---
title: 'Human out of the loop'
description: 'An operating condition in which a system completes a scoped activity without routine human participation in its action path.'
canonical_url: 'https://darkfactory.dev/glossary/human-out-of-the-loop'
markdown_url: 'https://darkfactory.dev/glossary/human-out-of-the-loop.md'
collection: glossary
date_published: '2026-08-03T00:00:00-04:00'
date_modified: '2026-08-26T00:00:00-04:00'
---

# Human out of the loop


## Definition

Human out of the loop describes a scoped activity that a system completes without routine human participation in its action path. The phrase applies to a defined class of work, not to the organization as a whole.

People still set policy, own the system, review aggregate evidence, handle exceptions, and remain accountable for outcomes. A lights-out software factory may generate and verify certain reversible changes without case-by-case review while reserving security, production deployment, or ambiguous product decisions for people.

Removing a person from the action path raises the standard for automated evidence and containment. The system needs narrow authority, reliable verification, bounded effects, monitoring, rollback where possible, and a clear trigger for bringing a person back in.

## Distinguish it from nearby terms

Human out of the loop concerns execution. Human on the loop keeps a person in a supervisory position with intervention authority. Full organizational abandonment is not an autonomy model; it is an accountability failure.

## Check your understanding

A factory automatically upgrades patch versions in isolated services after tests pass, but a person approves database migrations. It is human out of the loop for one bounded change class, not for software delivery in general.

## Also called

HOOTL, lights-out

## Related terms

- [Dark software factory](https://darkfactory.dev/glossary/dark-software-factory)

## Related factory areas

- [Factory assurance & maturity claims](https://darkfactory.dev/factory/factory-assurance)

## Evidence and further reading

- [StrongDM: Software Factories and the Agentic Moment](https://factory.strongdm.ai/)
- [Agentic Autonomy Levels](https://addyosmani.com/blog/agentic-autonomy-levels/)