Google Maps MCP Server

Instructions

Implementation Reference

• src/index.ts:133-152 (handler)

  The handler function that implements the delete_post tool logic: searches for post by ID in the in-memory posts array, removes it if found, and returns appropriate success or error response.

  async function handleDeletePost(id: string) {
    console.error(`Handling delete_post request for ID: ${id}`);
    
    const initialLength = posts.length;
    const postIndex = posts.findIndex(post => post.id === id);
    
    if (postIndex === -1) {
      return {
        content: [{ type: "text", text: `Error: No post found with ID: ${id}` }],
        isError: true,
      };
    }
    
    posts.splice(postIndex, 1);
    
    return {
      content: [{ type: "text", text: `Success! Post with ID: ${id} deleted.` }],
      isError: false,
    };
  }

• src/index.ts:62-75 (schema)

  Tool definition including schema for delete_post: requires 'id' as string input.

  const DELETE_POST_TOOL: Tool = {
    name: "delete_post",
    description: "Deletes a post by ID.",
    inputSchema: {
      type: "object",
      properties: {
        id: {
          type: "string",
          description: "The ID of the post to delete.",
        },
      },
      required: ["id"],
    },
  };

• src/index.ts:77-82 (registration)

  Registration of delete_post tool (DELETE_POST_TOOL) in the array of tools advertised via listTools endpoint.

  const SIMPLE_TOOLS = [
    GET_WEATHER_TOOL,
    ADD_POST_TOOL,
    GET_POSTS_TOOL,
    DELETE_POST_TOOL,
  ] as const;

• src/index.ts:195-198 (registration)

  Dispatch logic in CallToolRequest handler switch statement that routes delete_post calls to the handleDeletePost function.

  case "delete_post": {
    const { id } = request.params.arguments as { id: string };
    return await handleDeletePost(id);
  }