Visual Studio Code 1.133 has been released, featuring a significant architectural shift with the introduction of a dedicated Agent Host process that separates AI agents from the editor, allowing for shared multi-window sessions and remote execution. This update also includes the new Agent Host Protocol (AHP), which enables extensible third-party tools and parallels existing protocols like LSP and DAP. Additionally, developer-friendly features have been added, such as the ability to mix Anthropic and Copilot models in Claude sessions, an experimental option to bypass GitHub sign-in, and auto-reloading HTML in the integrated browser. The update is available for Windows, macOS, and Linux, with early testing options through the Insiders build
Visual Studio Code 1.133 Released: Major Agent Host Architecture Shift and Open AI Protocol
Visual Studio Code 1.133 introduces a dedicated Agent Host process that decouples AI agents from the editor, enabling shared multi-window sessions and remote execution. Microsoft pairs this architectural shift with an open Agent Host Protocol (AHP) spec, positioning the communication layer alongside LSP and DAP to support extensible third-party tooling. The update also delivers developer-friendly features like mixed Anthropic and Copilot model switching in Claude sessions, an experimental toggle to skip GitHub sign-in, and auto-reloading HTML in the integrated browser. The update is now rolling out to Windows, macOS, and Linux, with early testing available through the Insiders build.
