diff --git a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
index 9eb787df..e06812b7 100644
--- a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
+++ b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
@@ -302,3 +302,8 @@ names the principle that settles it, and is cited as "design 47 G A-n".
   assigner's `placement` (A-62), and each node's last `running` from the node-engine's stream read whole at start
   (§556); (d) an `inputs` entry is also keyed by its run ask's id, so the build seat's `step-ended` of that ask finds
   and deletes it.
+- **A-79** (§558, §614, §684, §196, §444; principle 7) As built in mesh-delivery 6d483af2: the gate's `source` is named
+  in the short `invokes` form (the manifest's `invokes` is a list of names); the catalog half's rows go into the part's
+  existing `grants_first_views`; while the catalog half is unread the part keeps what the bus loaded and only adds,
+  which is §684's way past the cycle, so no registered branch holds nothing. The part's remaining reads of the
+  indexer's `manifests`, `modules` and `verdicts` go too (§196): the catalog half answers them.