agent-context-kit

```python
# Domain Layer
class OrderService:
    def __init__(self, order_repository):
        self.order_repository = order_repository

    def create_order(self, order_data):
        # Business logic for order creation
        order = Order(**order_data)
        self.order_repository.save(order)
        return order

# Application Layer
class OrderApplicationService:
    def __init__(self, order_service):
        self.order_service = order_service

    def process_order(self, order_data):
        # Application logic for order processing
        order = self.order_service.create_order(order_data)
        # Additional processing logic
        return order

# Infrastructure Layer
class OrderRepository:
    def save(self, order):
        # Database operations for saving order
        pass

# Main Application
if __name__ == '__main__':
    order_repository = OrderRepository()
    order_service = OrderService(order_repository)
    order_application_service = OrderApplicationService(order_service)
    order_data = {
        'customer_id': '123',
        'items': [
            {'product_id': '456', 'quantity': 2}
        ]
    }
    order = order_application_service.process_order(order_data)
    print(f'Order created: {order}')
```