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 6c4c1ab6..db84c24c 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
@@ -344,3 +344,6 @@ names the principle that settles it, and is cited as "design 47 G A-n".
   read by the tools bundle following the catalog half itself, as A-70 has it for `reserved`.
 - **A-88** (§610, the main file's item 85; principle 7) mesh-networking's A-N1 (callers named in its seven seat
   definitions) is not brought in: from G no verb names its callers (§610), which supersedes item 85's reading.
+- **A-89** (§37, §700, A-74; principle 7, one way for every asker) The runner reads its approval ask's warrant from the
+  router's record of its ask, through the seat `operator-channel` as A-74 has it, never from the decided event's body;
+  the decided event only wakes it.