Test App UI

Visually test the BrowserOS app extension UI — both the new tab page (left sidebar) and the right side panel (chat) — by starting the dev environment and inspecting via CDP.

When to use

After making code changes to apps/app/ (the Chrome extension), use this skill to:

• Verify new UI components render correctly
• Check navigation between views works
• Confirm layout/styling changes look right
• Test interactive elements (buttons, inputs, forms)

Prerequisites

• Go must be installed (brew install go) — the dev tool is written in Go
• BrowserOS.app must be installed at /Applications/BrowserOS.app/
• The scripts/dev/inspect-ui.ts utility must exist (CDP inspector script)

Step 1: Start the dev environment