ADR-0087 exemption (no-migration-prescription): a boot-restore verdict and a metadata-door verdict on datasources the host registers from code, which the published contract already calls read-only: no authorable key, spelling, export or stored shape moves, and no stored row is rewritten, converted or dropped. A row an earlier runtime write left under a code-defined name stays in sys_metadata and is removed by the operator with the metadata door's own DELETE; which stored edit an operator meant to keep is not something a ledger entry can rewrite. The other categories are closed on facts: every bumped package publishes (not unpublished); no ADR-0087 id covers this restore or this door (not already-registered); and the change is a verdict, not a declaration (not runtime-interface-only or type-surface-only).