Build applications with GitHub Copilot agent mode

Build an application with GitHub Copilot agent mode in less than an hour.

Welcome

People love how GitHub Copilot helps them write code faster and with fewer errors. But what if GitHub could create a full stack application for your job role based on requirements written in natural language? In this exercise, we will prompt GitHub Copilot agent mode to create us a complete application.

Who is this for: Intermediate developers familiar with GitHub Copilot, basic GitHub, and basic web development
What you'll learn: We'll introduce GitHub Copilot agent mode and how to use it for application development.
What you'll build: You'll use GitHub Copilot agent mode to create a fitness application as the gym teacher of a high school.
Prerequisites: Skills Exercise: Getting Started with GitHub Copilot.
How long: This course takes less than one hour to complete.

In this exercise, you will:

Start up a preconfigured development environment for making a full stack application.
Prompt in GitHub Copilot Chat and select the edit tab and select agent mode from the edit/agent drop-down.
Try creating the application with GPT-4o.
Try other LLM models to see other output.

How to start this exercise

Right-click Copy Exercise and open the link in a new tab.
In the new tab, most of the fields will automatically fill in for you.
- For owner, choose your personal account or an organization to host the repository.
- We recommend creating a public repository, as private repositories will use Actions minutes.
- Scroll down and click the Create repository button at the bottom of the form.
After your new repository is created, wait about 20 seconds for the course to be prepared.
- The Copy Exercise button will deactivate, changing to gray.
- The Start Exercise button will activate, changing to green.
Click Start Exercise. Follow the step-by-step instructions and feedback will be provided as you progress.

❕ Important: The Start Exercise button will activate after copying the repository. You will probably need to refresh the page.

Get help: Post in our discussion board • Review the GitHub status page

© 2025 GitHub • Code of Conduct • MIT License

License

chrisreddington/build-applications-w-copilot-agent-mode-1

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