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Posted on Oct 10

Building a Task Management MCP Server with Laravel

#webdev #ai #programming #laravel

Introduction

The Model Context Protocol (MCP) is an open protocol that enables seamless integration between AI assistants and external data sources. In this tutorial, we'll build a complete task management system using Laravel MCP, demonstrating how to create tools, resources, and prompts that AI assistants can use to interact with your application.

What is MCP?

MCP (Model Context Protocol) allows AI assistants like Claude to interact with your application through three main components:

🛠️ Tools (Actions)

Tools are executable actions that modify data. Think of them as API endpoints that perform operations:

Purpose: Create, update, delete operations
Example: Creating a task, marking it complete, deleting a record
Characteristics:
- Can modify data
- Require validation
- Return confirmation messages
- May have side effects

📚 Resources (Read-Only Data)

Resources provide read-only access to data. They're like GET endpoints that never modify anything:

Purpose: Fetch and display information
Example: View statistics, list items, show reports
Characteristics:
- Never modify data
- Can be cached
- Fast and safe to call repeatedly
- Perfect for dashboards and reports

📝 Prompts (Workflows)

Prompts are pre-configured templates that guide AI through complex multi-step operations:

Purpose: Combine multiple tools/resources into workflows
Example: Generate a productivity report using stats + recent tasks + analysis
Characteristics:
- Provide instructions to AI
- Can chain multiple operations
- Include context and formatting guidelines
- Help maintain consistency

Think of it as an API specifically designed for AI assistants, with built-in authentication, validation, and structured responses.

What We'll Build

We're creating a task management system with:

✅ Create tasks with title, description, and priority
✅ Complete tasks with timestamp tracking
✅ Search tasks by keyword, priority, and completion status
✅ View statistics through resources
✅ User isolation - each user sees only their tasks

Prerequisites

PHP 8.2+
Composer
Laravel 12
Basic understanding of Laravel

Installation

First, create a new Laravel project and install Laravel MCP:

composer create-project laravel/laravel laravel-mcp
cd laravel-mcp
composer require laravel/mcp

Database Setup

Migration

Create a tasks table with user association:

// database/migrations/xxxx_create_tasks_table.php
Schema::create('tasks', function (Blueprint $table) {
    $table->id();
    $table->foreignId('user_id')->constrained()->cascadeOnDelete();
    $table->string('title');
    $table->text('description')->nullable();
    $table->enum('priority', ['low', 'medium', 'high'])->default('medium');
    $table->boolean('completed')->default(false);
    $table->timestamp('completed_at')->nullable();
    $table->timestamps();
});

Task Model

Create a model with a custom query builder for advanced filtering:

// app/Models/Task.php
namespace App\Models;

use App\Models\Builders\TaskBuilder;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class Task extends Model
{
    use HasFactory;

    protected $fillable = [
        'title', 
        'description', 
        'priority', 
        'completed', 
        'completed_at', 
        'user_id'
    ];

    protected $casts = [
        'completed' => 'boolean',
        'completed_at' => 'datetime',
    ];

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    public function newEloquentBuilder($query): TaskBuilder
    {
        return new TaskBuilder($query);
    }

    public function markCompleted(): void
    {
        $this->update([
            'completed' => true,
            'completed_at' => now(),
        ]);
    }
}

Custom Query Builder

Create a custom builder for chainable query methods:

// app/Models/Builders/TaskBuilder.php
namespace App\Models\Builders;

use Illuminate\Database\Eloquent\Builder;

class TaskBuilder extends Builder
{
    public function forUser(int $userId): self
    {
        return $this->where('user_id', $userId);
    }

    public function incomplete(): self
    {
        return $this->where('completed', false);
    }

    public function completed(): self
    {
        return $this->where('completed', true);
    }

    public function highPriority(): self
    {
        return $this->where('priority', 'high');
    }

    public function search(?string $keyword): self
    {
        if (empty($keyword)) {
            return $this;
        }

        return $this->where(function ($query) use ($keyword) {
            $query->where('title', 'like', "%{$keyword}%")
                  ->orWhere('description', 'like', "%{$keyword}%");
        });
    }

    public function recentlyCompleted(int $days = 30): self
    {
        return $this->completed()
                    ->where('completed_at', '>=', now()->subDays($days));
    }
}

Creating MCP Tools

Tools allow AI assistants to perform actions. Let's create three essential tools.

