How to Use the GitHub Copilot App for Unified Diff, Terminal, and Browser Workflows

Reviewing agent-generated code traditionally requires developers to switch constantly between multiple windows, terminal emulator tabs, and web browsers. The GitHub Copilot app addresses this friction by providing a unified interface where developers can inspect diffs, execute terminal commands, and preview local web applications side by side. This consolidation makes it significantly easier to verify changes without losing context. Within the app, the side-by-side diff view allows engineers to quickly inspect what the AI agent has modified compared to the source branch. Instead of copying and pasting commands into an external terminal window, users can run setup and build scripts directly within the integrated terminal interface. This ensures that the environment setup aligns precisely with the proposed code changes. Additionally, the built-in browser preview enables developers to view real-time rendering of front-end components. Any updates made by the Copilot agent are immediately visible, streamlining the feedback loop. By keeping these key validation tools in one place, the workflow minimizes cognitive overhead and increases the reliability of agent-assisted development.