Anthropic launched Claude Managed Agents on April 8, 2026, a hosted platform that handles containerization, sandboxing, state management, and error recovery so developers can ship production agents without building that infrastructure themselves. The underlying architecture decouples the model harness from execution sandboxes so each component can be upgraded independently, with time-to-first-token dropping ~60% at p50. Pricing is standard Claude API token rates plus $0.08 per session-hour; early customers include Notion, Rakuten, and Asana, several of which have already shipped agent-powered features. Anthropic claims the service reduces time-to-production from months to days.