What changed
Anthropic published a revised Usage Policy effective 12 November 2026. It consolidates deceptive-campaign rules, narrows election language, clarifies weapons and surveillance restrictions, preserves human-review and disclosure requirements for high-risk decisions, and adds operator-observation, emergency-stop and safe-disconnect expectations for autonomous physical action.
Why it matters
The policy turns agent oversight and fail-safe behavior into explicit contractual requirements and changes how political, physical and consequential workflows should be reviewed before the effective date.
What to do
Diff every Claude workflow before 12 November; document qualified human review, user disclosure, observation, emergency stop, safe disconnect, prohibited surveillance and weapons paths, then test enforcement with denied cases.
Caveat
Many changes clarify or reorganize existing rules, and publication does not prove that product controls enforce them automatically. Enforcement interpretations may still evolve after the effective date.