Your codebase, your rules: Customizing Copilot with context engineering

YouTube Excerpt: Join us to unlock the full potential of GitHub Copilot in VS Code into a deeply context-aware AI pair programmer that understands not just your specific codebase, but also your team's workflows. Learn how to combine custom instructions, prompt engineering, MCPs, and context engineering principles to give Copilot insight into your project structure, architectural decisions, and coding patterns. Walk away with a practical framework for scaling context-aware workflows across enterprise codebases with GitHub Copilot Enterprise, along with ready-to-use templates for project-wide context and plan-specific instructions. Speaker: Harald Kirschner, Principal Product Manager, Microsoft (Speaker) — LEARN MORE— How the VS Code team uses custom instructions and prompts: https://github.com/microsoft/vscode Demo: TDD agent with automated red-green-refactor workflow: https://github.com/digitarald/chatarald Demo: Multi-agent design exploration: https://github.com/digitarald/frontend-vibes-template New feature spotlight: Planning agent: https://code.visualstudio.com/docs/copilot/chat/chat-planning Start with our context engineering guide: https://code.visualstudio.com/docs/copilot/guides/context-engineering-guide — CHAPTERS — 00:00 Welcome to context engineering 01:02 What Copilot sees: The default context in VS Code 04:59 Core techniques: Using instructions, prompts, and Plan Mode 12:18 Example workflow: Custom test-driven development (TDD) flow 15:35 Conclusion and getting started #GitHubCopilot #GitHubUniverse #GitHub Watch more videos from GitHub Universe 2025: https://www.youtube.com/watch?v=P6Va0_KILi4&list=PL0lo9MOBetEFKNlPHNouEmVeYeyoyGTXC Stay up-to-date on all things GitHub by connecting with us: YouTube: https://gh.io/subgithub Blog: https://github.blog X: https://twitter.com/github LinkedIn: https://linkedin.com/company/github Insider newsletter: https://resources.github.com/newsletter/ Instagram: https://www.instagram.com/github TikTok: https://www.tiktok.com/@github About GitHub It’s where over 100 million developers create, share, and ship the best code possible. It’s a place for anyone, from anywhere, to build anything—it’s where the world builds software. https://github.com

Join us to unlock the full potential of GitHub Copilot in VS Code into a deeply context-aware AI pair programmer that understands not just your...

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