Make agent_eval return a running projection by default so follow-up steering does not wait for child model calls. Keep checkpoint resume blocking by default unless block=false is explicit.
Teach /agent, /swarm, prompts, and docs to poll workers nonblocking and reserve block:true for deliberate terminal waits. Add Ctrl+S as a reliable queued-message send path before falling back to draft stash.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Hunter B
5ca618d70a