geojson_to_kml

Instructions

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "geojson": "<geojson>"
    },
    "name": "geojson_to_kml"
  }
}

Implementation Reference

• src/index.ts:609-647 (handler)

  The handler function that executes the geojson_to_kml tool, parsing arguments, calling tokml library to convert GeoJSON to KML, and formatting the response.

  async geojsonToKML(args: any): Promise<ToolResponse> {
    const { 
      geojson, 
      documentName = 'GeoJSON Conversion', 
      documentDescription = 'Converted from GeoJSON by GIS Format Conversion MCP', 
      nameProperty = 'name',
      descriptionProperty = 'description'
    } = args;
    
    if (!geojson) {
      throw new McpError(
        ErrorCode.InvalidParams,
        'Missing required parameter: geojson'
      );
    }
    
    try {
      console.error('[Converting] GeoJSON to KML');
      
      // Set up options for tokml
      const options = {
        documentName: documentName,
        documentDescription: documentDescription,
        name: nameProperty,
        description: descriptionProperty
      };
      
      // Convert GeoJSON to KML using tokml
      const kml = tokml(geojson, options);
      
      return this.formatToolResponse(kml);
    } catch (error) {
      console.error('[Error] GeoJSON to KML conversion failed:', error);
      throw new McpError(
        ErrorCode.InternalError,
        `GeoJSON to KML conversion failed: ${error instanceof Error ? error.message : String(error)}`
      );
    }
  }

• src/index.ts:221-253 (registration)

  Tool registration in the ListTools handler, defining name, description, and input schema for geojson_to_kml.

  {
    name: 'geojson_to_kml',
    description: 'Convert GeoJSON to KML format',
    inputSchema: {
      type: 'object',
      properties: {
        geojson: {
          type: 'object',
          description: 'GeoJSON object to convert',
        },
        documentName: {
          type: 'string',
          description: 'Name for the KML document',
          default: 'GeoJSON Conversion',
        },
        documentDescription: {
          type: 'string',
          description: 'Description for the KML document',
          default: 'Converted from GeoJSON by GIS Format Conversion MCP',
        },
        nameProperty: {
          type: 'string',
          description: 'Property name in GeoJSON to use as KML name',
          default: 'name',
        },
        descriptionProperty: {
          type: 'string',
          description: 'Property name in GeoJSON to use as KML description',
          default: 'description',
        }
      },
      required: ['geojson'],
    },

• src/index.ts:294-295 (registration)

  Dispatch case in CallToolRequestSchema handler that routes calls to the geojsonToKML method.

  case 'geojson_to_kml':
    return await this.geojsonToKML(request.params.arguments);

• src/index.ts:224-252 (schema)

  Input schema definition for the geojson_to_kml tool, specifying parameters and validation.

  inputSchema: {
    type: 'object',
    properties: {
      geojson: {
        type: 'object',
        description: 'GeoJSON object to convert',
      },
      documentName: {
        type: 'string',
        description: 'Name for the KML document',
        default: 'GeoJSON Conversion',
      },
      documentDescription: {
        type: 'string',
        description: 'Description for the KML document',
        default: 'Converted from GeoJSON by GIS Format Conversion MCP',
      },
      nameProperty: {
        type: 'string',
        description: 'Property name in GeoJSON to use as KML name',
        default: 'name',
      },
      descriptionProperty: {
        type: 'string',
        description: 'Property name in GeoJSON to use as KML description',
        default: 'description',
      }
    },
    required: ['geojson'],

• src/index.ts:21-21 (helper)

  Import of the tokml library used by the geojson_to_kml handler for conversion.

  import tokml from 'tokml';