1. CreateTaskTool

// app/Mcp/Tools/CreateTaskTool.php
namespace App\Mcp\Tools;

use App\Models\Task;
use Illuminate\JsonSchema\JsonSchema;
use Laravel\Mcp\Request;
use Laravel\Mcp\Response;
use Laravel\Mcp\Server\Tool;

class CreateTaskTool extends Tool
{
    protected string $description = 'Creates a new task with title, optional description, and priority level.';

    public function handle(Request $request): Response
    {
        $validated = $request->validate([
            'title'       => ['required', 'string', 'max:255'],
            'description' => ['nullable', 'string', 'max:1000'],
            'priority'    => ['sometimes', 'in:low,medium,high'],
        ], [
            'title.required'   => 'You must provide a task title.',
            'title.max'        => 'Task title is too long (max 255 characters).',
            'description.max'  => 'Description is too long (max 1000 characters).',
            'priority.in'      => 'Priority must be: low, medium, or high.',
        ]);

        // Associate with authenticated user
        $validated['user_id'] = $request->user()->id;
        $validated['priority'] = $validated['priority'] ?? 'medium';

        $task = Task::create($validated);

        return Response::text(
            "✅ Task created successfully!\n\n" .
            "**{$task->title}**\n" .
            ($task->description ? "{$task->description}\n" : '') .
            "Priority: {$task->priority}\n" .
            "ID: {$task->id}"
        );
    }

    public function schema(JsonSchema $schema): array
    {
        return [
            'title' => $schema->string()
                ->description('The title of the task')
                ->required(),
            'description' => $schema->string()
                ->description('Optional detailed description'),
            'priority' => $schema->enum(['low', 'medium', 'high'])
                ->description('Priority level')
                ->default('medium'),
        ];
    }
}

2. CompleteTaskTool

// app/Mcp/Tools/CompleteTaskTool.php
namespace App\Mcp\Tools;

use App\Models\Task;
use Illuminate\JsonSchema\JsonSchema;
use Laravel\Mcp\Request;
use Laravel\Mcp\Response;
use Laravel\Mcp\Server\Tool;

class CompleteTaskTool extends Tool
{
    protected string $description = 'Marks a task as completed.';

    public function handle(Request $request): Response
    {
        $validated = $request->validate([
            'task_id' => ['required', 'integer', 'exists:tasks,id'],
        ]);

        $task = Task::where('id', $validated['task_id'])
                    ->where('user_id', $request->user()->id)
                    ->firstOrFail();

        if ($task->completed) {
            return Response::text(
                "ℹ️ Task '{$task->title}' is already completed.\n" .
                "Completed at: {$task->completed_at->format('Y-m-d H:i:s')}"
            );
        }

        $task->markCompleted();

        return Response::text(
            "✅ Task completed!\n\n" .
            "**{$task->title}**\n" .
            "Completed at: {$task->completed_at->format('Y-m-d H:i:s')}"
        );
    }

    public function schema(JsonSchema $schema): array
    {
        return [
            'task_id' => $schema->integer()
                ->description('The ID of the task to complete')
                ->required(),
        ];
    }
}

3. SearchTasksTool

// app/Mcp/Tools/SearchTasksTool.php
namespace App\Mcp\Tools;

use App\Models\Task;
use Illuminate\JsonSchema\JsonSchema;
use Laravel\Mcp\Request;
use Laravel\Mcp\Response;
use Laravel\Mcp\Server\Tool;

class SearchTasksTool extends Tool
{
    protected string $description = 'Search and filter tasks by various criteria.';

    public function handle(Request $request): Response
    {
        $validated = $request->validate([
            'keyword'   => ['nullable', 'string', 'max:255'],
            'priority'  => ['nullable', 'in:low,medium,high'],
            'completed' => ['nullable', 'boolean'],
        ]);

        $query = Task::forUser($request->user()->id);

        if (isset($validated['keyword'])) {
            $query->search($validated['keyword']);
        }

        if (isset($validated['priority'])) {
            $query->where('priority', $validated['priority']);
        }

        if (isset($validated['completed'])) {
            $validated['completed'] 
                ? $query->completed() 
                : $query->incomplete();
        }

