excalidraw-skill MCP — Cas d'usage, Installer & Démo en direct

Pourquoi l'utiliser

Fonctionnalités clés

Five diagram modes with specialized layout rules (flowchart, architecture, sequence, mind map, swimlane)
Auto-invokes when Claude detects architecture-worthy discussions
Three export paths: Kroki (curl, zero-install), local CLI (PNG/SVG), editable .excalidraw
Accepts Chinese or English natural-language input
Hand-drawn aesthetic avoids the sterile-looking AI diagram problem

Démo en direct

Aperçu en pratique

excalidraw-skill.replay ▶ prêt

0/0

Installer

Choisissez votre client

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "excalidraw-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/Agents365-ai/excalidraw-skill",
        "~/.claude/skills/excalidraw-skill"
      ],
      "_inferred": true
    }
  }
}

Ouvrez Claude Desktop → Settings → Developer → Edit Config. Redémarrez après avoir enregistré.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "excalidraw-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/Agents365-ai/excalidraw-skill",
        "~/.claude/skills/excalidraw-skill"
      ],
      "_inferred": true
    }
  }
}

Cursor utilise le même schéma mcpServers que Claude Desktop. La config projet l'emporte sur la globale.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "excalidraw-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/Agents365-ai/excalidraw-skill",
        "~/.claude/skills/excalidraw-skill"
      ],
      "_inferred": true
    }
  }
}

Cliquez sur l'icône MCP Servers dans la barre latérale Cline, puis "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "excalidraw-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/Agents365-ai/excalidraw-skill",
        "~/.claude/skills/excalidraw-skill"
      ],
      "_inferred": true
    }
  }
}

Même format que Claude Desktop. Redémarrez Windsurf pour appliquer.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "excalidraw-skill",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/Agents365-ai/excalidraw-skill",
        "~/.claude/skills/excalidraw-skill"
      ]
    }
  ]
}

Continue utilise un tableau d'objets serveur plutôt qu'une map.

~/.config/zed/settings.json

{
  "context_servers": {
    "excalidraw-skill": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/Agents365-ai/excalidraw-skill",
          "~/.claude/skills/excalidraw-skill"
        ]
      }
    }
  }
}

Ajoutez dans context_servers. Zed recharge à chaud à la sauvegarde.

claude mcp add excalidraw-skill -- git clone https://github.com/Agents365-ai/excalidraw-skill ~/.claude/skills/excalidraw-skill

Une seule ligne. Vérifiez avec claude mcp list. Supprimez avec claude mcp remove.

Cas d'usage

Usages concrets : excalidraw-skill

Sketch a microservices architecture diagram from a prose description

👤 Engineers writing design docs ⏱ ~10 min beginner

Quand l'utiliser : You're writing an RFC and want a diagram without opening a separate tool.

Prérequis

Skill cloned to ~/.claude/skills/excalidraw-skill — git clone https://github.com/Agents365-ai/excalidraw-skill ~/.claude/skills/excalidraw-skill
Network access to kroki.io (zero-install path) — No setup if outbound HTTPS works

Déroulement

Describe the system

Use the excalidraw skill — draw a microservices e-commerce architecture with clients, API gateway, 4 services, RabbitMQ, and per-service databases.✓ Copié

→ Claude generates layout + exports an SVG via Kroki
Tweak and re-export

Add Redis in front of the product service and regenerate.✓ Copié

→ Updated diagram with Redis inserted, layout re-balanced
Save editable version

Save as .excalidraw so I can edit it on excalidraw.com.✓ Copié

→ File saved to CWD

Résultat : A hand-drawn-style architecture diagram in your doc in under 5 minutes.

Pièges

Diagram is cluttered for 10+ components — Ask Claude to group by tier first; the skill has layout rules for that

Combiner avec : filesystem

Generate a sequence diagram from an API interaction you just debugged

👤 Backend engineers documenting flows for teammates ⏱ ~10 min beginner

Quand l'utiliser : You finally figured out the 5-service OAuth dance and want to document it.

Déroulement

Paste the log or describe the flow

Excalidraw skill — sequence diagram: user → frontend → auth service → identity provider → callback → session.✓ Copié

→ Sequence diagram with correct arrows and return messages
Refine

Add the error path when the IdP returns 401.✓ Copié

→ Alternative flow rendered distinctly

Résultat : A sequence diagram you can drop into the PR description.

Combinaisons

Associez-le à d'autres MCPs pour un effet X10

excalidraw-skill + filesystem

Save generated diagrams directly into your docs folder

Generate the architecture diagram and save it to docs/architecture/v2.svg.✓ Copié

excalidraw-skill + github

Attach the diagram to a PR by committing it alongside the spec

Create the diagram, commit to docs/, and reference it in the PR body.✓ Copié

Outils

Ce que ce MCP expose

Outil	Entrées	Quand appeler	Coût
generate_flowchart	process description	Process has decision points and sequential steps	0 via Kroki, 0 local
generate_architecture	components + relationships	System has tiers or service boundaries	0
generate_sequence	actors + messages	Documenting a time-ordered interaction	0
export_png	diagram ID	Need rasterized image for docs that don't support SVG	0 (requires local CLI)

Coût et limites

Coût d'exécution

Quota d'API: Kroki has no explicit quota but don't hammer it
Tokens par appel: Diagram specs are compact (<2k tokens typically)
Monétaire: Free — skills are local files. Kroki is free.
Astuce: Use Kroki for one-offs, install excalidraw-brute-export-cli only if you need offline.

Sécurité

Permissions, secrets, portée

Stockage des identifiants : No credentials — pure prompts

Sortie de données : Kroki path sends your diagram spec to kroki.io. Local CLI path sends nothing.

If your diagrams leak system internals, use the local CLI path instead of Kroki.

Dépannage

Erreurs courantes et correctifs

Skill not invoked when you ask for a diagram

Mention 'excalidraw' or 'diagram' explicitly; or verify the clone exists.

Vérifier : ls ~/.claude/skills/excalidraw-skill/SKILL.md

SKILL.md frontmatter wrong

Re-clone; the frontmatter drives auto-activation.

Vérifier : head ~/.claude/skills/excalidraw-skill/SKILL.md

Wrong trigger keywords — Claude writes Mermaid instead

Say 'excalidraw' explicitly; 'draw a diagram' alone can pick other tools.

Alternatives

excalidraw-skill vs autres

Alternative	Quand l'utiliser	Compromis
Mermaid via markdown	Your docs already render Mermaid natively (GitHub, etc.)	No hand-drawn aesthetic, less layout control
drawio via desktop app	You want click-heavy manual layout	Not agent-driven

Plus

Ressources

📖 Lire le README officiel sur GitHub

🐙 Voir les issues ouvertes

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