In practice
Built for the way agents actually work.
A live browser page as a node
A browser portal is a Chromium page that lives on the canvas beside your terminals. The agent wired to it navigates, clicks, fills forms, reads the accessibility tree and takes screenshots with relay portal. It needs a Chromium install on your machine.
An Android phone on the canvas
A device portal holds an Android emulator or a physical phone. The agent taps, swipes, types, presses hardware keys, launches apps and reads logcat, the same way it drives a browser.
Only the agents you wire
A portal answers to the agents connected to it and to no one else. Draw the wire to hand an agent the browser; remove it to take it back.
Close the loop on a build
The agent that changed the checkout page can open it, pay with a test card and tell you what broke, while you watch it happen on the same canvas.
Your next build