Definition

What is human-in-the-loop AI?

Human-in-the-loop AI is a design in which an AI system produces work but a person makes the decision that carries consequence. The AI drafts, classifies, summarises or proposes; a human reviews that output and approves, edits or rejects it before it takes effect. It is not the same as a notification or an activity feed, which tell a person what already happened. In a genuine human-in-the-loop system the process stops and waits: the message is not sent, the quote is not issued and the purchase is not placed until an approval is recorded. Well-built implementations add three properties. The pause is durable, so a pending approval survives a restart or a deploy. The audit trail attributes every change to a human or to an agent. And a human edit takes precedence, locking the record so that a later AI run cannot silently overwrite the correction.

Approval gate vs notification

 NotificationApproval gate
When it firesAfter the actionBefore the action
If nobody reads itThe action still happenedNothing happens
UndoDamage control after the factNot required
What it protectsAwarenessThe customer, the price, the order

The distinction matters commercially. A quote sent at the wrong margin, or a cold email sent to the wrong list, cannot be recalled. Awareness after the fact is not a control.

What a correct implementation requires

A durable pause

An approval may sit for days. If the pending state lives only in memory, a restart either loses the work or re-runs earlier steps and duplicates their side effects. The pause has to be persisted so the run resumes exactly where it stopped.

Actor-attributed audit

Every change records whether a human or an agent made it, and which agent run produced it. Without that, no one can reconstruct why a record looks the way it does, and "the AI did it" becomes unfalsifiable.

Edit precedence

When a person corrects an AI-produced field, that field is locked against further AI writes. Otherwise the next run quietly reverts the human's judgement and the reviewer stops trusting the queue.

A named approver role

Approval is a permission, not a courtesy. The role that can release a quote should be explicit, and separate from the role that can merely view or draft.

Where WorkAgents AI applies it

All three products share the same rule: AI drafts, a person approves.

Related

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