GitHub Copilot app for Beginners: Using the diff, terminal, and browser

GitHub Copilot app for Beginners: Using the diff, terminal, and browser Kayla Cinnamon · @cinnamon-msft September 10, 2026 | 3 minutes Share: When an agent makes a change to your code, you want to review it, run it, and see what changed. Great news: now you can do all three without having to leave the GitHub Copilot app .

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• Kayla Cinnamon · @cinnamon-msft September 10, 2026 | 3 minutes Share: When an agent makes a change to your code, you want to review it, run it, and see what changed.
• Great news: now you can do all three without having to leave the GitHub Copilot app .
• Before, doing those three jobs would mean having to bounce between your editor, terminal window, and web browser.
• But when these steps live side by side as built-in panels in the Copilot app, checking your agent’s work is simple.
• Let’s walk through each of the panels in the app and how we’ll use them to complete the AI coding loop.
• Using the diff panel to review changes The diff panel (a diff is a before and after comparison) shows exactly what lines were added, removed, or changed, with additions highlighted in green and deletions in red.