Anthropic Upgrades Claude Code Projects to Run Parallel AI Workers Hands-Free

Anthropic updated Claude Code Projects with proactive coordinator messages, read-only thread sharing, reminders, /btw and /fork branching commands, and improved artifact navigation, reducing the monitoring needed when several cloud sessions run in parallel. Each project is a long-running conversation whose coordinator assigns work to threads, each an independent Claude Code cloud session with its own repository copy and Git branch. The public beta, launched September 17 for waitlisted Pro and Max subscribers, has no separate fee but draws on existing Claude Code allowances, with a 200-new-thread daily limit per account.