Come Back as What You Were
Under the lease, coming back after a lock had to mean coming back as a spectator, because the world might have handed the keyboard to someone else while you were gone. Under the shared contract there is nothing to hand over. So a phone that lost its connection — a tunnel, a lock, the app sent to the background — reconnects as the same kind of surface it was: a device approved for control comes back as an input surface beside whoever is there, and an observer comes back as an observer. You do not have to press anything to type again, and nobody else has to give anything up.
The Address Has Not Changed
What makes coming back safe is the same address as before: the daemon's incarnation plus the session's identity. If both still match, it is the same fire, and the phone attaches to it. If the incarnation changed — the owner was restarted, the Mac rebooted — process identity is gone, and the phone does not pretend otherwise; on the Mac those panes rematerialize from their declarations as new sessions. Titles are not addresses, and neither are process numbers. A changed incarnation also clears the phone's old panes rather than dressing new sessions in old names.
Nothing Comes Back With You
Coming back as the same kind of surface does not mean coming back with your past intentions. Moving to the background or losing the network discards pending input on the spot. A reconnect never replays queued keystrokes, never resends a create whose answer never arrived, never restores a hold, and never repeats an Anvil action. Input is accepted again only after the reconnected pane has received its replay completely — a phone does not type into a screen it has not finished painting — and a test proves that guard with the keyboard open the whole time.
Which Interruptions Count
The phone is precise about what an interruption is. Only moving to the background pauses its connections. A momentary inactive state — pulling down Control Center, opening the app switcher, a system alert — keeps every connection and every hold, and returning to the foreground connects each paused link once, not in a storm. An explicit Disconnect on a Mac's row, or that Mac's gateway refusing or revoking the device, stops automatic reconnection for that Mac until Connect is pressed; becoming active again never overrides that choice.