diff --git a/src/AcDream.Plugins.MossTank/BuffPlan.cs b/src/AcDream.Plugins.MossTank/BuffPlan.cs
index 8e35fe7d4..4b223c281 100644
--- a/src/AcDream.Plugins.MossTank/BuffPlan.cs
+++ b/src/AcDream.Plugins.MossTank/BuffPlan.cs
@@ -93,9 +93,9 @@ public sealed class BuffSettings
     /// SelfBuffChoiceView-style picker) but does NOT wire this set into
     /// <see cref="BuffPlan.Build"/>'s cast selection — resolving an
     /// exemplar name to a real castable line/tier is genuine casting-
-    /// algorithm behavior, out of this UI-parity slice's scope (tracked as
-    /// a real, accepted gap in the slice 7 plan ledger, owned by a future
-    /// Campaign VT behavior slice).
+    /// algorithm behavior, out of this UI-parity slice's scope. Tracked as
+    /// issue #491 ("shown and persisted, not consumed by BuffPlan.Build
+    /// until slice 4"), owned by a future Campaign VT behavior slice.
     /// </summary>
     public ISet<string> ExtraBuffSpellNames { get; } =
         new HashSet<string>(StringComparer.Ordinal);
@@ -104,7 +104,7 @@ public sealed class BuffSettings
     /// VTank's AntiExtraBuffSpells table (defaultsettings.usd:1-6) — named
     /// buff families to never cast even if the school-driven rules above
     /// would otherwise want them. Same storage-only scope note as
-    /// <see cref="ExtraBuffSpellNames"/>.
+    /// <see cref="ExtraBuffSpellNames"/> — issue #491.
     /// </summary>
     public ISet<string> BlacklistedBuffFamilyNames { get; } =
         new HashSet<string>(StringComparer.Ordinal);
diff --git a/src/AcDream.Plugins.MossTank/mosstank.xml b/src/AcDream.Plugins.MossTank/mosstank.xml
index 431d5051b..81702a9a6 100644
--- a/src/AcDream.Plugins.MossTank/mosstank.xml
+++ b/src/AcDream.Plugins.MossTank/mosstank.xml
@@ -510,20 +510,20 @@
   <group x="8" y="42" w="848" h="194" visible="{BuffsVisible}">
     <!-- Fix round B item 14 (owner honesty rule): BuffPlan.Build does not
          read this set at all yet — a real, tracked wiring gap (see
-         BuffSettings.ExtraBuffSpellNames' own doc comment), not a display
-         bug. The tooltip says so instead of implying these names already
-         affect what gets cast. -->
+         BuffSettings.ExtraBuffSpellNames' own doc comment; issue #491),
+         not a display bug. The tooltip says so instead of implying these
+         names already affect what gets cast. -->
     <label x="4" y="0" w="320" h="16" text="Extra Buff Spells" color="#FFE8DEC3"
-           tooltip="Named spell exemplars — stored and shown here, not yet used when choosing what to cast." />
+           tooltip="Named spell exemplars — stored and shown here, not yet used when choosing what to cast (#491)." />
     <list x="4" y="18" w="320" h="116" rowheight="17"
           items="{ExtraBuffRows}" selected="{SelectedExtraBuffIndex}"
           onchange="{DeleteExtraBuffAt}" tooltip="Click a row to remove it." />
     <button x="4" y="138" w="120" h="18" text="Add..." onclick="{ShowExtraBuffPicker}" />
 
     <!-- Fix round B item 14: same honesty note as Extra Buff Spells — not
-         yet read by BuffPlan.Build. -->
+         yet read by BuffPlan.Build (issue #491). -->
     <label x="524" y="0" w="320" h="16" text="Blacklisted Buff Families" color="#FFE8DEC3"
-           tooltip="Named buff families — stored and shown here, not yet used when choosing what to cast." />
+           tooltip="Named buff families — stored and shown here, not yet used when choosing what to cast (#491)." />
     <list x="524" y="18" w="320" h="116" rowheight="17"
           items="{BlacklistedBuffFamilyRows}" selected="{SelectedBlacklistedBuffIndex}"
           onchange="{DeleteBlacklistedBuffFamilyAt}" tooltip="Click a row to remove it." />