VS Code Copilot Extension is Open Source

Estimated read time 2 min read

Post Contenthttps://www.youtube.com/shorts/5Ffbk_hJWWI

​ 🎙️ On this episode, we’re joined by Burke Holland from the Visual Studio Advocacy Team for a deep dive into the newly open-sourced VS Code Copilot Extension.
💡 Burke shares his expert insights on using Copilot Custom Modes to guide the AI model’s behavior—helping you reduce costs and optimize both output and chat interactions.
🔥 He also introduces “Beast Mode”, now integrated into VS Code Insiders—and yes, it’s available TODAY!
🚀 To wrap up, discover what’s next for the project and how you can contribute to this exciting open-source initiative.

Resources:
Find the latest info about the open-source VS Code Copilot Chat Extension project at: https://github.com/microsoft/vscode-copilot-chat and https://code.visualstudio.com/

Use Chat Modes in VS Code: https://code.visualstudio.com/docs/copilot/customization/custom-chat-modes

Awesome Copilot: https://github.com/github/awesome-copilot

Burke’s Beast Mode: https://burkeholland.github.io/posts/beast-mode-3-1/

Beast Mode 3.1 GIST gist.githubusercontent.com/burkeholland/88af0249c4b6aff3820bf37898c8bacf/raw/f2bf4380b2dd886f1344544f8125c5ea10854a9c/beastmode3.1.chatmode.md

GPT 4.1 Prompting Guide https://cookbook.openai.com/examples/gpt4-1_prompting_guide
GPT 5 Prompting Guide https://cookbook.openai.com/examples/gpt-5/gpt-5_prompting_guide

📌 Let’s connect:
Jorge Arteiro | https://www.linkedin.com/in/jorgearteiro
Burke Holland | https://www.linkedin.com/in/burkeholland/

Subscribe to the Open at Microsoft: https://aka.ms/OpenAtMicrosoft

Open at Microsoft Playlist: https://aka.ms/OpenAtMicrosoftPlaylist

📝Submit Your OSS Project for Open at Microsoft https://aka.ms/OpenAtMsCFP

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