GitHub Copilot

Autocomplete, chat, agent mode, and Copilot Workspace.

🧪 Try it in the Playground 🎯 Practice this path

GitHub Copilot is the most widely deployed AI coding tool, built into VS Code, JetBrains, Neovim, and github.com itself.

The pieces

Code completion — inline suggestions as you type.
Chat — ask about your codebase, get explanations and fixes.
Agent mode — Copilot plans, edits multiple files, and runs terminal commands.
Copilot Workspace — a browser flow from GitHub issue → plan → code → PR.
Copilot CLI — run it in the terminal: gh copilot suggest.

Agent mode in VS Code

Open the chat, switch to Agent, and describe a goal. Copilot will:

Search your repo for relevant code.
Propose a plan.
Edit files, run builds and tests.
Show you every terminal command before it runs.

Custom instructions & MCP

.github/copilot-instructions.md — repo-wide instructions, auto-loaded.
VS Code settings → MCP — add servers; VS Code 1.99+ has first-class MCP support.

When Copilot wins

Your team already lives on GitHub.
You want one tool that works in editor + browser + terminal.
You need enterprise compliance and org-wide policy controls.

Copilot's strength is ubiquity — the same assistant follows you from a PR review on github.com to an agent session in VS Code.