        $tasks = $query->latest()->get();

        if ($tasks->isEmpty()) {
            return Response::text('No tasks found matching your criteria.');
        }

        $output = "Found {$tasks->count()} task(s):\n\n";

        foreach ($tasks as $task) {
            $status = $task->completed ? '✅' : '⏳';
            $output .= "{$status} **{$task->title}**\n";
            $output .= "   Priority: {$task->priority}\n";
            if ($task->description) {
                $output .= "   {$task->description}\n";
            }
            $output .= "   ID: {$task->id}\n\n";
        }

        return Response::text($output);
    }

    public function schema(JsonSchema $schema): array
    {
        return [
            'keyword' => $schema->string()
                ->description('Search keyword for title or description'),
            'priority' => $schema->enum(['low', 'medium', 'high'])
                ->description('Filter by priority level'),
            'completed' => $schema->boolean()
                ->description('Filter by completion status'),
        ];
    }
}

Creating MCP Resources

Resources provide read-only access to data. They're perfect for statistics, reports, or any data that AI assistants need to read but not modify.

1. TaskStatsResource

This resource provides real-time statistics about the user's tasks:

// app/Mcp/Resources/TaskStatsResource.php
namespace App\Mcp\Resources;

use App\Models\Task;
use Laravel\Mcp\Request;
use Laravel\Mcp\Response;
use Laravel\Mcp\Server\Resource;

class TaskStatsResource extends Resource
{
    protected string $name = 'task-stats';
    protected string $description = 'Provides statistics about user tasks including counts by priority and completion status.';

    public function handle(Request $request): Response
    {
        $userId = $request->user()->id;

        $stats = [
            'total' => Task::forUser($userId)->count(),
            'completed' => Task::forUser($userId)->completed()->count(),
            'incomplete' => Task::forUser($userId)->incomplete()->count(),
            'by_priority' => [
                'high' => Task::forUser($userId)->where('priority', 'high')->count(),
                'medium' => Task::forUser($userId)->where('priority', 'medium')->count(),
                'low' => Task::forUser($userId)->where('priority', 'low')->count(),
            ],
            'completion_rate' => Task::forUser($userId)->count() > 0
                ? round((Task::forUser($userId)->completed()->count() / Task::forUser($userId)->count()) * 100, 2)
                : 0,
        ];

        $output = "📊 **Task Statistics**\n\n";
        $output .= "**Overview:**\n";
        $output .= "• Total tasks: {$stats['total']}\n";
        $output .= "• Completed: {$stats['completed']}\n";
        $output .= "• Incomplete: {$stats['incomplete']}\n";
        $output .= "• Completion rate: {$stats['completion_rate']}%\n\n";

        $output .= "**By Priority:**\n";
        $output .= "• High: {$stats['by_priority']['high']}\n";
        $output .= "• Medium: {$stats['by_priority']['medium']}\n";
        $output .= "• Low: {$stats['by_priority']['low']}\n";

        return Response::text($output);
    }
}

2. RecentCompletedTasksResource

This resource shows recently completed tasks:

// app/Mcp/Resources/RecentCompletedTasksResource.php
namespace App\Mcp\Resources;

use App\Models\Task;
use Laravel\Mcp\Request;
use Laravel\Mcp\Response;
use Laravel\Mcp\Server\Resource;

class RecentCompletedTasksResource extends Resource
{
    protected string $name = 'recent-completed-tasks';
    protected string $description = 'Lists tasks completed in the last 30 days with completion timestamps.';

    public function handle(Request $request): Response
    {
        $tasks = Task::forUser($request->user()->id)
            ->recentlyCompleted(30)
            ->orderBy('completed_at', 'desc')
            ->limit(10)
            ->get();

        if ($tasks->isEmpty()) {
            return Response::text('No tasks completed in the last 30 days.');
        }

        $output = "✅ **Recently Completed Tasks** (Last 30 days)\n\n";

        foreach ($tasks as $task) {
            $daysAgo = $task->completed_at->diffForHumans();
            $output .= "**{$task->title}**\n";
            $output .= "   Priority: {$task->priority}\n";
            $output .= "   Completed: {$daysAgo}\n";
            $output .= "   Date: {$task->completed_at->format('Y-m-d H:i')}\n\n";
        }

        return Response::text($output);
    }
}

Creating MCP Prompts

Prompts are pre-configured templates that help AI assistants perform common workflows. They combine multiple tools and provide context.

