Handing side quests to a second Claude session

TL;DR Claude Code sessions on the same machine can now list and message each other. That is the right tool for a session already mid-task, and the wrong one for starting a new task: a fresh session takes about ninety seconds to bind the socket that makes it addressable, and the message then queues behind the first-run trust dialog. To hand a side quest to a new session, launch it with the prompt already attached instead. I tested the quoting and I have listed where it breaks.