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Task API Server

by milkosten

Task API Server - MCP TypeScript Implementation

A Model Context Protocol (MCP) implementation for Task Management API written in TypeScript. This project serves as both a reference implementation and a functional task management server.

Overview

This MCP server connects to an external Task API service and provides a standardized interface for task management. It supports two runtime modes:

  1. STDIO Mode: Standard input/output communication for CLI-based applications and AI agents

  2. HTTP+SSE Mode: Web-accessible server with Server-Sent Events for browser and HTTP-based clients

The server offers a complete set of task management operations, extensive validation, and robust error handling.

Related MCP server: Tiny TODO MCP

Features

  • Task Management Operations:

    • List existing tasks with filtering capabilities

    • Create new tasks with customizable properties

    • Update task details (description, status, category, priority)

    • Delete tasks when completed or no longer needed

  • Dual Interface Modes:

    • STDIO protocol support for command-line and AI agent integration

    • HTTP+SSE protocol with web interface for browser-based access

  • MCP Protocol Implementation:

    • Complete implementation of the Model Context Protocol

    • Resources for task data structures

    • Tools for task operations

    • Error handling and informative messages

  • Quality Assurance:

    • Comprehensive test client for validation

    • Automatic server shutdown after tests complete

    • Detailed validation of API responses

Getting Started

Prerequisites

  • Node.js 16.x or higher

  • npm or pnpm package manager

Installation

  1. Clone the repository:

    git clone https://github.com/yourusername/mcp-template-ts.git
    cd mcp-template-ts
  2. Install dependencies:

    npm install

    or using pnpm:

    pnpm install
  3. Create an .env file with your Task API credentials:

    TASK_MANAGER_API_BASE_URL=https://your-task-api-url.com/api
    TASK_MANAGER_API_KEY=your_api_key_here
    TASK_MANAGER_HTTP_PORT=3000
  4. Build the project:

    npm run build

Running the Server

STDIO Mode (for CLI/AI integration)

npm start

or

node dist/index.js

HTTP Mode (for web access)

npm run start:http

or

node dist/http-server.js

By default, the HTTP server runs on port 3000. You can change this by setting the TASK_MANAGER_HTTP_PORT environment variable.

Testing

Run the comprehensive test suite to verify functionality:

npm test

This will:

  1. Build the project

  2. Start a server instance

  3. Connect a test client to the server

  4. Run through all task operations

  5. Verify correct responses

  6. Automatically shut down the server

Using the MCP Client

STDIO Client

To connect to the STDIO server from your application:

import { Client } from "@modelcontextprotocol/sdk/client/index.js";
import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js";
import * as path from 'path';

// Create transport
const transport = new StdioClientTransport({
  command: 'node',
  args: [path.resolve('path/to/dist/index.js')]
});

// Initialize client
const client = new Client(
  {
    name: "your-client-name",
    version: "1.0.0"
  },
  {
    capabilities: {
      prompts: {},
      resources: {},
      tools: {}
    }
  }
);

// Connect to server
await client.connect(transport);

// Example: List all tasks
const listTasksResult = await client.callTool({
  name: "listTasks",
  arguments: {}
});

// Example: Create a new task
const createTaskResult = await client.callTool({
  name: "createTask",
  arguments: {
    task: "Complete project documentation",
    category: "Documentation",
    priority: "high"
  }
});

// Clean up when done
await client.close();

HTTP Client

To connect to the HTTP server from a browser:

<!DOCTYPE html>
<html>
<head>
  <title>Task Manager</title>
  <script type="module">
    import { Client } from 'https://cdn.jsdelivr.net/npm/@modelcontextprotocol/sdk/dist/esm/client/index.js';
    import { SSEClientTransport } from 'https://cdn.jsdelivr.net/npm/@modelcontextprotocol/sdk/dist/esm/client/sse.js';

    document.addEventListener('DOMContentLoaded', async () => {
      // Create transport
      const transport = new SSEClientTransport('http://localhost:3000/mcp');
      
      // Initialize client
      const client = new Client(
        {
          name: "browser-client",
          version: "1.0.0"
        },
        {
          capabilities: {
            prompts: {},
            resources: {},
            tools: {}
          }
        }
      );

      // Connect to server
      await client.connect(transport);
      
      // Now you can use client.callTool() for tasks
    });
  </script>
</head>
<body>
  <h1>Task Manager</h1>
  <!-- Your interface elements here -->
</body>
</html>

Available Tools

listTasks

Lists all available tasks.

