read_circuit

41

Apply many .asc edits in one transaction; its addcomponent op returns placed pins, bounding box, and overlap warnings, while other mutation ops are acknowledgement-only

AC/Bode analysis by mode: filter, slope, point, crossing; allsteps=true for per-step results

Cancel a running simulation or batch; kills the simulator process(es)

Check a job's status by ID, or list all jobs

Placed component pin positions, bounding box, attributes

Configure a multi-parameter sweep (linear or log)

Create a new netlist from a content string

Create an empty .asc ready for incremental editing

Structural diff between two circuit files

Rise/fall time and slew rate for one transient edge

Add or remove SPICE directives (.tran, .ac, .lib, ...)

Export .asc to .net via LTspice (with diff against previous export)

Full-fidelity CSV egress of one or more signals to disk (all analysis types; tidy/long for .step); accepts device operating-point params (m1.gm/@m1[gm]) — across a .dc sweep this is the gm/ID-table read; returns the path to compute on yourself

Decimated min/max stat-envelope of a signal over a window — see the shape, then re-request a narrower window to zoom

List components (optional prefix filter) or look up one by reference

Aggregate .MEAS scalars across a sweep or Monte Carlo run

Integrate a .noise spectral density to total RMS over a band (sqrt(∫ density² df)); reports the band and sample count

DC operating point: all node voltages, branch currents, and per-device operating-point params (gm/gds/vth/…) on LTspice (auto .options logopinfo) and ngspice, addressable as m1.gm/@m1[gm]; device= scopes to one device

Read all .PARAM values or set one

Period, frequency, duty cycle, jitter of an oscillating signal

Interactive HTML chart (transient / DC / Bode dual-panel with acstructure corner + non-minimum-phase markers / noise / .step overlay) written next to the circuit and opened in your browser; for seeing shape, not measuring

Signal value at a specific time/frequency (or a device operating-point param, m1.gm/@m1[gm]); stepaxis+stepvalue picks a .step run

Revert an .asc to its pre-edit snapshot from this session

AC peaks with Q factor and -3 dB bandwidth per peak

Reflection coefficient Γ, return loss (dB), and VSWR from an impedance trace vs a reference z0 (worst-match scan or a single frequency)

Run a simulation — sync for short runs, async (job ID) for long ones; sets batch flags, handles the ngspice headerless-raw dialect, routes raw/log artifacts, surfaces convergence/timeout errors (no hand-parsing a rawfile)

Set one component value, or batch-set many via a values dict

Min, max, mean, RMS, peak-to-peak (dB/phase for AC)

Full summary: simulation type, signals, measurements, warnings

Loop-gain stability: all unity-gain / -180° crossings with per-crossing margins

Symbol pin positions, directions, bounding box, description

Total harmonic distortion (THD/THD+N) of a periodic transient via FFT; coherent sampling for an exact result; surfaces every condition

Propagation delay between two transient signals

Every pin/label/wire on a net at a pin / net:NAME / (x,y); flags accidental shorts

Transient response by mode: step overshoot/undershoot/settling, or disturbance droop/overshoot/recovery

Static pre-flight checks on a netlist or schematic before simulation

Wire two pins by reference with waypoint routing; validates pin collisions, junctions, diagonals (formerly connect, kept as a deprecated alias)