VS Code: Copilot Authentication and Terminal Safety Updates

Transcript

Good morning, this is your VS Code developer briefing for May 24th, 2026.

Three pull requests were merged yesterday, led by authentication and testing improvements. Bhavyaus merged a fix preventing empty customization updates during terminal steering operations, resolving issue 317763 by preserving frozen system prompts instead of falsely signaling removal. The change also graduated an experimental Copilot chat setting to always-on status.

Anthony Kim merged updates gating Copilot CLI smoke tests on existing environment variables, streamlining the testing pipeline. Dileepyavan merged a build fix addressing missing version information for MXC binary content in sanity checks.

Eight additional commits delivered substantial functionality updates. Dmitriy Vasyura fixed a critical BYOK regression affecting non-OAuth Copilot token pathways, introducing a new authentication service method to properly handle evaluation proxy scenarios. The fix ensures Copilot tokens work correctly across different authentication methods.

Bhavya U contributed two major improvements: fixing stale background compaction across model switches and preventing built-in tool grouping during active tool searches. The compaction fix ensures conversation summarization respects current model context windows rather than applying outdated summaries from previous models.

Dileepyavan enhanced terminal security by implementing chat permission level checks in sandbox prechecks, adding 18 lines of safety logic and comprehensive test coverage.

Ulugbek Abdullaev resolved misleading sidebar descriptions in the Agents app, preventing hidden tool invocations from displaying confusing status messages like "Created 0 todos."

What's next: Authentication improvements suggest continued focus on Copilot integration reliability. Terminal sandbox enhancements indicate ongoing security hardening efforts.

That's your VS Code update. Back tomorrow with more developer news.