18 - Copilot Extensions and Marketplace

Extend Copilot with Extensions and Skillsets from the Marketplace. MCP integration, third-party agents (Claude, Codex), and how to create your own custom extension.

What you'll learn

• Extensions Architecture
• Types of Extensions
• Skillset Structure
• Use Cases for Skillsets
• Authentication and Authorization

This article is part of the GitHub Copilot series on federicocalo.dev.

Read the full article

The complete article (14 min read) with code examples, diagrams, and practical exercises is available here:

➡️ 18 - Copilot Extensions and Marketplace

https://federicocalo.dev/en/blog/github-copilot-extensions-marketplace

By Federico Calò — Software Developer & Technical Writer