{"id":98771,"date":"2026-09-10T14:31:19","date_gmt":"2026-09-10T21:31:19","guid":{"rendered":"https:\/\/github.blog\/?p=98771"},"modified":"2026-09-10T14:31:22","modified_gmt":"2026-09-10T21:31:22","slug":"github-copilot-app-for-beginners-using-the-diff-terminal-and-browser","status":"publish","type":"post","link":"https:\/\/github.blog\/ai-and-ml\/github-copilot\/github-copilot-app-for-beginners-using-the-diff-terminal-and-browser\/","title":{"rendered":"GitHub Copilot app for Beginners: Using the diff, terminal, and browser"},"content":{"rendered":"\n

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<\/a>.<\/p>\n\n\n\n

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.<\/p>\n\n\n\n

Let’s walk through each of the panels in the app and how we’ll use them to complete the AI coding loop.<\/p>\n\n\n\n

Using the diff panel to review changes<\/h2>\n\n\n\n

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.<\/p>\n\n\n\n

This gives you complete clarity, so you can choose what happens. You can accept changes, leave comments, or ask Copilot to make changes. You’re in complete control and make the final decisions.<\/p>\n\n\n\n

Running commands in the terminal panel<\/h2>\n\n\n\n

Reading code is good, but running it is even better. You can run commands right inside the session from the Copilot app’s terminal panel. And if it looks intimidating, don’t worry. You’re mostly just running the project’s own commands and reading the results.<\/p>\n\n\n\n

You can run the code by hand or configure it as a script (available through the Run<\/strong> button). Pretend you’re working on a website, here’s an example of how that works:<\/p>\n\n\n\n