GitHub Copilot

an AI Assistant for developers

GitHub Copilot: How To

CLI

• a terminal-native AI coding agent that lets you work without context switching
• custom agents to delegate tasks
• access your GitHub repositories, issues, and PRs using your existing account
• plan and execute multi-step coding tasks (build, edit, debug, refactor)
• ships with GitHub’s MCP; can be configured to talk to a custom MCP server to run private models, enforce policies, or add integrations
• always requires you to preview and approve actions before they run

VS Code extension

• OpenAI Codex integration: with a Copilot Pro+ subscription
  • series of AI coding tools that help developers move faster by delegating tasks to powerful cloud & local coding agents
• Agents: run tasks in background
• Context-isolated subagents: delegate focused tasks that can be solved independently of your main chat for context-optimized token usage
  • e.g.: running TDD workflows, conducting research
• Plan Mode: create, refine, and execute step-by-step implementation plans
  • analyze codebase
  • generate detailed execution plans
  • validate that requirements are covered before starting to code