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 be20ac91..dce7c049 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
@@ -471,3 +471,6 @@ names the principle that settles it, and is cited as "design 47 G A-n".
   `entry-not-found` itself through its own writer (kind added, scope `module`, id the fingerprint, escaped). The seat
   `mesh-recovery`'s `ended` and `restored` events gain `why` (the hand act's words for a cancel), regenerated, which the
   recovery module fills and the node-engine's hold says.
+- **A-118** (A-77, A-101, §167's checker that goes with G; principle 7) The shared `Asker` takes optional bound keys;
+  the builder arms them in its `bounds` state. The checker, which the runner replaces and which goes after G, keeps its
+  step bound as today and gains no `bounds` state.