Claude Duet proactive agent

Claude Duet is in research preview, available to U.S. Pro and Max subscribers via a waitlist at claude.com/product/claude. The app runs on Opus 5.5 on a cloud virtual machine and operates while the user's phone and laptop are off. It monitors Slack, email, and calendars, supports over 6,000 connectors including invoicing and payroll tools, and integrates with QuickBooks, Gusto, DocuSign, HubSpot, and Shopify. Rather than checking continuously, Duet checks connected accounts every few hours and sends a morning brief when action is needed. Background checks draw on the same usage allowance as regular Claude chats, which means continuous checking would consume Pro and Max limits faster; at Opus 5.5 API pricing, six background checks per day could cost roughly $34 per month at API rates, exceeding the Pro subscription price. All irreversible or sensitive actions require explicit user approval before execution, and securities trading and inter-account money transfers are blocked entirely. Purchases require two approvals: Duet confirms the item and Stripe's Link wallet approves the spend, after which Duet pays with a virtual card that keeps the real card number private. Credential handling follows the Claude Managed Agents design, so Duet never directly sees passwords or sign-in tokens. A safety classifier blocks sharing of credit card numbers or government IDs, and sensitive health or financial data is only transmitted when the user explicitly instructs Duet to send it.