Copilot for GitHub

GitHub Copilot Chat extends GitHub Copilot's AI capabilities into the GitHub web interface and pull request workflow, bringing conversational AI assistance to code review, pull request analysis, and repository exploration. This integration makes AI assistance available precisely where development collaboration happens, rather than requiring developers to context-switch to a separate AI tool.

Within pull requests, developers can ask Copilot to explain the changes, identify potential bugs or security issues, suggest improvements to the code, or generate summaries of complex diffs. The AI understands the context of the changes including what was modified, why the changes might have been made, and how they relate to the surrounding codebase.

The code explanation feature is particularly valuable for code review. When reviewers encounter unfamiliar code patterns or complex logic, they can ask Copilot to explain what the code does and why it's written in a particular way, improving review quality and reducing the cognitive overhead of reviewing code in unfamiliar domains.

For repository exploration, Copilot Chat in GitHub answers questions about the codebase directly in the web interface. Developers can ask about how specific features are implemented, where certain functionality lives, or how to navigate to relevant code — all without leaving the browser-based GitHub interface.

The integration with GitHub's existing features including issues, wikis, and discussions provides context that makes Copilot's assistance more informed. Understanding the project's history, discussed approaches, and documentation helps the AI provide more relevant and contextually appropriate responses.