The Chrome extension
The Magister Chrome extension is how the agent drives your browser. Without it, the agent still has its own sandboxed web browser on its machine; with it, it can act on the tabs you have open.
Installing — go to the extension page in Magister. Click Install from Chrome Web Store. The store page opens in a new tab; click Add to Chrome there.
Auto-connect — the first time you open a Magister tab after installing, the extension reads a short-lived auth token from the page and signs itself in automatically. You don't need to log in again. If auto-connect ever fails, the extension page has a Reconnect button.
Project switcher — click the Magister icon in the Chrome toolbar. A small popup shows every project you have access to and which one is currently active. Switching projects in the popup changes which project any browser action gets attributed to.
Attaching a tab — once the extension is connected, the agent can attach to a tab when you ask it to ("look at the pricing page I have open"). You'll see a small indicator in the tab when it's attached. Detach from the extension popup.
Multiple Chrome profiles — each Chrome profile needs to install the extension separately. Profiles are isolated by design.