Excalidraw Diagram Skill

为什么要用

核心特性

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)

实时演示

实际使用效果

excalidraw-diagram-skill.replay ▶ 就绪

0/0

安装

选择你的客户端

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

{
  "mcpServers": {
    "excalidraw-diagram-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/coleam00/excalidraw-diagram-skill",
        "~/.claude/skills/excalidraw-diagram-skill"
      ],
      "_inferred": true
    }
  }
}

打开 Claude Desktop → Settings → Developer → Edit Config。保存后重启应用。

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "excalidraw-diagram-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/coleam00/excalidraw-diagram-skill",
        "~/.claude/skills/excalidraw-diagram-skill"
      ],
      "_inferred": true
    }
  }
}

Cursor 使用与 Claude Desktop 相同的 mcpServers 格式。项目级配置优先于全局。

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "excalidraw-diagram-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/coleam00/excalidraw-diagram-skill",
        "~/.claude/skills/excalidraw-diagram-skill"
      ],
      "_inferred": true
    }
  }
}

点击 Cline 侧栏中的 MCP Servers 图标，然后选 "Edit Configuration"。

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "excalidraw-diagram-skill": {
      "command": "git",
      "args": [
        "clone",
        "https://github.com/coleam00/excalidraw-diagram-skill",
        "~/.claude/skills/excalidraw-diagram-skill"
      ],
      "_inferred": true
    }
  }
}

格式与 Claude Desktop 相同。重启 Windsurf 生效。

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "excalidraw-diagram-skill",
      "command": "git",
      "args": [
        "clone",
        "https://github.com/coleam00/excalidraw-diagram-skill",
        "~/.claude/skills/excalidraw-diagram-skill"
      ]
    }
  ]
}

Continue 使用服务器对象数组，而非映射。

~/.config/zed/settings.json

{
  "context_servers": {
    "excalidraw-diagram-skill": {
      "command": {
        "path": "git",
        "args": [
          "clone",
          "https://github.com/coleam00/excalidraw-diagram-skill",
          "~/.claude/skills/excalidraw-diagram-skill"
        ]
      }
    }
  }
}

加入 context_servers。Zed 保存后热重载。

claude mcp add excalidraw-diagram-skill -- git clone https://github.com/coleam00/excalidraw-diagram-skill ~/.claude/skills/excalidraw-diagram-skill

一行命令搞定。用 claude mcp list 验证，claude mcp remove 卸载。

使用场景

实战用法： Excalidraw Diagram Skill

Generate an editable architecture diagram from a description

👤 Engineers documenting systems ⏱ ~15 min intermediate

何时使用： You want a diagram you can iterate on, not a static PNG.

前置条件

Server/skill installed and authenticated — See repo README

步骤

Describe the system

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

→ A .excalidraw file with labeled boxes + arrows
Iterate

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

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

结果： A diagram you actually edit, not redraw.

注意事项

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.

成本与限制

运行它的成本

API 配额: See provider docs for rate limits
每次调用 Token 数: Varies by tool
费用: See repo README for pricing details
提示: Cache tool results and avoid repeated identical calls.

安全

权限、密钥、影响范围

凭据存储： Use environment variables; never commit secrets

数据出站： Tool calls go to the provider's API as documented

故障排查

常见错误与修复

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.

验证： 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.

验证： Reload the file

替代方案