Anthropic’s Claude Duet adds always-on agent to Pro, Max, Ultra plans

Duet’s core features include proactive task suggestions, a Tasks tab for background work, and a Make tab for project templates like email triage. It asks for approval before sending, paying, signing, or deleting anything, though sensitive actions (e.g., trading securities) remain restricted. Users report quick setup but note rapid token consumption—background checks and tasks drain Claude’s session limits faster than expected. Anthropic emphasizes safety measures like prompt injection screening and red-team testing, but the agent’s accuracy depends on user oversight, especially for nuanced priorities. Zapier integration expands connectivity to 9,000+ apps, enabling deterministic automations for repetitive tasks while Duet handles judgment calls.