diff --git a/server/NeonSprawl.Server.Tests/Game/Contracts/ContractTemplateCatalogLoaderTests.cs b/server/NeonSprawl.Server.Tests/Game/Contracts/ContractTemplateCatalogLoaderTests.cs
index 7153d3b..7eef3cd 100644
--- a/server/NeonSprawl.Server.Tests/Game/Contracts/ContractTemplateCatalogLoaderTests.cs
+++ b/server/NeonSprawl.Server.Tests/Game/Contracts/ContractTemplateCatalogLoaderTests.cs
@@ -155,7 +155,7 @@ public class ContractTemplateCatalogLoaderTests
     {
         // Arrange
         var (_, contractsDir, schemaPath) = CreateTempContentLayout();
-        var emptyCatalog = """{"schemaVersion": 1, "contractTemplates": []}""";
+        const string emptyCatalog = """{"schemaVersion": 1, "contractTemplates": []}""";
         File.WriteAllText(Path.Combine(contractsDir, "prototype_contract_templates.json"), emptyCatalog, Encoding.UTF8);
         // Act
         var ex = Record.Exception(() => LoadCatalog(contractsDir, schemaPath));
diff --git a/server/NeonSprawl.Server/Game/Contracts/ContractTemplateCatalog.cs b/server/NeonSprawl.Server/Game/Contracts/ContractTemplateCatalog.cs
index fdbc861..c89df35 100644
--- a/server/NeonSprawl.Server/Game/Contracts/ContractTemplateCatalog.cs
+++ b/server/NeonSprawl.Server/Game/Contracts/ContractTemplateCatalog.cs
@@ -3,25 +3,19 @@ using System.Collections.ObjectModel;
 namespace NeonSprawl.Server.Game.Contracts;
 
 /// <summary>In-memory contract template catalog loaded at startup (NEO-145). Game code should prefer <see cref="IContractTemplateRegistry"/> for lookups.</summary>
-public sealed class ContractTemplateCatalog
+public sealed class ContractTemplateCatalog(
+    string contractsDirectory,
+    IReadOnlyDictionary<string, ContractTemplateRow> byId,
+    int catalogJsonFileCount)
 {
-    public ContractTemplateCatalog(
-        string contractsDirectory,
-        IReadOnlyDictionary<string, ContractTemplateRow> byId,
-        int catalogJsonFileCount)
-    {
-        ContractsDirectory = contractsDirectory;
-        ById = new ReadOnlyDictionary<string, ContractTemplateRow>(new Dictionary<string, ContractTemplateRow>(byId, StringComparer.Ordinal));
-        CatalogJsonFileCount = catalogJsonFileCount;
-    }
-
     /// <summary>Absolute path to the directory that was enumerated for <c>*_contract_templates.json</c> catalogs.</summary>
-    public string ContractsDirectory { get; }
+    public string ContractsDirectory { get; } = contractsDirectory;
 
-    public IReadOnlyDictionary<string, ContractTemplateRow> ById { get; }
+    public IReadOnlyDictionary<string, ContractTemplateRow> ById { get; } =
+        new ReadOnlyDictionary<string, ContractTemplateRow>(new Dictionary<string, ContractTemplateRow>(byId, StringComparer.Ordinal));
 
     public int DistinctTemplateCount => ById.Count;
 
     /// <summary>Number of <c>*_contract_templates.json</c> files under <see cref="ContractsDirectory"/>.</summary>
-    public int CatalogJsonFileCount { get; }
+    public int CatalogJsonFileCount { get; } = catalogJsonFileCount;
 }
diff --git a/server/NeonSprawl.Server/Game/Contracts/ContractTemplateCatalogLoader.cs b/server/NeonSprawl.Server/Game/Contracts/ContractTemplateCatalogLoader.cs
index 52126e8..e04c072 100644
--- a/server/NeonSprawl.Server/Game/Contracts/ContractTemplateCatalogLoader.cs
+++ b/server/NeonSprawl.Server/Game/Contracts/ContractTemplateCatalogLoader.cs
@@ -233,7 +233,7 @@ public static class ContractTemplateCatalogLoader
         return new QuestRewardBundleRow(itemGrants, skillXpGrants, reputationGrants);
     }
 
-    private static IReadOnlyList<ReputationGrantRow> ParseReputationGrantRows(JsonArray? array)
+    private static List<ReputationGrantRow> ParseReputationGrantRows(JsonArray? array)
     {
         if (array is null || array.Count == 0)
             return [];
@@ -252,7 +252,7 @@ public static class ContractTemplateCatalogLoader
         return rows;
     }
 
-    private static IReadOnlyList<RewardGrantRow> ParseItemGrantRows(JsonArray? array)
+    private static List<RewardGrantRow> ParseItemGrantRows(JsonArray? array)
     {
         if (array is null || array.Count == 0)
             return [];
@@ -271,7 +271,7 @@ public static class ContractTemplateCatalogLoader
         return rows;
     }
 
-    private static IReadOnlyList<QuestSkillXpGrantRow> ParseSkillXpGrantRows(JsonArray? array)
+    private static List<QuestSkillXpGrantRow> ParseSkillXpGrantRows(JsonArray? array)
     {
         if (array is null || array.Count == 0)
             return [];
diff --git a/server/NeonSprawl.Server/Game/Contracts/PrototypeE7M4ContractCatalogRules.cs b/server/NeonSprawl.Server/Game/Contracts/PrototypeE7M4ContractCatalogRules.cs
index a0cb3f7..1614f42 100644
--- a/server/NeonSprawl.Server/Game/Contracts/PrototypeE7M4ContractCatalogRules.cs
+++ b/server/NeonSprawl.Server/Game/Contracts/PrototypeE7M4ContractCatalogRules.cs
@@ -237,18 +237,9 @@ public static class PrototypeE7M4ContractCatalogRules
 
     private static NormalizedBundle NormalizeBundle(QuestRewardBundleRow bundle) =>
         new(
-            bundle.ItemGrants
-                .OrderBy(g => g.ItemId, StringComparer.Ordinal)
-                .ThenBy(g => g.Quantity)
-                .ToArray(),
-            bundle.SkillXpGrants
-                .OrderBy(g => g.SkillId, StringComparer.Ordinal)
-                .ThenBy(g => g.Amount)
-                .ToArray(),
-            bundle.ReputationGrants
-                .OrderBy(g => g.FactionId, StringComparer.Ordinal)
-                .ThenBy(g => g.Amount)
-                .ToArray());
+            [.. bundle.ItemGrants.OrderBy(g => g.ItemId, StringComparer.Ordinal).ThenBy(g => g.Quantity)],
+            [.. bundle.SkillXpGrants.OrderBy(g => g.SkillId, StringComparer.Ordinal).ThenBy(g => g.Amount)],
+            [.. bundle.ReputationGrants.OrderBy(g => g.FactionId, StringComparer.Ordinal).ThenBy(g => g.Amount)]);
 
     private static bool BundlesEqual(NormalizedBundle left, NormalizedBundle right)
     {