freemcplab / 디렉터리 / 플레이그라운드 / Excalidraw Diagram Skill

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Excalidraw Diagram Skill

Name: Excalidraw Diagram Skill (Claude Skill)
Author: coleam00

제작: coleam00 · coleam00/excalidraw-diagram-skill

Skill that gives Claude the ability to generate Excalidraw diagrams.

This skill teaches Claude to produce Excalidraw .excalidraw JSON files — architecture diagrams, sequence diagrams, mind maps — that open natively in Excalidraw and stay editable. No screenshot-and-pray.

▶ 데모 보기 📦 설치 💡 사용 사례

왜 쓰나요

핵심 기능

Outputs native .excalidraw JSON (fully editable)
Pre-baked layouts for architecture, sequence, flow, mind map
Smart auto-layout to avoid label overlap
Annotation arrows with proper anchoring
Works in any agent (Claude Code, Cursor, Codex)

라이브 데모

실제 사용 모습

excalidraw-diagram-skill.replay ▶ 준비됨

0/0

설치

작성자 저장소 · Claude Skills 공식 문서

사용 사례

실전 활용법: Excalidraw Diagram Skill

Generate an editable architecture diagram from a description

👤 Engineers documenting systems ⏱ ~15 min intermediate

언제 쓸까: You want a diagram you can iterate on, not a static PNG.

사전 조건

Server/skill installed and authenticated — See repo README

흐름

Describe the system

Using the Excalidraw skill, draw our auth flow: SPA → API gateway → auth-service → Postgres → emit event to Kafka.✓ 복사됨

→ A .excalidraw file with labeled boxes + arrows
Iterate

Add a Redis cache between API gateway and auth-service.✓ 복사됨

→ Updated file with the new node + correct re-routed arrows

결과: A diagram you actually edit, not redraw.

함정

For very large diagrams (>30 nodes) auto-layout struggles — For very large diagrams (>30 nodes) auto-layout struggles — split into multiple diagrams or group by concern.

비용 및 제한

운영 비용

API 쿼터: See provider docs for rate limits
호출당 토큰: Varies by tool
금액: See repo README for pricing details
팁: Cache tool results and avoid repeated identical calls.

보안

권한, 시크릿, 파급범위

자격 증명 저장: Use environment variables; never commit secrets

데이터 외부 송신: Tool calls go to the provider's API as documented

문제 해결

자주 발생하는 오류와 해결

file doesn't open in Excalidraw

Make sure the file ends with .excalidraw and is valid JSON. The skill outputs both, but check the extension.

확인: Open at excalidraw.com → load file

arrows pointing wrong way

Excalidraw's arrow startBinding/endBinding matters. The skill's templates handle it, but custom edits can break it.

확인: Reload the file

대안