Checkpoints & rewind

Checkpoints name a recoverable context boundary inside a durable session.

Create and inspect

/checkpoint before-refactor
/checkpoint list

The checkpoint event records the exact model-visible context, not merely a human label or source-control commit.

Rewind

/rewind <checkpoint-event-id>

Rewind appends a new active lineage from the selected checkpoint. The abandoned continuation remains available for audit and comparison.

Source files

A session rewind does not automatically revert the workspace. Use Git or guarded file mutations when source state must also move back, and verify that the chosen source revision matches the checkpoint’s assumptions.