Best-fit summary
Use approval queues when the agent needs a human decision: send this message, book this ride, publish this page, buy this item, or share this file. Use stale consent guards when the agent already has a decision but the current state might be meaningfully different from the state the user approved.
A text message AI assistant needs both. The queue captures a human-approved reply; the guard blocks that reply if the thread, recipient, or urgency changes before send time.
Approval queue
Optimized for intake, routing, notification, decision capture, and reviewer load.
Stale consent guard
Optimized for state comparison, expiry, drift detection, and execution blocking.
Audit log
Optimized for post-action evidence, replay, debugging, and compliance review.
Browser context
A computer-use cache gives the guard the state evidence it needs: screenshot, page URL, DOM hints, and prior step context.
Publishing context
For AI agent website-building, approval queues capture publish permission, while stale consent guards detect changed pages, sources, domains, or build output before deployment.