Microsoft Todo MCP Service

Instructions

Implementation Reference

• src/todo-index.ts:544-608 (handler)

  Complete implementation of the 'update-task-list' tool: registers the tool with MCP server, defines input schema (listId, displayName), and provides the handler function that authenticates via getAccessToken, makes a PATCH request to Microsoft Graph API endpoint /me/todo/lists/{listId} to update the displayName, and returns success/error messages.

  server.tool(
    "update-task-list",
    "Update the name of an existing task list (top-level container) in Microsoft Todo.",
    {
      listId: z.string().describe("ID of the task list to update"),
      displayName: z.string().describe("New name for the task list")
    },
    async ({ listId, displayName }) => {
      try {
        const token = await getAccessToken();
        if (!token) {
          return {
            content: [
              {
                type: "text",
                text: "Failed to authenticate with Microsoft API",
              },
            ],
          };
        }
  
        // Prepare the request body
        const requestBody = {
          displayName
        };
  
        // Make the API request to update the task list
        const response = await makeGraphRequest<TaskList>(
          `${MS_GRAPH_BASE}/me/todo/lists/${listId}`,
          token,
          "PATCH",
          requestBody
        );
        
        if (!response) {
          return {
            content: [
              {
                type: "text",
                text: `Failed to update task list with ID: ${listId}`,
              },
            ],
          };
        }
  
        return {
          content: [
            {
              type: "text",
              text: `Task list updated successfully!\nNew name: ${response.displayName}`,
            },
          ],
        };
      } catch (error) {
        return {
          content: [
            {
              type: "text",
              text: `Error updating task list: ${error}`,
            },
          ],
        };
      }
    }
  );