Excalidraw

Generate valid .excalidraw JSON files that render correctly in excalidraw.com or VS Code extensions.

Features

📐 All element types: Shapes, text, arrows, lines, freedraw, images, frames, and custom polygons
🔗 Proper bindings: Text labels inside shapes, arrows connected to shapes
🎨 Accurate properties: Values and constants derived from Excalidraw source code

Installation

Use the plugin manager UI in Claude Code.

Run /plugin in Claude Code Enter
Go to Marketplaces Tab
Select + Add Marketplace Enter
Type tenzir/claude-plugins Enter
Install excalidraw from the plugin list

Run the CLI command with your preferred scope.

# Install to user scope (default)
claude plugin install excalidraw@tenzir

# Install to project scope (shared with team)
claude plugin install excalidraw@tenzir --scope project

# Install to local scope (gitignored)
claude plugin install excalidraw@tenzir --scope local

Add the marketplace and plugin to your settings file.

{
  "extraKnownMarketplaces": {
    "tenzir": {
      "source": {
        "source": "github",
        "repo": "tenzir/claude-plugins"
      }
    }
  },
  "enabledPlugins": {
    "excalidraw@tenzir": true
  }
}

Capabilities

Type	Name	Description
Skill	`diagramming`	Generate Excalidraw diagrams. Use when creating flowcharts, ER diagrams, sequence diagrams, block diagrams, or any .excalidraw files.

Usage

`excalidraw:diagramming` skill

Activates when creating or editing .excalidraw files. Provides the file format structure and progressively loads element and styling references as needed.

When it activates:

Creating diagrams or .excalidraw files
Asking about Excalidraw element structure or properties

Example prompts:

Create a diagram with three boxes connected by arrows

Draw a state machine with Start, Processing, and Done states

Make a simple org chart with a root node and three children

Changelog

View the release history and recent changes.

View on GitHub

Browse the plugin source code and documentation.