excalidraw-skill MCP — Casos de uso, Instalar & Demo ao vivo

Por que usar

Principais recursos

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

Demo ao vivo

Como fica na prática

excalidraw-skill.replay ▶ pronto

0/0

Instalar

Escolha seu cliente

~/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
    }
  }
}

Abra Claude Desktop → Settings → Developer → Edit Config. Reinicie após salvar.

~/.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 usa o mesmo esquema mcpServers que o Claude Desktop. Config de projeto vence a global.

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
    }
  }
}

Clique no ícone MCP Servers na barra lateral do Cline, depois "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
    }
  }
}

Mesmo formato do Claude Desktop. Reinicie o Windsurf para aplicar.

~/.continue/config.json

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

O Continue usa um array de objetos de servidor em vez de um 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"
        ]
      }
    }
  }
}

Adicione em context_servers. Zed recarrega automaticamente ao salvar.

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

Uma linha só. Verifique com claude mcp list. Remova com claude mcp remove.

Casos de uso

Usos do mundo real: excalidraw-skill

Sketch a microservices architecture diagram from a prose description

👤 Engineers writing design docs ⏱ ~10 min beginner

Quando usar: You're writing an RFC and want a diagram without opening a separate tool.

Pré-requisitos

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

Fluxo

Describe the system

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

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

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

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

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

→ File saved to CWD

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

Armadilhas

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

Combine com: filesystem

Generate a sequence diagram from an API interaction you just debugged

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

Quando usar: You finally figured out the 5-service OAuth dance and want to document it.

Fluxo

Paste the log or describe the flow

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

→ Sequence diagram with correct arrows and return messages
Refine

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

→ Alternative flow rendered distinctly

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

Combinações

Combine com outros MCPs para 10× de alavancagem

excalidraw-skill + filesystem

Save generated diagrams directly into your docs folder

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

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.✓ Copiado

Ferramentas

O que este MCP expõe

Ferramenta	Entradas	Quando chamar	Custo
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)

Custo e limites

O que custa rodar

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

Segurança

Permissões, segredos, alcance

Armazenamento de credenciais: No credentials — pure prompts

Saída de dados: 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.

Solução de problemas

Erros comuns e correções

Skill not invoked when you ask for a diagram

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

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

SKILL.md frontmatter wrong

Re-clone; the frontmatter drives auto-activation.

Verificar: 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.

Alternativas

excalidraw-skill vs. outros

Alternativa	Quando usar	Troca
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

Mais

Recursos

📖 Leia o README oficial no GitHub

🐙 Ver issues abertas

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