Use Copilot directly from your terminal to answer questions, write and debug code, and interact with GitHub. Using GitHub Copilot CLI Learn how to use GitHub Copilot from the command line. Best practices for GitHub Copilot CLI Learn how to get the most out of GitHub Copilot CLI. GitHub Copilot CLI command reference Find commands and keyboard shortcuts to help you use Copilot CLI effectively. About agent skills Skills allow Copilot to perform specialized tasks. About custom agents Custom agents enhance Copilot with assistance tailored to your needs. About extensions for GitHub Copilot CLI

Extensions let you add your own tools and slash commands to GitHub Copilot CLI, using only the SDK that ships with the CLI. About GitHub Copilot plugins Plugins are installable packages that extend Copilot with reusable agents, skills, hooks, and integrations. About GitHub Copilot session data Understand what session data is, where it is stored, who can access it, and how it is managed. About remote control of GitHub Copilot CLI sessions Remote control lets you monitor and steer a Copilot CLI session from GitHub.com or GitHub Mobile, even after you've stepped away from your machine. About the rubber duck agent The rubber duck agent is a built-in critic that gives Copilot a constructive second opinion on its own plans, code, and tests—using a different AI model from the one driving your session. Adding agent skills for GitHub Copilot CLI Modify Copilot's behavior and abilities when it works on particular tasks. Adding custom instructions for GitHub Copilot CLI Give Copilot additional context on how to understand your project and how to build, test and validate its changes.