GitHub Publishes Beginner Tutorial on Teaching Copilot to Understand Your Codebase

GitHub's official blog published a beginner-focused tutorial on how to make GitHub Copilot understand your codebase. It gives three concrete practices: adding custom instructions and skills to a repo, using custom agents, and connecting MCP servers like Playwright. These are configuration methods for feeding a repo's own context and external tools into Copilot, not upgrades to the model itself. For developers just starting with GitHub Copilot, the value lies in consolidating scattered configuration points into a followable introduction: custom instructions and skills in the repo align Copilot's output with project conventions, while custom agents and MCP servers connect it to external capabilities such as browser automation. The tutorial involves no new release or pricing change, only operational guidance, so teams already familiar with Copilot configuration will see no functional-level changes.