MCP TaskManager

Instructions

Implementation Reference

• index.ts:529-561 (handler)

  The main handler function for the update_task tool. Finds the specified request and task, validates that the task is editable (not done or approved), applies optional title and description updates, persists changes via saveTasks, and returns a confirmation message with the updated task progress table.

  public async updateTask(
    requestId: string,
    taskId: string,
    updates: { title?: string; description?: string }
  ) {
    const request = this.data.requests.find((r) => r.requestId === requestId);
    if (!request) {
      throw new Error("Request not found");
    }
  
    const task = request.tasks.find((t) => t.id === taskId);
    if (!task) {
      throw new Error("Task not found");
    }
  
    if (task.done || task.approved) {
      throw new Error("Cannot update completed or approved tasks");
    }
  
    if (updates.title) {
      task.title = updates.title;
    }
    if (updates.description) {
      task.description = updates.description;
    }
  
    await this.saveTasks();
  
    return {
      message:
        "Task updated successfully.\n" + this.formatTaskProgressTable(requestId),
    };
  }

• index.ts:78-83 (schema)

  Zod schema defining the input validation for update_task: required requestId and taskId, optional title and description.

  const UpdateTaskSchema = z.object({
    requestId: z.string(),
    taskId: z.string(),
    title: z.string().optional(),
    description: z.string().optional(),
  });

• index.ts:185-189 (registration)

  Tool registration entry in the listTools() method's return array, defining the tool's name, description, and input schema.

  {
    name: "update_task",
    description: "Update an existing task.",
    inputSchema: UpdateTaskSchema,
  },