Use when a Claude Code session in this folder crashed or was lost mid-work (computer died, terminal closed, Claude broke) and the user reopened Claude without a checkpoint and does not know the session ID — rebuild the last session for THIS folder from its on-disk transcript and continue. Any request to recover, restore, or resume a crashed or dead session qualifies. NOT for transient API/rate-limit errors mid-turn (use retry), NOT for deliberately saved state (use /checkpoint resume), NOT for finding an old session by topic across machines (use /jacked).
