Calibre RAG MCP Server

Instructions

Implementation Reference

• server.js:1207-1234 (handler)

  The main handler function for the 'get_project_info' tool. It validates the project_name argument, retrieves the project configuration from the in-memory projects Map, and sends a formatted JSON-RPC success response with project details.

  case 'get_project_info':
      const infoProjName = args.project_name;
      
      if (!infoProjName) {
          this.sendError(id, -32602, 'Missing required parameter: project_name');
          return;
      }
      
      const project = this.projects.get(infoProjName);
      if (!project) {
          this.sendError(id, -32603, `Project '${infoProjName}' not found`);
          return;
      }
      
      this.sendSuccess(id, {
          content: [{
              type: 'text',
              text: `**Project: ${project.name}**\n\n` +
                  `Description: ${project.description}\n` +
                  `Created: ${project.created_at}\n` +
                  `Books: ${project.books.length}\n` +
                  `Chunks: ${project.chunk_count}\n` +
                  `Vector Dimension: ${project.vector_dimension}\n` +
                  `${project.last_updated ? `Last Updated: ${project.last_updated}` : ''}`
          }],
          project: project
      });
      break;

• server.js:1072-1085 (registration)

  Tool registration in the tools/list response, including the tool name, description, and input schema definition (JSON Schema for parameters).

  {
      name: 'get_project_info',
      description: 'Get detailed information about a specific RAG project',
      inputSchema: {
          type: 'object',
          properties: {
              project_name: {
                  type: 'string',
                  description: 'Name of the project'
              }
          },
          required: ['project_name']
      }
  }

• server.js:1075-1084 (schema)

  JSON Schema defining the input parameters for the 'get_project_info' tool: requires a 'project_name' string.

  inputSchema: {
      type: 'object',
      properties: {
          project_name: {
              type: 'string',
              description: 'Name of the project'
          }
      },
      required: ['project_name']
  }