Why pause for a human
An autonomous agent can take actions that are costly or irreversible, like sending an email or deleting data. A human in the loop gate pauses the agent at a chosen point and waits for a person to approve, edit, or reject the proposed action.
Where to place gates
- Before high risk actions: payments, deletions, external messages.
- At plan approval: review the whole plan before execution begins.
- On low confidence: pause when the agent signals uncertainty.
A gate is not on every step, only where a mistake would be expensive or hard to undo.
How the gate works
The agent stops and surfaces the proposed action with its reasoning. The human approves, modifies the arguments, or rejects with feedback that the agent folds back into its next decision.
The trade off
- Too many gates and the human is a bottleneck and stops reading carefully.
- Too few gates and a bad action slips through.
The art is gating exactly the irreversible or expensive actions while letting safe, reversible steps run automatically.
Key idea
Human in the loop gates pause the agent before costly or irreversible actions so a person can approve edit or reject, placed only where a mistake is expensive to avoid making the human a bottleneck.