altium-schematic-review

altium-schematic-review is a skill for Claude Code, Codex from ScottJeong/altium-claude-skills. It costs 251 tokens per session (3,122 once invoked), scanned A, original, MIT.

A review process for Altium schematic files, which describe electronic circuits and their connections. It checks for wiring, component-footprint links, and electrical net errors, then compares possible defects with component datasheets.

In plain words
What is it for?
Use it to review unconnected pins, missing PCB footprints, single-pin nets, output conflicts, and undriven nets in an Altium schematic.
Why use it?
It helps distinguish genuine circuit problems from intentionally unused or specially behaving pins, reducing false defect reports.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions CLAUDE.md; mentions AGENTS.md.

Good fit Use it to review unconnected pins, missing PCB footprints, single-pin nets, output conflicts, and undriven nets in an Altium schematic.

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Install with agentmods
npx agentmods add skills/scottjeong/altium-claude-skills/altium-schematic-review
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 ScottJeong/altium-claude-skills --skill altium-schematic-review
Clone the repo
git clone --depth 1 https://github.com/ScottJeong/altium-claude-skills

Made for: Claude Code, Codex.

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 altium-schematic-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/scottjeong/altium-claude-skills/altium-schematic-review/github.svg)](https://agentmods.dev/skills/scottjeong/altium-claude-skills/altium-schematic-review)
Your own site
<a href="https://agentmods.dev/skills/scottjeong/altium-claude-skills/altium-schematic-review"><img src="https://agentmods.dev/badge/skills/scottjeong/altium-claude-skills/altium-schematic-review/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 altium-schematic-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/scottjeong/altium-claude-skills/altium-schematic-review"><img src="https://agentmods.dev/badge/skills/scottjeong/altium-claude-skills/altium-schematic-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 251 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,122 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.
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 $0.00251 $0.03122
Opus 5 $0.00125 $0.01561
Sonnet 5 $0.00050 $0.00624
Haiku 4.5 $0.00025 $0.00312

Measured 12d ago against content hash 637f96e2a031, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

altium-schematic-review 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 12d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/audit_footprints.py, scripts/check_context.py, scripts/net_erc.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.

altium-schematic-review/SKILL.md · 191 lines

How it starts

The opening of the file, as written. The whole thing — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Altium 회로도 검토

검토의 실패는 "못 찾는 것" 보다 "틀린 걸 찾았다고 말하는 것" 이 크다. 후보를 뱉는 건 도구가 하고, 판정은 데이터시트가 한다.

하나만 지킨다면 이것

미결선·플로팅 핀을 찾으면, 그 핀의 데이터시트 Type 과 내부 풀(PU/PD) 유무를 읽기 전에는 결함이라고 부르지 마라.

오판은 세 갈래로 난다. 전부 이 규칙 하나로 걸린다.

오판 유형 실제로 확인해야 할 것
플로팅 입력을 결함이라고 부름 데이터시트 Type 열의 내부 풀 표기, 플로팅을 명시 허용하는 문장
미사용 단자를 고정해야 한다고 함 그 핀이 로직 입력인지 — 아날로그·패스-FET 단자면 관통전류 논리가 적용 안 된다
이미 된 것을 "미구현" 이라고 함 파일이 최신인지, 도구 출력을 끝까지 읽었는지

세 번째가 특히 중요하다 — 도구를 돌려놓고 출력을 끝까지 안 읽으면 도구가 없는 것과 같다.

0. 전제 확인 — 여기서 헛수고가 갈린다

python scripts/check_context.py <프로젝트폴더 또는 .SchDoc>

확인하는 것:

  • 디스크 파일 시각 vs Altium 실행 여부. Altium 이 떠 있으면 메모리가 최신이고 디스크가 구판일 수 있다. 저장 안 한 상태에서 파일만 읽으면 "전원부가 없다", "애너테이션이 안 됐다" 같은 헛다리를 짚는다. Altium 이 떠 있으면 저장했는지 먼저 묻는다
  • 애너테이션 상태 (지정자에 ? 가 남았는지)
  • 로컬 데이터시트 목록 — §3 판정에 쓸 재료가 있는지 미리 안다

1. 헤드리스 1차 — altium_monkey

Altium 없이 돈다. 항상 실행한다.

python scripts/audit_footprints.py <SchDoc> --libs <라이브러리폴더> [...]
python scripts/net_erc.py <SchDoc>
검사
풋프린트 링크 없음 / 실물 못 찾음 PCB 로 못 넘어간다
단일핀 넷 결선 미완 후보. 후보일 뿐이다 → §3
출력 충돌 한 넷에 Output/Power 가 2개 이상
구동원 없는 넷 Input 만 있는 넷
무명 넷 대개 정상(지역 배선). 개수만 본다

파이썬은 altium_monkey 가 설치된 3.12 venv 인터프리터를 쓴다 (이 패키지가 Python <3.13 을 요구한다). 아래에서는 그걸 python 이라고 쓴다.

단락처럼 보이면 회로보다 도구를 먼저 의심한다

전원 단락은 도구 버그의 전형적인 증상이다. 실제로 한 평가 보드에서 전원 레일끼리·리셋과 GND 가 한꺼번에 단락으로 나왔는데 전부 가짜였다.

원인: net_erc.py멀티파트 심볼의 파트 필터를 안 했다. 멀티파트는 파트 레코드마다 전체 핀을 들고 있고 get_pin_hotspot 은 designator 로만 찾으므로 A1/B1/C1 이 같은 좌표로 나와 서로 다른 넷이 합쳐진다. (2026-08-13 에 part_of / pin_in_part 로 고쳤다. 핀의 owner_part_id 는 정상이니 그걸 쓴다.)

그러니 결과가 "보드가 죽는다" 수준이면 보고하기 전에:

  1. 해당 부품이 멀티파트인가 — c.part_count(실제 파트 수 = 이 값 − 1), c.current_part_id
  2. 문제 핀들의 좌표를 직접 찍어본다. 심볼이 정말 겹쳐 놓여 있는지 아닌지 바로 갈린다
  3. 커넥터라면 상대 보드 회로도와 핀맵을 대조한다. 이게 §2 컴파일 대조보다 강한 근거다

후보 목록(단일핀·출력충돌·구동원없음)은 자르지 않고 전부 출력하게 되어 있다. --limit 는 무명넷에만 걸린다. 목록을 잘라 보면 도구를 안 돌린 것과 같다.

Read the full file on GitHub · 191 lines

Files

What ships with it

7 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.

  1. 12d ago First seen · 191 lines · 0 tokens per session scan A 637f96e2a031

Subscribe to this mod's changes

altium-schematic-review is a skill published in the GitHub repository ScottJeong/altium-claude-skills (2 stars, last pushed 15d ago), licensed MIT. It adds 251 tokens to every session and 3,122 once invoked, about $0.0013 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 2026-08-31.

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