Answer stability round 4: the decision's title backs the loop guarantee alone, item 66 filed

docs/decisions.md

@@ -563,15 +563,14 @@ format, as its parser does. A list giving way to the directive form refuses at z
 than walking again; counting every list twice halved the list limit, counting the directive form
 once doubled the parser's frames per level.
 
-## The guards take what `JSON.parse` or `structuredClone` builds
+## No value `JSON.parse` or `structuredClone` builds loops a call
 
-2026-10-04, the maintainer. Goal 1. Valid while every persona hands in a value `JSON.parse`,
-`structuredClone` or an object literal builds.
+2026-10-04, the maintainer. Goals 1 and 8. Valid while every persona hands in plain data, as
+`JSON.parse` or `structuredClone` builds it.
 
-The guarantees speak of plain data: own enumerable keys and plain arrays, cycles and shared objects
-included. The guards walk it by `Object.values` and refuse a cycle. An inherited or non-enumerable
-key, a getter, a Proxy or a custom iterator is the caller's to rule out: no persona builds one, and
-each guarded shape asked for another.
+The guards walk a value by `Object.values` and refuse a cycle in it. An inherited or non-enumerable
+key, a getter, a Proxy or a custom iterator is the caller's to rule out: no persona builds one.
+Goal 8's size counts ADF as JSON, so a shared object costs once per place it is held.
 
 ## Nothing spreads an unbounded array