ProductivityReportPrompt

This prompt generates a comprehensive productivity report:

// app/Mcp/Prompts/ProductivityReportPrompt.php
namespace App\Mcp\Prompts;

use Laravel\Mcp\Request;
use Laravel\Mcp\Response;
use Laravel\Mcp\Server\Prompt;

class ProductivityReportPrompt extends Prompt
{
    protected string $name = 'productivity-report';
    protected string $description = 'Generates a comprehensive productivity report with task statistics, recent completions, and recommendations.';

    public function handle(Request $request): Response
    {
        $instructions = <<<'TEXT'
        Generate a productivity report by:

        1. **Fetch Statistics**: Use the 'task-stats' resource to get overall task metrics
        2. **Recent Activity**: Use the 'recent-completed-tasks' resource to see what's been done
        3. **Current Tasks**: Use SearchTasksTool with completed=false to see pending work
        4. **Analysis**: Provide insights on:
           - Completion rate trends
           - Priority distribution
           - Workload balance
           - Recommendations for improvement

        Format the report with:
        - Executive summary at the top
        - Key metrics with visual indicators (📊, ✅, ⏳)
        - Actionable recommendations
        - Encouraging tone

        Example structure:

        # 📈 Your Productivity Report

        ## Executive Summary
        [Brief overview of performance]

        ## Key Metrics
        [Statistics from resources]

        ## Recent Achievements
        [Completed tasks]

        ## Current Focus
        [Pending high-priority tasks]

        ## Recommendations
        [Actionable suggestions]
        TEXT;

        return Response::text($instructions);
    }

    public function arguments(): array
    {
        return [
            // No arguments needed - uses current user context
        ];
    }
}

Creating the MCP Server

// app/Mcp/Servers/TaskServer.php
namespace App\Mcp\Servers;

use App\Mcp\Tools\CreateTaskTool;
use App\Mcp\Tools\CompleteTaskTool;
use App\Mcp\Tools\SearchTasksTool;
use App\Mcp\Resources\TaskStatsResource;
use App\Mcp\Resources\RecentCompletedTasksResource;
use App\Mcp\Prompts\ProductivityReportPrompt;
use Laravel\Mcp\Server;

class TaskServer extends Server
{
    protected string $name = 'Task Management Server';
    protected string $version = '1.0.0';

    protected string $instructions = <<<'MARKDOWN'
    # Task Management Server

    A comprehensive task management system with AI-powered features.

    ## 🛠️ Tools (Actions)
    Use these to modify data:
    - **create-task-tool**: Create new tasks with title, description, and priority
    - **complete-task-tool**: Mark tasks as completed with timestamp
    - **search-tasks-tool**: Find and filter tasks by various criteria

    ## 📚 Resources (Read-Only Data)
    Use these to access information:
    - **task-stats**: View statistics and metrics about tasks
    - **recent-completed-tasks**: See recently completed tasks (last 30 days)

    ## 📝 Prompts (Workflows)
    Use these for complex operations:
    - **productivity-report**: Generate comprehensive productivity analysis

    ## 🔒 Security
    All operations are user-specific. Users can only access their own tasks.
    MARKDOWN;

    protected array $tools = [
        CreateTaskTool::class,
        CompleteTaskTool::class,
        SearchTasksTool::class,
    ];

    protected array $resources = [
        TaskStatsResource::class,
        RecentCompletedTasksResource::class,
    ];

    protected array $prompts = [
        ProductivityReportPrompt::class,
    ];
}

Routing

// routes/ai.php
use Laravel\Mcp\Facades\Mcp;
use App\Mcp\Servers\TaskServer;

Mcp::web('/mcp/tasks', TaskServer::class);

Authentication

Laravel MCP supports Sanctum authentication. Generate tokens for users:

// app/Console/Commands/CreateMcpToken.php
namespace App\Console\Commands;

use App\Models\User;
use Illuminate\Console\Command;

class CreateMcpToken extends Command
{
    protected $signature = 'mcp:token {email}';
    protected $description = 'Create an MCP access token for a user';

    public function handle()
    {
        $user = User::where('email', $this->argument('email'))->first();

        if (!$user) {
            $this->error('User not found!');
            return 1;
        }

