Implementation Notes for Structuring Rollback Checkpoints

Rollback is only as good as its checkpoints, and checkpoints are only useful when they capture state, permissions, and workflow position together.

Restoring state without restoring the permissions and workflow position that surrounded it produces a chimera: half old system, half new, fully confusing.

What a checkpoint must include

• The state snapshot with its schema version.
• The grant set active when the snapshot was taken.
• Workflow positions, so restored state meets compatible expectations.

Use the architecture guide, blackboard schema, and changelog to make each checkpoint restore a complete, coherent situation.