const result = await client.callTool({
  name: "listTasks",
  arguments: {
    // Optional filters
    status: "pending", // Filter by status
    category: "Work",  // Filter by category
    priority: "high"   // Filter by priority
  }
});

createTask

Creates a new task.

const result = await client.callTool({
  name: "createTask",
  arguments: {
    task: "Complete the project report",  // Required: task description
    category: "Work",                     // Optional: task category
    priority: "high"                      // Optional: low, medium, high
  }
});

updateTask

Updates an existing task.

const result = await client.callTool({
  name: "updateTask",
  arguments: {
    taskId: 123,                       // Required: ID of task to update
    task: "Updated task description",  // Optional: new description
    status: "done",                    // Optional: pending, started, done
    category: "Personal",              // Optional: new category
    priority: "medium"                 // Optional: low, medium, high
  }
});

deleteTask

Deletes a task.

const result = await client.callTool({
  name: "deleteTask",
  arguments: {
    taskId: 123  // Required: ID of task to delete
  }
});

Environment Variables

Variable

Description

Default

TASK_MANAGER_API_BASE_URL

URL for the external Task API

None (Required)

TASK_MANAGER_API_KEY

API key for authentication

None (Required)

TASK_MANAGER_HTTP_PORT

Port for the HTTP server

3000

PORT

Alternative port name (takes precedence)

None

Project Structure

mcp-template-ts/
├── dist/               # Compiled JavaScript files
├── src/                # TypeScript source files
│   ├── index.ts        # STDIO server entry point
│   ├── http-server.ts  # HTTP+SSE server entry point
│   ├── test-client.ts  # Test client implementation
├── .env                # Environment variables
├── package.json        # Project dependencies
├── tsconfig.json       # TypeScript configuration
└── README.md           # Project documentation

Development

  1. Start the TypeScript compiler in watch mode:

    npm run watch
  2. Run tests to verify changes:

    npm test

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

  • This project uses the @modelcontextprotocol/sdk for MCP protocol implementation

  • Built for integration with AI tooling and web applications

Available Tools

4 tools
createTaskD
ParametersJSON Schema
NameRequiredDescriptionDefault
taskYesThe task description or title
categoryYesTask category (e.g., 'Development', 'Documentation')
priorityNoTask priority level (defaults to 'medium' if not specified)
statusNoInitial task status (defaults to 'not_started' if not specified)

TDQS

D1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Tool has no description.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness1/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Tool has no description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Tool has no description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Tool has no description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tool has no description.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Tool has no description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

deleteTaskD
ParametersJSON Schema
NameRequiredDescriptionDefault
taskIdYesThe unique ID of the task to delete

TDQS

D1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Tool has no description.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness1/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Tool has no description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Tool has no description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Tool has no description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tool has no description.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Tool has no description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

listTasksD
ParametersJSON Schema
NameRequiredDescriptionDefault
statusNoFilter tasks by status (optional)
priorityNoFilter tasks by priority level (optional)

TDQS

D1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Tool has no description.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness1/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Tool has no description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Tool has no description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Tool has no description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tool has no description.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Tool has no description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

updateTaskD
ParametersJSON Schema
NameRequiredDescriptionDefault
taskIdYesThe unique ID of the task to update
taskNoNew task description/title (if you want to change it)
categoryNoNew task category (if you want to change it)
priorityNoNew task priority (if you want to change it)
statusNoNew task status (if you want to change it)

TDQS

D1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Tool has no description.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness1/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Tool has no description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Tool has no description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Tool has no description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tool has no description.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Tool has no description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. 4 tool updates
    • First observedcreateTask
    • First observeddeleteTask
    • First observedlistTasks
    • First observedupdateTask

TDQS

C2.2/5.0
Disambiguation5/5

Each tool has a clearly distinct purpose targeting a specific CRUD operation on tasks: create, delete, list, and update. There is no overlap or ambiguity between these actions.

Naming Consistency5/5

All tool names follow a consistent verb_noun pattern (createTask, deleteTask, listTasks, updateTask) with no deviations in style or convention.

Tool Count5/5

With 4 tools, this server is well-scoped for a basic task management API, covering essential CRUD operations without unnecessary bloat or missing core functionality.

Completeness5/5

The tool set provides complete CRUD coverage for the task domain (create, read via list, update, delete), with no obvious gaps or dead ends for managing tasks.

Maintenance

ActivityInactive
ResponsivenessSyncing

Resources

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