ltspice

ltspice is a skill for Claude Code from Power-Agent/PowerSkills. It costs 103 tokens per session (356 once invoked), scanned A, original, no licence file.

A workflow for LTSpice and PyLTSpice, tools that simulate electronic circuits using the SPICE method. It covers circuit netlists, transient simulations over time, AC simulations, plotted traces, and convergence problems.

In plain words
What is it for?
Use it to create netlists, simulate circuit voltages and currents, inspect waveforms and frequency response, and debug LTSpice convergence.
Why use it?
It provides a repeatable way to set up circuit simulations and examine their results. It also helps investigate why a circuit model fails to reach a solution.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the powerskills-tool plugin — 11 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/power-agent/powerskills/ltspice
Any agent
npx skills add Power-Agent/PowerSkills --skill ltspice
Clone the repo
git clone --depth 1 https://github.com/Power-Agent/PowerSkills

Made for: Claude Code.

Or install powerskills-tool, the plugin that ships this one along with the rest of its 11 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ltspice

README.md
[![agentmods](https://agentmods.dev/badge/skills/power-agent/powerskills/ltspice.svg)](https://agentmods.dev/skills/power-agent/powerskills/ltspice)
Your own site
<a href="https://agentmods.dev/skills/power-agent/powerskills/ltspice"><img src="https://agentmods.dev/badge/skills/power-agent/powerskills/ltspice.svg" alt="Measured on agentmods" height="20"></a>
Per session 103 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 356 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00103 $0.00356
Opus 5 $0.00051 $0.00178
Sonnet 5 $0.00021 $0.00071
Haiku 4.5 $0.00010 $0.00036

Measured 6d ago against content hash 4bfbae984d52, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ltspice scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

powerskills-tool/skills/ltspice/SKILL.md · 27 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 27 lines · 103 tokens per session scan A 4bfbae984d52

Subscribe to this mod's changes

ltspice is a skill published in the GitHub repository Power-Agent/PowerSkills (65 stars, last pushed 14d ago), with no licence file. It adds 103 tokens to every session and 356 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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