Rulecad now runs KiCad 10 DRC as a second opinion on every board. The first run found 2,041 problems. Most came from the converter: no nets at all, and header holes 0.7 mm out because KiCad drills at the pad's place and the converter wrote the copper's place. Under that noise were real faults: 120 via holes sat closer to tracks than JLCPCB's 0.2 mm rule, and one USB-C VBUS pad was unconnected because the socket has two pads named A4 and only one was wired.
Recurring agent failure issue in rulecad (JoniBach)
What engineers report
A recurring agent failure problem in rulecad (JoniBach) that mostly hits the electrical engineer.
Failure pattern: validation / failure
Analyst note
From the Grok pain-radar digests, Nov 9-10 2026 (Nov 9 7:41 AM ET through Nov 10 7:41 AM ET digests plus the Haitch editions). Verified live 2026-11-10: 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 rulecad (JoniBach).
Evidence
More recurring errors in rulecad (JoniBach)
- Comparing the fab zip with KiCad's own plots found circuit-json-to-gerber plotted rounded pads as squares on every copper layer, so 27 pad corners sat in plane copper on both inner layers, and USB-C slots were drilled round at their narrow width. Neither the design checks nor KiCad's DRC could see them, because both read the design rather than the files being uploaded.ECAD · impact 74
- A first 3D-printed disc launcher printed as a total failure, with parts fused, slides bound and pins fallen out, after being sized at 2 percent strain while PLA yields around 1.5 percent.Verification · impact 66
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.