Make it write a skill and rule hook for PreCompact to do a handoff that explains what was worked on, what to know, and what to do next. If it goes off the rails after compaction then it won’t be great in a new session either, and you want to make sure you maximize continuity or development will be unsustainable. A backlog.md and improvements.md workflow also helps with this (ticket numbers, descriptions, “focus on BACK-0075,” etc.)