        $token = $user->createToken('mcp-access')->plainTextToken;

        $this->info("Token created successfully:");
        $this->line($token);

        return 0;
    }
}

Generate a token:

php artisan mcp:token user@example.com

Understanding the Differences

Here's a quick comparison to help you choose the right component:

Component	Modifies Data?	Use Case	Example
Tool	✅ Yes	Actions that change state	Create task, update status
Resource	❌ No	Read-only information	View stats, list items
Prompt	⚙️ Orchestrates	Multi-step workflows	Generate report, analyze data

When to Use Each

Use a Tool when:

You need to create, update, or delete data
The operation has side effects
You need validation and error handling
Example: CreateTaskTool, CompleteTaskTool

Use a Resource when:

You need to display information
The data is read-only
You want to provide context to AI
Example: TaskStatsResource, RecentTasksResource

Use a Prompt when:

You need to guide AI through multiple steps
You want consistent output formatting
You're combining multiple tools/resources
Example: ProductivityReportPrompt, WeeklyReviewPrompt

Testing

Laravel MCP provides excellent testing utilities for all three components:

// tests/Feature/TaskMcpTest.php
use App\Mcp\Servers\TaskServer;
use App\Mcp\Tools\CreateTaskTool;
use App\Models\User;

test('can create a task', function () {
    $user = User::factory()->create();

    $response = TaskServer::actingAs($user)
        ->tool(CreateTaskTool::class, [
            'title' => 'Write tutorial',
            'description' => 'Complete Laravel MCP tutorial',
            'priority' => 'high',
        ]);

    $response->assertOk();
    $response->assertSee('Write tutorial');
    $response->assertSee('high');

    expect(Task::first())
        ->user_id->toBe($user->id)
        ->title->toBe('Write tutorial')
        ->priority->toBe('high');
});

test('users only see their own tasks', function () {
    $user1 = User::factory()->create();
    $user2 = User::factory()->create();

    Task::factory()->create([
        'user_id' => $user1->id,
        'title' => 'User 1 task',
    ]);

    Task::factory()->create([
        'user_id' => $user2->id,
        'title' => 'User 2 task',
    ]);

    $response = TaskServer::actingAs($user1)
        ->tool(SearchTasksTool::class, []);

    $response->assertOk();
    $response->assertSee('User 1 task');
    $response->assertDontSee('User 2 task');
});

test('can access task statistics resource', function () {
    $user = User::factory()->create();

    Task::factory()->count(5)->create(['user_id' => $user->id]);
    Task::factory()->completed()->count(3)->create(['user_id' => $user->id]);

    $response = TaskServer::actingAs($user)
        ->resource(TaskStatsResource::class);

    $response->assertOk();
    $response->assertSee('Total tasks: 8');
    $response->assertSee('Completed: 3');
    $response->assertSee('Incomplete: 5');
});

test('can use productivity report prompt', function () {
    $user = User::factory()->create();

    $response = TaskServer::actingAs($user)
        ->prompt(ProductivityReportPrompt::class);

    $response->assertOk();
    $response->assertSee('productivity report');
    $response->assertSee('task-stats');
    $response->assertSee('recent-completed-tasks');
});

Run tests:

php artisan test

Advanced Features

Custom Query Builder

The TaskBuilder class demonstrates the power of Laravel's query builder pattern:

// Chainable queries
$tasks = Task::forUser($userId)
    ->incomplete()
    ->highPriority()
    ->search('important')
    ->get();

Validation with Custom Messages

MCP integrates seamlessly with Laravel's validation:

$validated = $request->validate([
    'title' => ['required', 'string', 'max:255'],
], [
    'title.required' => 'Custom error message for AI',
]);

User Isolation

Every query automatically filters by the authenticated user:

$task = Task::where('id', $taskId)
    ->where('user_id', $request->user()->id)
    ->firstOrFail();

Deployment

Environment Configuration

APP_URL=https://your-domain.com
MCP_ENABLED=true
SANCTUM_STATEFUL_DOMAINS=your-domain.com

Production Checklist

✅ Enable HTTPS
✅ Configure CORS properly
✅ Set up rate limiting
✅ Use queue workers for heavy operations
✅ Monitor API usage
✅ Implement proper logging

Best Practices

1. Clear Tool Descriptions

protected string $description = 'Creates a new task with title, optional description, and priority level.';

AI assistants use these descriptions to understand when to use your tools.

