Browser agents
Agent tabs are durable logical actors bound to recoverable browser surfaces.
Identity
An agent has an agentId independent of its current browser tabId. When a tab closes or reloads, Torsionfield rebinds or restores the logical agent.
Protection
The stock extension can shield input, group and pin tabs, resist discard, and restore closure. It cannot make a browser tab literally uncloseable; native close inhibition is optional Chromium work.
Scheduling
Concurrency follows user configuration, provider policy, and available resources rather than an arbitrary built-in limit.