ADR-0087 exemption (no-migration-prescription): No authorable key is renamed, retired or re-typed: every one of the twelve cron- and template-typed keys still takes the bare string and the same-dialect envelope it took before. The two newly refused shapes — an envelope naming a foreign dialect, and a blank string — were measured against every author value in this repo, the examples, the docs, the skills and the objectui pin (32 cron and 14 template values; #15035 census comment 5552934813): zero real authors write either, so the ledger has nothing to rewrite and this changeset carries no rewrite instruction. The remedy is authoring intent: declare the slot's own dialect, or write the bare string.