ADR-0087 exemption (already-registered): This amends the EXISTING semantic entry rather than adding one: same authorable key, same deployment switch, same surface, and the entry predates this diff at the merge base. Nothing is renamed, retired or re-typed — the start node's `config` is an open record (ADR-0018), so every flow that parses today parses byte-identically afterwards and `objectstack migrate meta` has nothing new to rewrite. What moves is the BIND-time accept set (it WIDENS) and the RUN-time organization such a flow's writes carry; the entry's own surface/replacement/reason/acceptanceCriteria each gained their `group` row in this diff.