spicebridge (clanker-lover)ECADConfidence: Medium

SPICEBridge, an MCP server letting an agent simulate circuits in ngspice, shipped both built-in Sallen-Key filter templates wired for positive feedback; nobody saw it because the ideal op-amp model has no dynamics, but with a single-pole op-amp model the output ran to 7e297 V and ngspice aborted, and the Butterworth values were also off.

Impact Analysis

Persona

Electrical Engineer

Team Size Impact

5x Multiplier

Prototype Delay

3 Days

Est. Annual Cost

$30,000

1 user · 1 month240 min
Rest of team960 min
Rest of year13,200 min

monthly_minutes × 12 × team_multiplier ÷ 60 × $75/hr = $30k/yr

$75/hr assumed rate.

Annual team-minutes decomposed from the reported monthly inputs.

Evidence & Sources

1 Sources

clanker-lover/spicebridge PR #10: Fix op-amp feedback and Butterworth values in Sallen-Key templates

github.com

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Analyst Notes

From the Grok pain-radar digest, Oct 25-26 2026 (Oct 25 daytime to Oct 26 morning slots). Verified live 2026-10-26: issue/PR read on GitHub; title and state confirmed.