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 059f0401..7e426343 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
@@ -295,3 +295,5 @@ the principle that settles it, cited as "design 47 G A-n".
 - **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.
+- **A-256** (corrects A-251's separator; principle 8) The finding's id is the owner, repository and branch joined by
+  `/` and escaped as one key name (`keys.EscapeName`); a key holds no `~`.