parts: Skill for Claude Code

.claude/skills/adding-parts/SKILL.md

adding-parts is a skill for Claude Code from git-plm/parts. It costs 58 tokens per session (5,430 once invoked), scanned A, original, MIT.

A procedure for adding a manufacturer’s electronic component to a parts library used by KiCad, an electronics design program. It records the part and connects its datasheet, circuit symbol, circuit-board footprint, and 3D model.

In plain words
What is it for?
Use it when adding a part from its manufacturer and part number. It helps assign an internal part number, choose the right category, verify the datasheet, and reuse or create the required KiCad files.
Why use it?
It reduces the risk of creating a library part with incorrect pins, package details, or electrical specifications by checking the manufacturer’s datasheet.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is git-plm/parts's own configuration. It tells Claude Code how to work on parts itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything parts configures →

Reuse

Borrowing it

Nothing to install: this file belongs to git-plm/parts. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/git-plm/parts/main/.claude/skills/adding-parts/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/git-plm/parts

Made for: Claude Code.

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 adding-parts

README.md
[![agentmods](https://agentmods.dev/badge/skills/git-plm/parts/adding-parts/github.svg)](https://agentmods.dev/skills/git-plm/parts/adding-parts)
Your own site
<a href="https://agentmods.dev/skills/git-plm/parts/adding-parts"><img src="https://agentmods.dev/badge/skills/git-plm/parts/adding-parts/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.

agentmods 80×15 button for adding-parts

Your own site · 80×15
<a href="https://agentmods.dev/skills/git-plm/parts/adding-parts"><img src="https://agentmods.dev/badge/skills/git-plm/parts/adding-parts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,430 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00058 $0.05430
Opus 5.5 $0.00023 $0.02172
Sonnet 5.5 $0.00012 $0.01086
Haiku 4.5 $0.00006 $0.00543

Measured 2mo ago against content hash 3acf8d27c7db, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

adding-parts scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sSL -A "$UA" -o /tmp/part.pdf "<manufacturer datasheet url>"
.claude/skills/adding-parts/SKILL.md · 450 lines

How it starts

The opening of the file, as written. The whole thing — 450 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Adding Parts

Overview

Turn a manufacturer + MPN into a complete library part: one row in the right database/g-XXX.csv, a verified datasheet link, a symbol, a footprint, and a 3D model.

Reuse before you create. The KiCad standard library covers most symbols and footprints. A standard footprint also carries its own 3D model, so choosing one correctly removes three tasks at once. Author a symbol or footprint only when nothing standard fits.

The datasheet is the source of truth, not the request. The MPN, package, and specs you are handed are frequently wrong in some detail. Confirm every value against the manufacturer's datasheet before writing a row.

Run every command from the repo root.

Workflow

1. Read the datasheet

Never take component specifications from a text summary of a PDF. WebFetch and similar summarizers fabricate pin counts, package codes, current ratings, and dimensions with total confidence. This has produced a 6-pin symbol for an 8-pin part.

Download the PDF and read the pages as images. Send a browser user-agent and confirm you actually got a PDF:

UA='Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0 Safari/537.36'
curl -sSL -A "$UA" -o /tmp/part.pdf "<manufacturer datasheet url>"
file /tmp/part.pdf    # must say "PDF document"

Manufacturer CDNs (Nexperia and others sit behind Akamai) reject curl's default user-agent with a 403 and return a several-hundred-byte HTML "Access Denied" page. curl -o part.pdf saves that HTML under the .pdf name without error. If you skip the file check you will be reading an error page and inventing specs from nothing. Always confirm before you read.

Analog Devices / Maxim (analog.com/media/..., pdfserv.maximintegrated.com) is a different failure: curl's HTTP/2 request is reset mid-stream (curl: (92) HTTP/2 stream 1 reset by server), and forcing --http1.1 then stalls for minutes even with a browser user-agent. Try --http1.1 once; if it still hangs, do not fight it - ask the user to download the PDF and give you the path (they run it in a browser, which the CDN serves normally). The same CDN also times out the curl -sSI URL check below, so a valid ADI datasheet URL can look broken - confirm the link in a browser rather than trusting a curl non-200/timeout.

Read the full file on GitHub · 450 lines

Files

What ships with it

1 file 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.

  1. 2mo ago Changed 3acf8d27c7db
  2. 2mo ago First seen · 450 lines · 58 tokens per session scan A 33e66f05636c

Subscribe to this mod's changes

adding-parts is a skill published in the GitHub repository git-plm/parts (60 stars, last pushed 3d ago), licensed MIT. It adds 58 tokens to every session and 5,430 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

adding-parts compared with skills from other repositories

adding-parts next to 6 skills from other repositories
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adding-partsgit-plm/partsSkill603d agoMITA58Claude Code
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