Kanban MCP Server

Instructions

Implementation Reference

• src/index.ts:169-193 (registration)

  Registration of the 'add-tag' MCP tool. Includes input schema (task_id: string, task_tag: string), inline handler that calls addTaskTag utility and returns success/error message.

  server.tool("add-tag", "add tags to a tasks",{
      task_tag: z.string(),
      task_id: z.string()
  },async (params)=>{
      try {
          await mongooseUtils.addTaskTag(params.task_id,params.task_tag);
          return{
              content: [
            {
              type: "text",
              text: `Added tag "${params.task_tag}" to tasks"${params.task_id}" successfully.`,
            },
          ],
          }
      } catch {
          return{
              content: [
            {
              type: "text",
              text: `Failed to add tag "${params.task_tag}" to tasks"${params.task_id}".`,
            },
          ],
          }
      }
  });

• src/utils/mongoose.ts:91-105 (helper)

  Core implementation of adding a tag to a task. Finds task by ID, adds lowercase tag if not already present, and persists to MongoDB.

  export async function addTaskTag(taskId: string, tag: string) {
    try {
      const task = await Task.findById(taskId);
      if (!task) {
        throw new Error("Task not found");
      }
  
      if (!task.tags.includes(tag.toLowerCase())) {
        task.tags.push(tag.toLowerCase());
        await task.save();
      }
    } catch {
      throw new Error("Failed to add tag");
    }
  }