2. Comprehensive Schemas

public function schema(JsonSchema $schema): array
{
    return [
        'title' => $schema->string()
            ->description('The title of the task')
            ->required(),
    ];
}

Detailed schemas help AI understand parameter requirements.

3. User-Friendly Responses

return Response::text(
    "✅ Task created successfully!\n\n" .
    "**{$task->title}**\n" .
    "Priority: {$task->priority}"
);

Format responses for readability by both AI and humans.

4. Proper Error Handling

if ($task->completed) {
    return Response::text(
        "ℹ️ Task is already completed.\n" .
        "Completed at: {$task->completed_at->format('Y-m-d H:i:s')}"
    );
}

Provide helpful feedback for edge cases.

Common Pitfalls

1. Forgetting User Association

❌ Wrong:

$task = Task::find($taskId);

✅ Correct:

$task = Task::where('id', $taskId)
    ->where('user_id', $request->user()->id)
    ->firstOrFail();

2. Missing Validation

Always validate input from AI assistants:

$validated = $request->validate([
    'task_id' => ['required', 'integer', 'exists:tasks,id'],
]);

3. Unclear Responses

Make responses clear and actionable:

// ❌ Bad
return Response::text('Done');

// ✅ Good
return Response::text(
    "✅ Task '{$task->title}' completed successfully!\n" .
    "Completed at: {$task->completed_at->format('Y-m-d H:i:s')}"
);

Conclusion

Laravel MCP provides a powerful framework for building AI-accessible APIs. Key takeaways:

Tools enable actions (create, update, delete)
Validation ensures data integrity
User isolation maintains security
Testing utilities make development smooth
Custom builders enable complex queries

The complete code is available on GitHub.

Real-World Usage Examples

Example 1: AI Assistant Creating a Task

User: "Create a high priority task to review Q4 budget"

AI uses CreateTaskTool:
{
  "title": "Review Q4 budget",
  "priority": "high"
}

Response: ✅ Task created successfully!
**Review Q4 budget**
Priority: high
ID: 42

Example 2: AI Checking Statistics

User: "How am I doing with my tasks?"

AI accesses TaskStatsResource:

Response: 📊 Task Statistics
Total tasks: 25
Completed: 18
Completion rate: 72%

Example 3: AI Generating Report

User: "Give me a productivity report"

AI uses ProductivityReportPrompt which:
1. Fetches stats from TaskStatsResource
2. Gets recent completions from RecentCompletedTasksResource
3. Searches incomplete high-priority tasks
4. Generates formatted report with insights

Architecture Diagram

┌─────────────────────────────────────────┐
│         AI Assistant (Claude)           │
└────────────────┬────────────────────────┘
                 │ MCP Protocol
                 │
┌────────────────▼────────────────────────┐
│         Laravel MCP Server              │
│  ┌─────────────────────────────────┐   │
│  │         TaskServer              │   │
│  │  ┌──────────┐  ┌──────────┐    │   │
│  │  │  Tools   │  │Resources │    │   │
│  │  │  - Create│  │  - Stats │    │   │
│  │  │  - Update│  │  - Recent│    │   │
│  │  │  - Search│  │           │    │   │
│  │  └──────────┘  └──────────┘    │   │
│  │  ┌──────────┐                  │   │
│  │  │ Prompts  │                  │   │
│  │  │  - Report│                  │   │
│  │  └──────────┘                  │   │
│  └─────────────────────────────────┘   │
└────────────────┬────────────────────────┘
                 │
┌────────────────▼────────────────────────┐
│         Laravel Application             │
│  ┌──────────┐  ┌──────────┐            │
│  │  Models  │  │ Database │            │
│  │  - Task  │  │  - tasks │            │
│  │  - User  │  │  - users │            │
│  └──────────┘  └──────────┘            │
└─────────────────────────────────────────┘

Next Steps

Add more Resources (task trends, team statistics)
Create additional Prompts (weekly review, goal setting)
Add file attachments to tasks
Implement task sharing between users
Add real-time notifications
Create custom task categories
Implement recurring tasks