Skill: matthewyin/diagram-generator (version 1.1.5)

--- name: diagram-generator description: Generate Draw.io architecture diagrams, Mermaid diagrams, and Excalidraw sketches from structured specifications using the mcp-diagram-generator MCP server. --- # Diagram Generator Generate Draw.io architecture diagrams, Mermaid flowcharts/sequence/class/ER diagrams, and Excalidraw whiteboard sketches from structured JSON specifications using the `mcp-diagram-generator` MCP server. --- ## MCP Server Setup Add one of the following configurations to your system settings (e.g., `mcp_config.json` or IDE configurations): ### Option A: Using NPM Remote Package (Recommended) ```json { "mcpServers": { "diagram-generator": { "command": "npx", "args": ["-y", "mcp-diagram-generator"] } } } ``` ### Option B: Using Local Path ```json { "mcpServers": { "diagram-generator": { "command": "node", "args": ["/your/path/to/mcp-diagram-generator/dist/index.js"] } } } ``` --- ## Core Workflow 1. **Select Format**: Choose the best target format among `drawio`, `mermaid`, and `excalidraw` based on your needs. 2. **Define Layout**: Specify `geometry` coordinates for precise placement (Note: coordinates for child elements inside containers must be relative to the top-left of their direct parent container). For automatic layout, set coordinates to `0` or omit them to trigger the generator's grid layout. 3. **Generate**: Call `generate_diagram` to render and save the file. --- ## Reference Guide (Read on-demand 🌟) To ensure rendering quality, **you must read the following guides on-demand using `view_file`** before generating diagrams: * 📘 **Format Selection Matrix** ➡️ [format-selection-guide.md](references/format-selection-guide.md) * Helps decide when to use Draw.io, Mermaid, or Excalidraw. * 📘 **JSON Protocol & Schema Guide** ➡️ [json-schema-guide.md](references/json-schema-guide.md) * Contains the complete JSON schema and parameter templates for Mermaid flowcharts and sequence diagrams. * 📘 **Network Topology & Auto-Layout Specs** ➡️ [topology-and-layout-spec.md](references/topology-and-layout-spec.md) * **For Network Diagrams**: Contains the 4-level nesting hierarchy (Environment ➡️ Datacenter ➡️ Zone ➡️ Device) and device color definitions. * **For Grid Layouts**: Contains Agent-specific mathematical layout formulas. * 📘 **Network Topology Templates** ➡️ [network-topology-examples.md](references/network-topology-examples.md) * Provides complete JSON templates for nested network topologies. * 📘 **Troubleshooting & Setup** ➡️ [setup-and-troubleshooting.md](references/setup-and-troubleshooting.md) * Read this file to troubleshoot errors such as `Schema Validation Error`, `Directory Not Found`, or `Wrong File Extension`. --- ## Best Practices 1. **Use Configuration Management**: Initialize paths with `init_config()` so you do not need to specify `output_path` in `generate_diagram`. 2. **Follow Naming & ID Standards**: Use descriptive prefixes (e.g., `env-`, `dc-`, `router-`) and ensure all element IDs are unique. 3. **Bind Edges to Parent Container**: For Draw.io diagrams, set the parent of an Edge to the shared Container ID when both source and target are inside that container, ensuring links move together with the container.


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