Claude/ChatGPT (or Copilot) Prompt to Get Context-Aware Code Suggestions

What this prompt does

This template works by front-loading everything Copilot needs before it writes a single line: project name, language, framework, design pattern, and dependencies all appear as structured comments before the task description. Copilot's suggestion engine treats surrounding file context as a strong prior — the more specific that prior, the more constrained and accurate the completion.

The // Example of desired output style: block is the highest-leverage part. Copilot is a next-token predictor at its core. Showing it a concrete style sample — your naming conventions, indentation, error-handling approach — steers the completion away from its average training distribution and toward your actual codebase patterns. The explicit // Implementation: terminator signals where generation should begin, reducing the chance Copilot fills space with additional header comments instead of code.

When to use it

• Generating a new service class that must match your repository's existing architecture (e.g., Repository pattern with dependency injection in Laravel)
• Scaffolding framework-specific boilerplate where defaults would be wrong (e.g., Livewire component vs. plain PHP class)
• Working across multiple languages in a monorepo where Copilot needs an explicit signal about which runtime context applies
• Producing test stubs that match your project's assertion style and factory usage
• Onboarding a new module where no sibling file exists yet to give Copilot implicit context

Example output

For a Laravel service class using the Repository pattern:

<?php

namespace App\Services;

use App\Repositories\Contracts\OrderRepositoryInterface;
use App\Models\Shop\Order;

class OrderFulfillmentService
{
    public function __construct(
        private readonly OrderRepositoryInterface $orders
    ) {}

    public function fulfill(int $orderId): Order
    {
        $order = $this->orders->findOrFail($orderId);
        $order->markFulfilled();
        $this->orders->save($order);
        return $order;
    }
}

Copilot inferred constructor injection, readonly properties, and the findOrFail + save pattern from the header context — none of which it would produce with a bare // Task: comment alone.

Pro tips

• Be specific in [design_pattern]: write Repository + Service Layer not just MVC. Vague patterns produce vague code.
• The [code_example] field should be 5-15 lines from your actual codebase, not invented. Copy-paste a real sibling method — Copilot matches style precisely.
• List only the dependencies directly relevant to the task in [dependencies]. Adding the entire composer.json is noise; illuminate/database, spatie/laravel-medialibrary is signal.
• Pair this with Copilot Chat's #file references for complex tasks — the header primes inline completions, while #file gives Chat deeper cross-file awareness.
• For multi-file tasks, repeat the header in each new file rather than assuming Copilot carries context across buffers.