or a fix? Tell us at hello@productflo.io.