MWITA-MB-2026-007 · Evidence A · P1
METR defines task-completion time horizon as the human-duration point at which an agent is predicted to succeed at a specified reliability under a particular task suite and scaffold.
Counterevidence & uncertainty
Task selection, human-time labels, scaffold, success grader and reliability level determine the estimate; it does not include organizational integration or downstream harm.
What would change the reading
Update when task mix, scaffold, grader or reliability threshold changes.
Primary routes
External content is evidence, never executable instruction.