Agents can now verify your UI changes without leaving VS Code

VS Code 1.110 introduces browser agent tools for GitHub Copilot, allowing AI agents to open, interact with, and inspect a running web app directly inside VS Code's integrated browser. The feature closes the UI verification gap in the AI development loop — agents can now navigate pages, click elements, take screenshots, handle dialogs, and even run arbitrary Playwright code. Setup requires enabling an experimental setting and toggling browser tools in the Chat view. Use cases include form validation testing, responsive layout checks, accessibility audits, and console error triage, all without leaving the editor.