A review tool for KiCad electronics projects, including circuit diagrams, circuit-board layouts, manufacturing files, parts, and design rules. KiCad is software used to design electronic circuits and printed circuit boards.

Use it to inspect schematics and boards, trace connections, compare a schematic with its PCB, extract a parts list, check electrical and design rules, review power circuits, and analyze manufacturing risks.

It brings information from the circuit diagram and board layout together and helps identify design, connection, manufacturing, and documentation issues.

kicad — Skill for Claude Code by aklofas

About the project

kicad-happy is a collection of coding-agent skills and tools that inspect KiCad schematics, PCB layouts, and Gerber files for electronics design issues. It is for hardware designers who want automated reviews, simulations, datasheet checks, component sourcing, and fabrication preparation. The catalogue entries are its agent skills, rules, plugin, and instruction for integrating this workflow with coding agents.

aklofas/kicad-happy · 1,175 stars · on GitHub

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.

Any agent

npx skills add aklofas/kicad-happy --skill kicad

Clone the repo

git clone --depth 1 https://github.com/aklofas/kicad-happy

Made for: Claude Code.

Or install kicad-happy, 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/aklofas/kicad-happy/kicad/github.svg)](https://agentmods.dev/skills/aklofas/kicad-happy/kicad)

Your own site

<a href="https://agentmods.dev/skills/aklofas/kicad-happy/kicad"><img src="https://agentmods.dev/badge/skills/aklofas/kicad-happy/kicad/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/aklofas/kicad-happy/kicad"><img src="https://agentmods.dev/badge/skills/aklofas/kicad-happy/kicad.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 240 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 18,582 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

Socket pass 12 May 2026
Snyk warn 12 May 2026
NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 4 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium analysis-evasion · line 1
Suspicious Unicode normalization or mixed-script content

Fix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
medium Excessive Agency · line 79
Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
medium Excessive Agency · line 472
Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
medium Agent Snooping · line 480
Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.

How audits are shown

Origin original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00240	$0.18582
Opus 5	$0.00120	$0.09291
Sonnet 5	$0.00048	$0.03716
Haiku 4.5	$0.00024	$0.01858

Measured 6d ago against content hash 3cca142cc352, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

kicad 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.

The scan reads SKILL.md. This mod also ships 31 executable files (review/scripts/_mini_jsonschema.py, review/scripts/build_review_plan.py, review/scripts/deep_review_gate.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/kicad/SKILL.md · 851 lines

How it starts

The opening of the file, as written. The whole thing — 851 lines — stays where its author put it; the contents beside it link to each section on GitHub.

KiCad Project Analysis Skill

Skill	Purpose
`bom`	BOM extraction, enrichment, ordering, and export workflows
`digikey`	Search DigiKey for parts (prototype sourcing)
`mouser`	Search Mouser for parts (secondary prototype source)
`lcsc`	Search LCSC for parts (production sourcing, JLCPCB)
`element14`	Search Newark/Farnell/element14 (international sourcing, reliable datasheets)
`jlcpcb`	PCB fabrication & assembly ordering
`pcbway`	Alternative PCB fabrication & assembly
`spice`	SPICE simulation verification of detected subcircuits
`emc`	EMC pre-compliance risk analysis — consumes schematic + PCB analyzer output

Handoff guidance: Use this skill to parse schematics/PCBs and extract structured data. Hand off to bom for BOM enrichment, pricing, and ordering. Hand off to digikey/mouser/lcsc/element14 for part searches and datasheet fetching. Hand off to jlcpcb/pcbway for fabrication ordering and DFM rule validation. Always run spice for simulation verification during design reviews when any SPICE simulator is installed (check with which ngspice ltspice xyce). Always run emc for EMC pre-compliance risk analysis during design reviews when both schematic and PCB analysis are available. These are not optional — skipping them leaves value-computation errors and EMC risks undetected.

Before analysis: When the user asks to analyze or review a KiCad project, check whether a datasheets/ directory exists in the project. If not, and DigiKey API keys are available (DIGIKEY_CLIENT_ID), offer to sync datasheets first: "I can download datasheets for your components before analysis — this enables pin-level verification and decoupling validation against manufacturer specs. Want me to sync them?" If the user declines or no API keys are set, proceed without datasheets — the analysis works without them but datasheet verification findings won't be available.

Read the full file on GitHub · 851 lines

Files

What ships with it

60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

6d ago Changed 3cca142cc352
11d ago First seen · 851 lines · 240 tokens per session scan A e53345b79c2b

Subscribe to this mod's changes

kicad is a skill published in the GitHub repository aklofas/kicad-happy (1,175 stars, last pushed 9d ago), licensed MIT. It adds 240 tokens to every session and 18,582 once invoked, about $0.0012 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.

Claude Code Hardware and IoT ai-skills design-review eda electronics hardware-design

altium-library

Create and verify Altium schematic symbols (.SchLib) and PCB footprints (.PcbLib) from datasheets and 2D drawings, as code. Use whenever a part library must be made, fixed, measured from a drawing, or checked. Triggers: "make a footprint", "create a symbol", "add this part to the library", "SchLib", "PcbLib"…

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circuit-design

Use when designing an electronic circuit from requirements, choosing topology or regulator type, selecting component values, planning protection circuits, or deciding what goes on a board before schematic capture begins. Also use when the user asks "what components do I need" or "how should I power this.".

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using-kicad

Use when starting any conversation involving electronics, KiCad, PCB design, schematic capture, circuit design, or EDA tasks.

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schematic-plan

Use after circuit-design produces a validated BOM (specs/bom.md) to plan exact component placement coordinates and wiring before schematic capture begins. Pure planning — no file modifications.

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altium-pcb-placement

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Review an Altium schematic (.SchDoc) — find unconnected pins, missing footprint links and net errors, then judge each candidate against the datasheet before calling it a defect. Triggers: "review this schematic", "check my circuit", "ERC", "floating pins", "unconnected", "any missing footprints", "does this schematic…

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