I made a skill and a hook so my 24/7 Claude Code agents pick up where they left off after a restart. One file each

I run 8 Claude Code sessions in tmux, one per job, and a cron restarts them at 3am. Every morning they woke up blank and I re-explained from my phone what we were doing. A restart on the machine should go unnoticed on my side. So I wrote persistent-handoff: a