Persistence

katu stop --all (or a server restart via SIGTERM) writes every running session’s windows and splits — with each pane’s working directory — to ~/.katu/sessions.json before it exits. Run katu resurrect afterward (it starts the server if needed) to recreate them: same windows, same splits, same directories, fresh shells.

Agent windows come back running the AI command again rather than a plain shell, and resume the actual conversation if [ai] resume_flag is set. Sessions already running under a saved name are left alone, so running it again is always safe.

This is v1 and deliberately minimal: no scrollback, no popup state, no zoom, and no autosave — only a clean shutdown saves anything, so a crash isn’t covered. AI context needs no special handling: context files are keyed by session name alone, so a resurrected session reconnects to its existing KATU_AI_CONTEXT automatically.