VS Code 1.133 Adds an Agent Host That Spans Windows and Lets You Switch Model Providers Mid-Session
VS Code Release Notes·medium signal
VS Code 1.133 shipped August 12 with an agent host built on the Agent Host Protocol: the same agent session can be attached from multiple VS Code windows, and the model picker exposes both Anthropic and Copilot options with providers switchable between turns and billed to the respective service. An experimental `chat.agentHost.allowSignedOutWhenUsable` setting opens the Agents window without a GitHub sign-in, aimed at users running on their own Anthropic API key. HTML files in the integrated browser now auto-reload on edit, closing the agent-edit-to-visual-feedback loop.