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AI Engineering
VS Code Blog·5 min read
Open Source AI Editor: First Milestone
TL;DR
Software developers often face challenges in integrating AI tools into their workflows. The GitHub Copilot Chat extension has been open-sourced, marking a significant step towards transforming Visual Studio Code into an open-source AI editor.
✦ Why It Matters
Engineers can now customize and enhance AI capabilities in their coding environments through open-source contributions.
Key Takeaways
- Explore the open source codebase on GitHub.
- Contribute by opening pull requests or filing issues.
- Learn about agent mode and LLM context handling.
- Stay updated on future integrations into VS Code core.
Full Summary
In June 2025, the VS Code team announced their plan to transform VS Code into an open source AI editor, reaching a key milestone by releasing the GitHub Copilot Chat extension as open source on GitHub. The motivation behind this move is to leverage the open-source community for innovation and to ensure transparency in AI development.
Developers can now explore the codebase, understand how agent mode operates, and see the context sent to large language models (LLMs). The team encourages contributions and feedback, with plans to integrate the extension's code into the core VS Code codebase.
While the original GitHub Copilot extension remains closed source, the open-source Chat extension will eventually provide similar functionality. This initiative aims to enhance performance, extensibility, and user experience in coding environments.