Goal Story MCP Server

Instructions

Implementation Reference

• src/index.ts:705-722 (handler)

  MCP tool registration and handler implementation. Makes a GET request to /stories/{id} using the doRequest helper and formats the response as text content.

  server.tool(
    READ_ONE_STORY_TOOL.name,
    READ_ONE_STORY_TOOL.description,
    READ_ONE_STORY_TOOL.inputSchema.shape,
    async (args) => {
      const url = `${GOALSTORY_API_BASE_URL}/stories/${args.id}`;
      const result = await doRequest(url, "GET");
      return {
        content: [
          {
            type: "text",
            text: `Story data:\n${JSON.stringify(result, null, 2)}`,
          },
        ],
        isError: false,
      };
    },
  );

• src/tools.ts:400-407 (schema)

  Tool definition including name, description, and Zod input schema requiring a story ID.

  export const READ_ONE_STORY_TOOL = {
    name: "goalstory_read_one_story",
    description:
      "Retrieve a specific story to revisit the visualization and mental imagery created for goal achievement.",
    inputSchema: z.object({
      id: z.string().describe("Unique identifier of the story to retrieve."),
    }),
  };

• src/types.ts:115-117 (schema)

  TypeScript interface defining the input shape for the tool.

  export interface GoalstoryReadOneStoryInput {
    id: string;
  }

• src/index.ts:62-122 (helper)

  Shared helper function used by all tool handlers to perform HTTP requests to the backend API with authentication, error handling, and logging.

  async function doRequest<T = any>(
    url: string,
    method: string,
    body?: unknown,
  ): Promise<T> {
    console.error("Making request to:", url);
    console.error("Method:", method);
    console.error("Body:", body ? JSON.stringify(body) : "none");
  
    try {
      const response = await axios({
        url,
        method,
        headers: {
          "Content-Type": "application/json",
          Authorization: `Bearer ${GOALSTORY_API_TOKEN}`,
        },
        data: body,
        timeout: 10000, // 10 second timeout
        validateStatus: function (status) {
          return status >= 200 && status < 500; // Accept all status codes less than 500
        },
      });
      console.error("Response received:", response.status);
      return response.data as T;
    } catch (err) {
      console.error("Request failed with error:", err);
  
      if (axios.isAxiosError(err)) {
        if (err.code === "ECONNABORTED") {
          throw new Error(
            `Request timed out after 10 seconds. URL: ${url}, Method: ${method}`,
          );
        }
        if (err.response) {
          // The request was made and the server responded with a status code
          // that falls out of the range of 2xx
          throw new Error(
            `HTTP Error ${
              err.response.status
            }. URL: ${url}, Method: ${method}, Body: ${JSON.stringify(
              body,
            )}. Error text: ${JSON.stringify(err.response.data)}`,
          );
        } else if (err.request) {
          // The request was made but no response was received
          throw new Error(
            `No response received from server. URL: ${url}, Method: ${method}`,
          );
        } else {
          // Something happened in setting up the request that triggered an Error
          throw new Error(`Request setup failed: ${err.message}`);
        }
      } else {
        // Something else happened
        throw new Error(
          `Unexpected error: ${err instanceof Error ? err.message : String(err)}`,
        );
      }
    }
  }