A tscircuit user tried to put an engineering field, Max_Current_A, on a footprint so it would end up in .kicad_pcb and .kicad_sch. zod dropped every property except the known ones, so the field was gone from circuit.json and both KiCad files, with no warning. KiCad 10.0.8 itself keeps custom fields fine. Engineering attributes get lost silently between the code-based design tool and the EDA file.
Recurring agent failure issue in props (tscircuit)
What engineers report
A recurring agent failure problem in props (tscircuit) that mostly hits the electrical engineer.
Failure pattern: validation / silent 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 props (tscircuit).
Evidence
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.