GitHub Copilot CLI 101: The Complete Guide to Every Slash Command

Published: 01 April 2026
on channel: proflead

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GitHub Copilot CLI brings AI directly into your terminal — and the slash commands are where the real power hides. I tested all of them, so you know exactly which ones are worth your time.

In this video, I cover everything you need to start using GitHub Copilot CLI like a pro: installation (npm, Homebrew, or WinGet), how it actually works as a terminal-native AI agent, a deep dive into the most useful slash commands (/diff, /review, /research, /share, /compact, and more), common mistakes beginners make, and the best practices I've picked up from real usage.

If you're a developer who wants to reduce context switching and automate repetitive dev tasks without leaving your terminal — this one's for you.

LINKS:
GitHub Copilot CLI docs: https://docs.github.com/en/copilot/gi...
Get GitHub Copilot: https://github.com/features/copilot
GitHub Copilot CLI Tutorial 101 - https://proflead.dev/posts/github-cop...
Copilot Agent Library - https://github.com/proflead/copilot-a...

Timestamps:

Introduction & Setup
[00:00] - Introduction to GitHub Copilot CLI.
[00:34] - What is GitHub Copilot CLI? (AI for terminal-based development).
[01:22] - How to install the CLI (npm, Homebrew, WinGet).
[01:45] - Login and permissions setup.

Core Commands & Slash Commands
[02:13] - Basic workflow and using natural language prompts.
[02:25] - Accessing the help menu with /help.
[02:41] - /models: How to switch between different AI models (Anthropic, GPT, etc.).
[03:02] - /context: Monitoring context usage for long sessions.
[03:09] - /clear: Resetting the current session.
[03:17] - /resume: Continuing a previous session using a session ID.
[03:44] - /plan: Creating a step-by-step execution plan before building.
[04:18] - /review: Using the code review agent to analyze changes.
[04:46] - /init: Generating project-specific instructions for the AI.
[05:09] - /compact: Compressing conversation history to save context space.

Advanced Agents & Automation
[05:30] - /delegate: Pushing tasks to a remote GitHub coding agent.
[06:11] - /fleet: Breaking complex requests into smaller tasks for parallel sub-agents.
[06:43] - /diff: Viewing file changes directly in the terminal.
[06:58] - YOLO Mode: Running tasks on full autopilot without manual approval.

Best Practices & Conclusion
[08:22] - Common mistakes to avoid (e.g., asking for too much at once, over-trusting generated code).
[09:01] - Final thoughts and comparison suggestions.

#github #copilotcli #githubcopilot #aicoding

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