Excalidraw MCP Server

Instructions

Implementation Reference

• src/index.js:510-521 (handler)

  Handler logic for the 'align_elements' tool. Parses input parameters using AlignElementsSchema, logs the alignment request, and returns a dummy success response without performing actual alignment of elements.

  case 'align_elements': {
    const params = AlignElementsSchema.parse(args);
    const { elementIds, alignment } = params;
    
    // Implementation would align elements based on the specified alignment
    logger.info('Aligning elements', { elementIds, alignment });
    
    const result = { aligned: true, elementIds, alignment };
    return {
      content: [{ type: 'text', text: JSON.stringify(result, null, 2) }]
    };
  }

• src/index.js:60-63 (schema)

  Zod schema defining the input structure for the 'align_elements' tool: array of element IDs and alignment type (left, center, right, top, middle, bottom).

  const AlignElementsSchema = z.object({
    elementIds: z.array(z.string()),
    alignment: z.enum(['left', 'center', 'right', 'top', 'middle', 'bottom'])
  });

• src/index.js:207-222 (registration)

  Registration of the 'align_elements' tool in the MCP server's capabilities, providing description and input schema.

  align_elements: {
    description: 'Align elements to a specific position',
    inputSchema: {
      type: 'object',
      properties: {
        elementIds: { 
          type: 'array',
          items: { type: 'string' }
        },
        alignment: { 
          type: 'string', 
          enum: ['left', 'center', 'right', 'top', 'middle', 'bottom'] 
        }
      },
      required: ['elementIds', 'alignment']
    }

• src/index.js:778-793 (registration)

  Duplicate registration of the 'align_elements' tool in the ListToolsRequestHandler response.

  name: 'align_elements',
  description: 'Align elements to a specific position',
  inputSchema: {
    type: 'object',
    properties: {
      elementIds: { 
        type: 'array',
        items: { type: 'string' }
      },
      alignment: { 
        type: 'string', 
        enum: ['left', 'center', 'right', 'top', 'middle', 'bottom'] 
      }
    },
    required: ['elementIds', 'alignment']
  }