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title: VS Code 1.129 Moves Agent Sessions Out of the Editor Window
description: VS Code 1.129 introduces the Agent Host, a dedicated process that runs AI coding agents outside the editor window using a new open Agent Host Protocol (AHP)....
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# VS Code 1.129 Moves Agent Sessions Out of the Editor Window

**[DevOps.com](https://daily.dev/sources/devops)** · 5 min read · 0 upvotes · 0 comments

## Summary

VS Code 1.129 introduces the Agent Host, a dedicated process that runs AI coding agents outside the editor window using a new open Agent Host Protocol (AHP). Unlike the previous model where agent sessions were tied to a single editor window, the new architecture decouples sessions from the editor lifecycle, enabling persistent sessions that survive window closures, shared multi-client sessions where multiple clients can observe and control the same session, and remote execution where the host runs on a separate machine. The release also adds session-management tools for agent-to-agent handoffs, a new Agents window editor panel, GitHub Enterprise Copilot authentication support, and a terminal command shortcut. Microsoft is positioning AHP as an open, vendor-agnostic protocol to compete in the agentic IDE space, with governance implications for regulated organizations tracking multi-client audit trails.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://devops.com/vs-code-1-129-moves-agent-sessions-out-of-the-editor-window>

## Questions this post answers

### What does the agent host in VS Code 1.129 actually change about how Copilot or Claude agent sessions work?

VS Code 1.129 introduces a dedicated agent host process, separate from the editor's extension host, that runs AI agents like Copilot, Claude, and Codex using a new open protocol called the Agent Host Protocol (AHP). Previously, closing the editor window ended the agent session's context; now sessions persist independently, supporting shared multi-client access and remote execution on a separate machine from the client.

_Track how agent architecture shifts like this reshape daily AI-assisted coding workflows on daily.dev._

### How do I enable the new agent host in VS Code 1.129?

Enable the chat.agentHost.enabled setting, then pick a harness from a dropdown available in either the editor window or the newer Agents window. Microsoft is rolling out the agent host gradually rather than turning it on for everyone at once, with the full feature set already available to Insiders users.

_Developers adopting early VS Code agent features can follow rollout details like this on daily.dev._

### Can GitHub Copilot now authenticate through a GitHub Enterprise instance instead of github.com in VS Code?

Yes, as of VS Code 1.129, GitHub Enterprise users can authenticate Copilot through their own GHE instance rather than being limited to github.com. This closes a gap that previously blocked Enterprise-backed Copilot subscriptions from completing sign-in at all.

_Teams rolling out Copilot under enterprise identity setups can keep up with fixes like this via daily.dev._

## Similar posts on daily.dev

- [Visual Studio Code 1.115 introduces VS Code Agents app](https://daily.dev/posts/visual-studio-code-1-115-introduces-vs-code-agents-app-v4yc2vcif) · InfoWorld · 0 upvotes · 0 comments

---

Tags: [#microsoft](https://daily.dev/tags/microsoft), [#github](https://daily.dev/tags/github), [#ai-agents](https://daily.dev/tags/ai-agents), [#vscode](https://daily.dev/tags/vscode)

[View this post on daily.dev](https://daily.dev/posts/vs-code-1-129-moves-agent-sessions-out-of-the-editor-window-sba85pvyw)

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