GitHub Copilot Beginner's Guide: Your AI Coding Partner, Right Inside VS Code

With over 1.3 million paid subscribers, GitHub Copilot is the world's most widely adopted AI coding tool. Unlike standalone AI code editors like Cursor, Copilot is a plugin that works inside your existing editor—VS Code, JetBrains, Neovim, and more—without forcing you to change your workflow.

This guide will help you get set up and productive in minutes.

1. What is GitHub Copilot?

GitHub Copilot is an AI pair programmer built by GitHub (owned by Microsoft) in collaboration with OpenAI. It offers:

• Inline Code Suggestions: As you type, Copilot suggests the next lines of code, functions, or even entire blocks.
• Copilot Chat: A built-in chat window to ask questions about your code.
• Copilot Agent: A multi-step agentic mode that can edit multiple files to complete a complex feature.

2. Setting Up Copilot in VS Code

1. Install VS Code: Download from code.visualstudio.com.
2. Install the Extension: Open Extensions (Ctrl+Shift+X / Cmd+Shift+X) and search for "GitHub Copilot". Install it.
3. Sign In: Sign in to your GitHub account. You'll need an active Copilot subscription.
4. Pricing: Copilot is $10/month for individuals (or free for verified students and open-source maintainers).

3. The Ghost Text (Inline Suggestions)

This is Copilot's most iconic feature. As you write code, you'll see dimmed "ghost text" suggesting a completion.

• Accept: Press Tab to accept the suggestion.
• Reject: Press Esc or keep typing to dismiss it.
• Cycle Alternatives: Press Alt+] (or Option+] on Mac) to see other suggestions.

Pro Tip: Write a descriptive comment before your code to give Copilot context. Example:

# Function to calculate the compound interest for n years
def calculate_compound_interest(principal, rate, n):

Then just wait—Copilot will write the function body for you.

4. Copilot Chat

Open the chat panel with Ctrl+Alt+I (or the robot icon in the sidebar).

• Explain code: Select a confusing block of code, right-click, and choose "Copilot: Explain This".
• Fix bugs: Select a buggy function and type /fix.
• Generate tests: Type /tests to generate unit tests for a selected function.
• Reference files: Use #filename to bring a specific file into the conversation context.

5. Copilot Agent (Multi-File Editing)

The newest Copilot feature is the Agent mode, accessible via the chat panel.

• Prompt: "Add a save to CSV button to the dashboard, create the CSV export utility function, and add it to the exports."
• Result: Copilot will read the relevant files, make the changes across multiple files, and present each edit for your review.

6. Copilot vs. Cursor: Which Should You Choose?

7. Conclusion

If you already use VS Code or a JetBrains IDE and don't want to switch editors, GitHub Copilot is the most natural way to integrate AI into your development workflow. The inline suggestions alone will save you hours every week.

Start your free trial at GitHub Copilot.