diff --git a/.claude/settings.local.json b/.claude/settings.local.json
index 278535fa..76a90611 100644
--- a/.claude/settings.local.json
+++ b/.claude/settings.local.json
@@ -3,7 +3,10 @@
     "allow": [
       "Bash(dir:*)",
       "Bash(dotnet list:*)",
-      "Bash(find:*)"
+      "Bash(find:*)",
+      "Bash(grep:*)",
+      "Bash(dotnet test:*)",
+      "Bash(dotnet build:*)"
     ]
   }
 }
diff --git a/FruitBank.Common/Dtos/OrderDto.cs b/FruitBank.Common/Dtos/OrderDto.cs
index 1edbb7c3..7b523ea6 100644
--- a/FruitBank.Common/Dtos/OrderDto.cs
+++ b/FruitBank.Common/Dtos/OrderDto.cs
@@ -35,6 +35,7 @@ public class OrderDto : MgOrderDto<OrderItemDto, ProductDto>, IOrderDto
     public List<GenericAttributeDto> GenericAttributes { get; set; }
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => Id > 0 && OrderItemDtos.Count > 0 && OrderItemDtos.All(x => x.IsMeasured)", Constraints = "[#SmartTypeConstraints], readonly")]
     public bool IsMeasured
     {
         get => IsMeasuredAndValid();
@@ -42,6 +43,7 @@ public class OrderDto : MgOrderDto<OrderItemDto, ProductDto>, IOrderDto
     }
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => OrderItemDtos.Any(oi => oi.IsMeasurable)", Constraints = "[#SmartTypeConstraints], readonly")]
     public bool IsMeasurable
     {
         get => OrderItemDtos.Any(oi => oi.IsMeasurable);
@@ -69,18 +71,23 @@ public class OrderDto : MgOrderDto<OrderItemDto, ProductDto>, IOrderDto
     public DateTime DateOfReceiptOrCreated => DateOfReceipt ?? CreatedOnUtc;
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => GenericAttributes.GetValueOrNull<DateTime>(nameof(IOrderDto.DateOfReceipt))")]
     public DateTime? DateOfReceipt => GenericAttributes.GetValueOrNull<DateTime>(nameof(IOrderDto.DateOfReceipt));
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => GenericAttributes.GetValueOrDefault(nameof(IOrderDto.RevisorId), 0)")]
     public int RevisorId => GenericAttributes.GetValueOrDefault(nameof(IOrderDto.RevisorId), 0);
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => GenericAttributes.GetValueOrDefault(nameof(IOrderDto.MeasurementOwnerId), 0)")]
     public int MeasurementOwnerId => GenericAttributes.GetValueOrDefault(nameof(IOrderDto.MeasurementOwnerId), 0);
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => OrderItemDtos.Count > 0 && OrderItemDtos.All(oi => oi.IsAudited)")]
     public bool IsAllOrderItemAudited => OrderItemDtos.Count > 0 && OrderItemDtos.All(oi => oi.IsAudited);
     
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => OrderItemDtos.All(oi => oi.AverageWeightIsValid)")]
     public bool IsAllOrderItemAvgWeightValid => OrderItemDtos.All(oi => oi.AverageWeightIsValid);
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
@@ -105,6 +112,7 @@ public class OrderDto : MgOrderDto<OrderItemDto, ProductDto>, IOrderDto
     { }
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => OrderStatus == OrderStatus.Complete")]
     public bool IsComplete => OrderStatus == OrderStatus.Complete;
 
     public bool HasMeasuringAccess(int? customerId, bool isRevisorUser = false)
diff --git a/FruitBank.Common/Dtos/OrderItemDto.cs b/FruitBank.Common/Dtos/OrderItemDto.cs
index f9db3545..c26e3f58 100644
--- a/FruitBank.Common/Dtos/OrderItemDto.cs
+++ b/FruitBank.Common/Dtos/OrderItemDto.cs
@@ -42,6 +42,7 @@ public class OrderItemDto : MgOrderItemDto<ProductDto>, IOrderItemDto
     }
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => ProductDto!.IsMeasurable", Constraints = "[#SmartTypeConstraints], readonly")]
     public bool IsMeasurable
     {
         get => ProductDto!.IsMeasurable;
@@ -49,6 +50,7 @@ public class OrderItemDto : MgOrderItemDto<ProductDto>, IOrderItemDto
     }
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => OrderItemPallets.Sum(x => x.TrayQuantity)", Constraints = "[#SmartTypeConstraints], readonly")]
     public int TrayQuantity
     {
         get => OrderItemPallets.Sum(x => x.TrayQuantity);
@@ -56,6 +58,7 @@ public class OrderItemDto : MgOrderItemDto<ProductDto>, IOrderItemDto
     }
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => double.Round(OrderItemPallets.Sum(x => x.NetWeight), 1)", Constraints = "[#SmartTypeConstraints], readonly")]
     public double NetWeight
     {
         get
@@ -73,6 +76,7 @@ public class OrderItemDto : MgOrderItemDto<ProductDto>, IOrderItemDto
     }
 
     [NotColumn, NotMapped, JsonIgnore, System.Text.Json.Serialization.JsonIgnore]
+    [ToonDescription(BusinessRule = "get => double.Round(OrderItemPallets.Sum(x => x.NetWeight), 1)", Constraints = "[#SmartTypeConstraints], readonly")]
     public double GrossWeight
     {
         get
diff --git a/test_toon_businessrule.csx b/test_toon_businessrule.csx
new file mode 100644
index 00000000..d316fd6c
--- /dev/null
+++ b/test_toon_businessrule.csx
@@ -0,0 +1,28 @@
+#!/usr/bin/env dotnet-script
+
+#r "H:/Applications/Mango/Source/FruitBankHybridApp/FruitBank.Common/bin/Debug/net9.0/FruitBank.Common.dll"
+#r "H:/Applications/Aycode/Source/AyCode.Core/AyCode.Core/bin/FruitBank/Debug/net9.0/AyCode.Core.dll"
+
+using AyCode.Core.Serializers.Toons;
+using FruitBank.Common.Dtos;
+
+var toon = AcToonSerializer.SerializeTypeMetadata<OrderDto>();
+Console.WriteLine(toon);
+
+// Search for IsMeasurable property output
+if (toon.Contains("business-logic:"))
+{
+    Console.WriteLine("\n✓ SUCCESS: business-logic attribute found!");
+    var lines = toon.Split('\n');
+    foreach (var line in lines)
+    {
+        if (line.Contains("IsMeasurable") || line.Contains("business-logic:"))
+        {
+            Console.WriteLine(line);
+        }
+    }
+}
+else
+{
+    Console.WriteLine("\n✗ FAIL: business-logic attribute NOT found!");
+}