XMI MCP Server

An MCP (Model Context Protocol) server for querying SysML XMI exports. This server parses the MTConnect SysML model and provides tools for exploring packages, classes, enumerations, and documentation.

Installation

npm install
npm run build

Loading into Claude Code on Windows

Option 1: Add to User Settings (Recommended)

1. Open your Claude Code settings file at:

   %APPDATA%\Claude\claude_desktop_config.json
   

   Or create it if it doesn't exist.

2. Add the MCP server configuration:

   {
     "mcpServers": {
       "xmimcp": {
         "command": "node",
         "args": ["C:\\source\\vibes\\xmimcp\\dist\\index.js"]
       }
     }
   }

3. Restart Claude Code for the changes to take effect.

Option 2: Using a Custom XMI File Path

If your XMI file is in a different location, set the XMI_FILE_PATH environment variable:

{
  "mcpServers": {
    "xmimcp": {
      "command": "node",
      "args": ["C:\\source\\vibes\\xmimcp\\dist\\index.js"],
      "env": {
        "XMI_FILE_PATH": "C:\\path\\to\\your\\model.xml"
      }
    }
  }
}

Option 3: Project-Specific Configuration

Create a .mcp.json file in your project root:

{
  "mcpServers": {
    "xmimcp": {
      "command": "node",
      "args": ["C:\\source\\vibes\\xmimcp\\dist\\index.js"]
    }
  }
}

Verifying the Server is Loaded

After restarting Claude Code, you can verify the server is loaded by asking Claude to use one of the tools, such as:

• "Get model statistics from the XMI server"
• "List all packages in the SysML model"

Tool Reference

Package Tools

list_packages

List all packages in the SysML model with optional filtering.

Parameters:

Parameter	Type	Description
parentPackage	string	Filter to children of this package (by name or xmi:id)
recursive	boolean	Include nested packages recursively (default: false)
namePattern	string	Regex pattern to filter package names

Example:

List all packages that contain "Asset" in their name

---

get_package

Get detailed information about a specific package including its children.

Parameters:

Parameter	Type	Required	Description
identifier	string	Yes	Package name or xmi:id

Returns: Package details including child packages, classes, and enumerations.

Example:

Get details of the "Asset Information Model" package

---

Class/Block Tools

find_classes

Find classes/blocks by name, pattern, or package.

Parameters:

Parameter	Type	Description
name	string	Exact class name to find
namePattern	string	Regex pattern for class names
package	string	Limit search to this package (name or id)
recursive	boolean	Search in nested packages (default: true)
includeAbstract	boolean	Include abstract classes (default: true)

Example:

Find all classes with "Tool" in their name
Find classes in the "Cutting Tool" package

---

get_class_details

Get full details of a class including properties, inheritance, and documentation.

Parameters:

Parameter	Type	Required	Description
identifier	string	Yes	Class name or xmi:id
includeInherited	boolean	No	Include inherited properties from parent classes (default: false)

Returns: Complete class information including:

• Properties with types and multiplicity
• Parent classes (generalizations)
• Stereotypes (e.g., SysML Block)
• Documentation

Example:

Get details of the "CuttingTool" class with inherited properties

---

get_inheritance_hierarchy

Get the inheritance chain for a class showing ancestors and/or descendants.

Parameters:

Parameter	Type	Required	Description
identifier	string	Yes	Class name or xmi:id
direction	string	No	One of: "ancestors", "descendants", "both" (default: "both")

Example:

Show the inheritance hierarchy for the "Asset" class

---

Enumeration Tools

list_enumerations

List all enumerations with optional filtering.

Parameters:

Parameter	Type	Description
package	string	Filter to a specific package
namePattern	string	Regex pattern for enumeration names

Example:

List all enumerations containing "Type" in their name

---

get_enumeration

Get details of an enumeration including all literal values and their documentation.

Parameters:

Parameter	Type	Required	Description
identifier	string	Yes	Enumeration name or xmi:id

Returns: Enumeration details with all literals and their documentation.

Example:

Get all values of the "DataItemSubTypeEnum" enumeration

---

Search Tools

search_documentation

Full-text search across all documentation and comments in the model.

Parameters:

Parameter	Type	Required	Description
query	string	Yes	Search terms (space-separated, all must match)
elementTypes	array	No	Limit to: "class", "enumeration", "package", "datatype"
limit	number	No	Maximum results (default: 50)

Example:

Search documentation for "cutting tool life"
Search for "spindle" in class documentation only

---

search_by_name

Search for any element by name across the entire model.

Parameters:

Parameter	Type	Required	Description
query	string	Yes	Name or partial name to search for
exactMatch	boolean	No	Require exact name match (default: false)
elementTypes	array	No	Limit to: "class", "enumeration", "package", "datatype"

Example:

Search for elements named "Asset"
Find all elements containing "Observation"

---

Reference Tools

resolve_reference

Resolve an xmi:id reference to get element details. Useful for following cross-references in the model.

Parameters:

Parameter	Type	Required	Description
xmiId	string	Yes	The xmi:id to resolve

Example:

Resolve reference "_19_0_3_68e0225_1620206731259_178927_703"

---

Utility Tools

get_model_statistics

Get statistics about the loaded SysML model.

Parameters: None

Returns:

{
  "packageCount": 120,
  "classCount": 1179,
  "enumerationCount": 106,
  "dataTypeCount": 30,
  "propertyCount": 1924,
  "associationCount": 231
}

---

Troubleshooting

Server not loading

1. Ensure Node.js is installed and in your PATH
2. Verify the paths in the configuration use double backslashes (\\) on Windows
3. Check that npm run build completed successfully

XMI file not found

1. Verify the XMI file exists at the expected path
2. Use the XMI_FILE_PATH environment variable to specify a custom location

Tools not appearing

1. Restart Claude Code after updating the configuration
2. Check the Claude Code logs for any error messages

Development

# Install dependencies
npm install

# Build
npm run build

# Run directly (for testing)
npm start

License

MIT