diff --git a/docs/superpowers/plans/2026-07-16-context-compaction-overhaul.md b/docs/superpowers/plans/2026-07-16-context-compaction-overhaul.md
index b358f10..d3474a8 100644
--- a/docs/superpowers/plans/2026-07-16-context-compaction-overhaul.md
+++ b/docs/superpowers/plans/2026-07-16-context-compaction-overhaul.md
@@ -647,9 +647,16 @@ mod tests {
 
     #[test]
     fn json_array_elements_past_third_are_squashed_harder() {
-        let long_str = "the quick brown fox jumps over the lazy dog again and again ".repeat(8);
+        // A UUID-shaped value has no internal whitespace and clears the
+        // entropy threshold, so under the *normal* per-value rule (which
+        // still applies to array indices 0-2) it survives untouched.
+        // Padding elsewhere in the object pushes total size over the
+        // squash floor without affecting which array elements get kept.
+        let identifier = "550e8400-e29b-41d4-a716-446655440000";
+        let padding = "padding text to push this payload past the squash floor so apply() actually dispatches to squash_json ".repeat(20);
         let value = serde_json::json!({
-            "items": [long_str.clone(), long_str.clone(), long_str.clone(), long_str.clone()],
+            "padding": padding,
+            "items": [identifier, identifier, identifier, identifier],
         });
         let text = serde_json::to_string(&value).unwrap();
         assert!(text.len() > SQUASH_FLOOR_BYTES);
@@ -658,8 +665,9 @@ mod tests {
         let parsed: serde_json::Value = serde_json::from_str(&result).unwrap();
         let items = parsed["items"].as_array().unwrap();
 
-        assert_eq!(items[0].as_str().unwrap(), long_str, "first 3 elements keep long values as-is (not high-entropy but under the array cutoff)");
-        assert_ne!(items[3].as_str().unwrap(), long_str, "4th element must be elided regardless of content");
+        assert_eq!(items[0].as_str().unwrap(), identifier, "index 0 is under the array cutoff and identifier-shaped, so it's kept under the normal rule");
+        assert_eq!(items[2].as_str().unwrap(), identifier, "index 2 is still under the cutoff (past-third means index >= 3)");
+        assert_ne!(items[3].as_str().unwrap(), identifier, "index 3 must be force-elided even though it's identifier-shaped and would survive at any earlier index");
     }
 
     #[test]