Finish Cornerstone migration
Finish the Cornerstone conversion project and remove the Migrator when WordPress no longer depends on it.
The intended end state is normal WordPress content that remains usable after Cornerstone Migrator is removed.
Review the remaining inventory
Before cleanup, check that the Pages and Posts you intended to convert are complete and that any deliberately skipped items are understood.
Use Clean Exit
Run the product's Clean Exit checks. Resolve any blocker before finalising. Warnings should be reviewed rather than ignored simply because the frontend currently looks correct.
Remove temporary migration state
Complete the supported finalisation/cleanup flow and confirm converted Pages still edit and render correctly after the Migrator is deactivated.
Remove the plugin
Once the site has passed the final checks and you have a current WordPress backup, deactivate and delete Cornerstone Migrator. The converted content should not require the plugin to remain active.