ADR-0087 exemption (no-migration-prescription): Claimed on a POSITIVE argument rather than on the detector finding nothing. Stated plainly: the table above IS a prescription, and it is addressed to a TYPESCRIPT CONSUMER at their own call site, delivered by the compiler — the audience ADR-0087's D8 addendum says the ledger explicitly does not serve. Nothing authorable moves: no spec key, no Zod schema, no object definition, no config field and no stored representation changes spelling or shape, so `objectstack migrate meta` has nothing to visit, `spec-changes.json` has nothing to project and the upgrade guide has no row to gain. Minting a ledger id here would put a prescription in the one ledger this gate keeps true that none of its three consumers can project. The other four categories are closed on facts: `@objectstack/client` publishes to npm (not `unpublished`); no id pre-dates the base (not `already-registered`); no named symbol is a non-metadata runtime interface whose members moved (not `runtime-interface-only`); and `type-surface-only` fails its predicate 4 (`narrowed-from-erased`), because the request type was concretely declared at the merge base rather than `any` — this narrowing removes members from a concrete type instead of replacing an erased one. ⚠️ Residual declared rather than hidden: the vocabulary still has no category for a source-author prescription the ledger must not carry, which is D8's blind spot reached from a third direction; raised for the maintainer in the PR report rather than resolved by dropping the BREAKING banner.