diff --git a/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md b/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
index f9cc84c2..059f0401 100644
--- a/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
+++ b/03-DESIGN/01-to-be/47-milestones/G-22-lead-answers-2.md
@@ -292,3 +292,6 @@ the principle that settles it, cited as "design 47 G A-n".
   `output-object`, the name of an object the build seat keeps, read through the seat's verb `output` answered in
   chunks. Every build seat (`node-build-go`, `node-build-image`, `node-build-node`) says it the same way, from the
   shared step runner; no asker reads the seat's step state.
+- **A-255** (§677, A-77, A-244; principles 1, 7 and 8) The header is `x-wait: held`. A process holder's
+  `gate-unanswered` is a bound key with its time to live in the `approvals` state, as the tool runner's `bound` is,
+  never a clock wait. A process holder's act names no node, so two instances of the holder raise one ask.