Before it subscribes, mesh_wait checks each name's emitter against the catalog
half the tool runner holds (its seats' definitions and its modules' entries),
refusing one neither knows and naming the half and its revisions; a known
emitter's undeclared event is waited on and its timed-out answer says so; while
the half is not yet read the answer says the names were unchecked. The first
views answer the halves by branch for it.
Builds: design 34 every-event §14, §19 (rows of the table of refusals)
Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h