actdiag

actdiag diagram (uml-mcp)

diagram_type: actdiag
Backend: actdiag
Output formats: png, svg, pdf

Activity and workflow diagrams (blockdiag family)

Load the workflow skill uml-mcp-diagrams for URL-first replies, progressive discovery, and which MCP tool to call. This file is notation only; it does not add an MCP tool.

Styling

• Same family as blockdiag; label lanes and edges clearly.
• No MCP theme param.

Starter template

actdiag {
  input -> process -> output
  lane user {
    input [label = "Input"];
    output [label = "Output"];
  }
  lane system {
    process [label = "Process"];
  }
}

Example

actdiag {
  write -> convert -> image
  lane user {
    label = "User"
    write [label = "Writing text"];
    image [label = "Get diagram image"];
  }
  lane Kroki {
    convert [label = "Convert text to image"];
  }
}

Render with uml-mcp

1. Set diagram_type to actdiag exactly.
2. Call validate_uml when the source is untrusted (prefer strict: true for Mermaid sequence).
3. Call generate_uml, generate_uml_image (chat PNG), or generate_uml_batch.
4. Pass theme when this skill's Themes section lists supported values.
5. Surface the returned url / playground (see the workflow skill).

Confirm formats with uml://formats or list_diagram_types when unsure.