VS Code: Agent Sessions Harden Up

Agent Host work shifted from new features to trust and clarity, with cleaner session state, retirement of legacy sandbox policies, and clearer failures for missing or empty models. Sessions UI and discovery also got performance and navigation fixes.

Duration: PT2M24S

Episode overview

This episode is a short developer briefing from VS Code.

It explains recent repository work in plain language.

  • Show: VS Code
  • Published: 2026-10-03T13:07:00Z
  • Audio duration: PT2M24S

Transcript excerpt

This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.

Hello, it's Friday, October 3rd, 2026, and this is your VS Code briefing.

The lead story is maturation. Across nearly 30 pull requests, Agent Host work is less about new capabilities and more about making agent sessions understandable, performant, and safe to run in enterprises.

First, sessions are getting organized. One change clarifies that a session holds the cumulative change set while each chat keeps its own scoped changes, and adds a chat-level summary to make that visible, in pull request 339288. Around it, there's a push to keep navigation out of the sessions tree, restructure…

Second, a clear policy pivot. Pull request 339396 retires legacy sandbox enforcement from the Agent Host contract and points enterprise control at Copilot managed settings instead of migrating old preview device policies. Companion work in 339401 refines sandbox setting descriptions and preview labels, and separate…

Third, failures get louder and more actionable. For bring-your-own-key models, empty replies no longer end as quote no response was returned unquote — the proxy now returns a descriptive 422 error with session and token details, in 339426. Related, in 339307, chat requests with an…

What's…

Nearby episodes from VS Code

  1. Agent Host Migration Holds Enterprise Line
  2. GitHub Auth Scoping and Agent Session Stability
  3. Session Grids, GitHub Hardening, and Chat Skills
  4. Agent Sessions Hardening and Memory Leak Cleanup
  5. Leak Cleanup Wave and Agent Session Hardening
  6. Weekly Recap - Sandbox Reliability, Chat Polish, and Leak Cleanup
  7. Faster Startup, Steadier Agents, Chat Polish
  8. Sandbox Reliability Push and Chat Consistency