SPICE Simulation Skill Automatically generates and runs SPICE testbenches for circuit subcircuits detected by the skill's schematic analyzer. Supports ngspice, LTspice, and Xyce (auto-detected). Validates calculated values (filter frequencies, divider ratios, opamp gains) against actual simulation results and produces a structured report. This skill inverts the typical simulation workflow: instead of requiring users to create simulation sources and configure analysis (which 2.5% of KiCad users do), it generates targeted testbenches automatically from the analyzer's subcircuit detections. Rela…