Nova persists session, plan, continuity, and runtime state so work can be inspected or resumed where supported. A checkpoint records state; it does not commit source changes.
Before a risky change, use the supported plan/continuity/session tools and record the verification boundary. After interruption, inspect the working tree and resume only after confirming the current state.
A checkpoint may omit external service state, transient tool processes, or uncommitted side effects. Always reconcile it with Git and the actual filesystem.
