diff --git a/.voidbot/state/aetheria.cc b/.voidbot/state/aetheria.cc
index 5e0aad0cd..7303dcc66 100644
Binary files a/.voidbot/state/aetheria.cc and b/.voidbot/state/aetheria.cc differ
diff --git a/Aetheria.State/README.md b/Aetheria.State/README.md
index 283729998..83a305544 100644
--- a/Aetheria.State/README.md
+++ b/Aetheria.State/README.md
@@ -179,6 +179,9 @@ identity owners or a public behavior API. Stat modifiers ask live behavior
 instances for target stats instead of reading behavior config objects directly;
 base `Behavior` captures a runtime stat table at construction and no longer
 retains the config object for later reflection.
+Heat, EnergyDraw, and Cooldown behavior instances now copy their constructor
+stat/scalar inputs into explicit runtime fields and no longer retain their
+config subclasses after construction.
 `ItemManager` currently owns the explicit typed-payload-to-config bridge.
 Typed name-file documents are `aetheria.name_file.v2` records. They carry the
 legacy ID, display name, count, compact sample names for surfaces, and the full
diff --git a/Assets/Scripts/ServerShared/Behaviors/Cooldown.cs b/Assets/Scripts/ServerShared/Behaviors/Cooldown.cs
index 0b7ca6650..01fff3370 100644
--- a/Assets/Scripts/ServerShared/Behaviors/Cooldown.cs
+++ b/Assets/Scripts/ServerShared/Behaviors/Cooldown.cs
@@ -26,7 +26,7 @@ public class CooldownConfig : RuntimeBehaviorConfig
 
 public class Cooldown : Behavior, IAlwaysUpdatedBehavior, IProgressBehavior
 {
-    private CooldownConfig _data;
+    private readonly PerformanceStat _cooldownDuration;
 
     private float _cooldown; // Normalized
 
@@ -34,12 +34,12 @@ public class Cooldown : Behavior, IAlwaysUpdatedBehavior, IProgressBehavior
 
     public Cooldown(CooldownConfig data, EquippedItem item) : base(data, item)
     {
-        _data = data;
+        _cooldownDuration = data.Cooldown;
     }
 
     public Cooldown(CooldownConfig data, ConsumableItemEffect item) : base(data, item)
     {
-        _data = data;
+        _cooldownDuration = data.Cooldown;
     }
 
     public override bool Execute(float dt)
@@ -55,6 +55,6 @@ public class Cooldown : Behavior, IAlwaysUpdatedBehavior, IProgressBehavior
 
     public void Update(float delta)
     {
-        _cooldown -= delta / Evaluate(_data.Cooldown);
+        _cooldown -= delta / Evaluate(_cooldownDuration);
     }
-}
\ No newline at end of file
+}
diff --git a/Assets/Scripts/ServerShared/Behaviors/EnergyDraw.cs b/Assets/Scripts/ServerShared/Behaviors/EnergyDraw.cs
index cbd9c7370..ec4248538 100644
--- a/Assets/Scripts/ServerShared/Behaviors/EnergyDraw.cs
+++ b/Assets/Scripts/ServerShared/Behaviors/EnergyDraw.cs
@@ -26,20 +26,23 @@ public class EnergyDrawConfig : RuntimeBehaviorConfig
 
 public class EnergyDraw : Behavior
 {
-    private EnergyDrawConfig _data;
+    private readonly PerformanceStat _energyDraw;
+    private readonly bool _perSecond;
 
     public EnergyDraw(EnergyDrawConfig data, EquippedItem item) : base(data, item)
     {
-        _data = data;
+        _energyDraw = data.EnergyDraw;
+        _perSecond = data.PerSecond;
     }
 
     public EnergyDraw(EnergyDrawConfig data, ConsumableItemEffect item) : base(data, item)
     {
-        _data = data;
+        _energyDraw = data.EnergyDraw;
+        _perSecond = data.PerSecond;
     }
 
     public override bool Execute(float dt)
     {
-        return Entity.TryConsumeEnergy(Evaluate(_data.EnergyDraw) * (_data.PerSecond ? dt : 1));
+        return Entity.TryConsumeEnergy(Evaluate(_energyDraw) * (_perSecond ? dt : 1));
     }
-}
\ No newline at end of file
+}
diff --git a/Assets/Scripts/ServerShared/Behaviors/Heat.cs b/Assets/Scripts/ServerShared/Behaviors/Heat.cs
index 0a9f47cf7..d275ec58f 100644
--- a/Assets/Scripts/ServerShared/Behaviors/Heat.cs
+++ b/Assets/Scripts/ServerShared/Behaviors/Heat.cs
@@ -26,21 +26,24 @@ public class HeatConfig : RuntimeBehaviorConfig
 
 public class Heat : Behavior
 {
-    private HeatConfig _data;
+    private readonly PerformanceStat _heat;
+    private readonly bool _perSecond;
 
     public Heat(HeatConfig data, EquippedItem item) : base(data, item)
     {
-        _data = data;
+        _heat = data.Heat;
+        _perSecond = data.PerSecond;
     }
     public Heat(HeatConfig data, ConsumableItemEffect item) : base(data, item)
     {
-        _data = data;
+        _heat = data.Heat;
+        _perSecond = data.PerSecond;
     }
 
     public override bool Execute(float dt)
     {
-        AddHeat(Evaluate(_data.Heat) * (_data.PerSecond ? dt : 1));
+        AddHeat(Evaluate(_heat) * (_perSecond ? dt : 1));
 
         return true;
     }
-}
\ No newline at end of file
+}
diff --git a/docs/aetheria-perfect-machine-map.md b/docs/aetheria-perfect-machine-map.md
index 255d6d2a5..b401805a3 100644
--- a/docs/aetheria-perfect-machine-map.md
+++ b/docs/aetheria-perfect-machine-map.md
@@ -304,6 +304,9 @@ legacy catalog cache, and legacy UI paths should be migration-only or deleted.
   not have to reselect behavior identity from the old class graph.
   Base `Behavior` now captures a runtime performance-stat table during
   construction and no longer retains the config object for later stat lookup.
+  Heat, EnergyDraw, and Cooldown behavior instances now copy constructor
+  stat/scalar inputs into explicit runtime fields and no longer retain their
+  config subclasses after construction.
   `StatModifier` behavior requirements and behavior-stat targets compare typed
   behavior kinds on the live equipped behavior instances through
   `AetheriaRuntimeBehaviorMetadataCatalog` instead of scanning config