Lulu Print MCP Server

Instructions

Implementation Reference

• src/server.ts:26-53 (handler)

  The handler function implementing the calculate-print-job-cost tool logic with mock cost calculation.

  async ({ product_id, quantity }) => {
    try {
      // TODO: Implement actual calculation with API
      const mockCost = {
        product_id,
        quantity,
        unit_cost: 10.99,
        total_cost: 10.99 * quantity,
        currency: "USD",
        message: "This is a mock calculation - actual API integration pending"
      };
      
      return {
        content: [{
          type: "text" as const,
          text: JSON.stringify(mockCost, null, 2)
        }]
      };
    } catch (error: any) {
      return {
        content: [{
          type: "text" as const,
          text: `Error: ${error.message}`
        }],
        isError: true
      };
    }
  }

• src/server.ts:22-25 (schema)

  Zod schema defining input parameters for the calculate-print-job-cost tool.

  {
    product_id: z.string().describe("Lulu product ID"),
    quantity: z.number().int().positive().describe("Number of copies")
  },

• src/server.ts:19-54 (registration)

  Registration of the calculate-print-job-cost tool on the MCP server instance.

  server.tool(
    "calculate-print-job-cost",
    "Calculate the cost of a print job without creating it",
    {
      product_id: z.string().describe("Lulu product ID"),
      quantity: z.number().int().positive().describe("Number of copies")
    },
    async ({ product_id, quantity }) => {
      try {
        // TODO: Implement actual calculation with API
        const mockCost = {
          product_id,
          quantity,
          unit_cost: 10.99,
          total_cost: 10.99 * quantity,
          currency: "USD",
          message: "This is a mock calculation - actual API integration pending"
        };
        
        return {
          content: [{
            type: "text" as const,
            text: JSON.stringify(mockCost, null, 2)
          }]
        };
      } catch (error: any) {
        return {
          content: [{
            type: "text" as const,
            text: `Error: ${error.message}`
          }],
          isError: true
        };
      }
    }
  );