Exactly that's why Tandem has POST /wingman-alert. When the AI hits something it can't handle (captcha, login wall, ambiguous decision), it explicitly surfaces it to the human instead of guessing or silently failing.
The handoff is a first-class feature, not an afterthought.
We also built 6 security layers around this (NetworkShield, OutboundGuard, ScriptGuard, BehaviorMonitor, Gatekeeper, session tokens), partly because silent automation without oversight is genuinely dangerous when an agent has full browser access."
ππ