Review is warranted when expected loss exceeds review cost
Human review is economically justified for a decision when the product of error probability and error impact exceeds the cost of review. Work failing this test is a candidate for automation—or exclusion from the pipeline.
Supporting evidence
In An Agentic World Where Automation Gets Cheap, Which Work Is Worth Routing to a Human?
Original excerpt
P(error) × Impact(error) > Cost(review)