🤖 GitHub Copilot
Features, Marketplace & More
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Online at https://ignatandrei.github.io/Presentations/GitHubCopilotprez.html
For download https://ignatandrei.github.io/Presentations/GitHubCopilot.zip

#### About me

Andrei Ignat http://msprogrammer.serviciipeweb.ro/

    System.Console.WriteLine("Ignat Andrei");
    System.Console.WriteLine("GitHub Copilot");

YouTube 5 minutes .NET and tools : http://bit.ly/5MinTools

Book Making Open Source Component : http://bit.ly/NetOpenSourceComponent

Book Copy Paste from StackOverflow : https://amzn.to/2PQ8EDc

Roslyn Source Code Generators with examples : https://ignatandrei.github.io/RSCG_Examples/

Monthly meetings: https://www.meetup.com/Bucharest-A-D-C-E-S-Meetup/

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Welcome everyone! Today's talk is about GitHub Copilot — GitHub's AI-powered developer platform that has grown far beyond simple autocomplete. I will cover: - What Copilot is and its core features: completions, chat, inline editing, agent mode - MCP / CLI integration - Working in parallel with the (many) CLI and GitHub.com (PR review, Copilot Chat on the web) Target audience: developers, tech leads, architects, and anyone evaluating or already using AI coding tools. Feel free to ask questions at any time — or hold them until the Q&A slide at the end. Press S at any time to see these speaker notes. Press ESC for an overview of all slides.

#### History GitHub Copilot

https://github.com/features/copilot

GitHub Copilot is an AI-powered coding assistant developed by GitHub .
It uses large language models trained on billions of lines of public code to suggest code, functions, tests, and more — right in your editor.

- Powered by Models - either in cloud on local ( see Ollama in VSCode ).
- Available as a free tier and paid plans
- Where can you work with Copilot ?

Open VSCode and show the GitHub Copilot Chat button in the sidebar and the inline chat icon in the editor. Also see ollama model qwen3 for local models Open also Copilot CLI in terminal . Open https://github.com/ignatandrei/powershellProfile/pull/6#issue-comment-box Open https://github.com/ignatandrei/powershellProfile/agents

#### Special features

- Resume for Copilot CLI
- Slash Commands – `/explain`, `/fix`, `/tests`, `/doc`, `/optimize` and more.
- Context Variables – `#file`, `#selection`, `#codebase`, `#terminal`, `#web` to provide rich context.
- MCP / CLI Integrations

Demo 1 Demonstration of slash commands and context variables in Copilot Chat. Demo of playwright MCP server in VS Code Agent Mode. Demo of playwright CLI tool in terminal.

#### GitHub Copilot Extensions & Marketplace

Agents, Skills, Hooks
Demo Code 2
And plugins https://awesome-copilot.github.com/learning-hub/installing-and-using-plugin Show Andrei Ignat Marketplace
In copilot : https://docs.github.com/en/copilot/how-tos/copilot-cli/customize-copilot/plugins-marketplace /plugin marketplace list /plugin marketplace remove dotnet-agent-skills --force /plugin marketplace add https://github.com/dotnet/skills/ /plugin marketplace browse dotnet-agent-skills See https://github.com/dotnet/skills/tree/main/plugins/dotnet-diag /plugin marketplace add https://github.com/ignatandrei/AICopilotMarketplace https://awesome-copilot.github.com/learning-hub/installing-and-using-plugins/#sharing-marketplace-registrations-across-a-team

# Questions?

## Thank you for your time 🚀