diff --git a/crates/cli/tests/snapshots/codegen__codegen_csharp.snap b/crates/cli/tests/snapshots/codegen__codegen_csharp.snap
index 959739efad8..53d35834fd1 100644
--- a/crates/cli/tests/snapshots/codegen__codegen_csharp.snap
+++ b/crates/cli/tests/snapshots/codegen__codegen_csharp.snap
@@ -16,7 +16,7 @@ namespace SpacetimeDB
 	[SpacetimeDB.Type]
 	public partial class AddPlayer : IReducerArgs
 	{
-		string IReducerArgs.ReducerName => "add_player";
+		uint IReducerArgs.ReducerIndex => 2;
 
 		public string Name = "";
 	}
@@ -36,7 +36,7 @@ namespace SpacetimeDB
 	[SpacetimeDB.Type]
 	public partial class AddPrivate : IReducerArgs
 	{
-		string IReducerArgs.ReducerName => "add_private";
+		uint IReducerArgs.ReducerIndex => 3;
 
 		public string Name = "";
 	}
@@ -91,7 +91,7 @@ namespace SpacetimeDB
 	[SpacetimeDB.Type]
 	public partial class DeletePlayer : IReducerArgs
 	{
-		string IReducerArgs.ReducerName => "delete_player";
+		uint IReducerArgs.ReducerIndex => 4;
 
 		public ulong Id;
 	}
@@ -111,7 +111,7 @@ namespace SpacetimeDB
 	[SpacetimeDB.Type]
 	public partial class DeletePlayersByName : IReducerArgs
 	{
-		string IReducerArgs.ReducerName => "delete_players_by_name";
+		uint IReducerArgs.ReducerIndex => 5;
 
 		public string Name = "";
 	}
@@ -176,6 +176,42 @@ namespace SpacetimeDB
 	}
 }
 '''
+"IdentityConnectedReducer.cs" = '''
+// THIS FILE IS AUTOMATICALLY GENERATED BY SPACETIMEDB. EDITS TO THIS FILE
+// WILL NOT BE SAVED. MODIFY TABLES IN RUST INSTEAD.
+// <auto-generated />
+
+#nullable enable
+
+using System;
+
+namespace SpacetimeDB
+{
+	[SpacetimeDB.Type]
+	public partial class IdentityConnected : IReducerArgs
+	{
+		uint IReducerArgs.ReducerIndex => 0;
+	}
+}
+'''
+"InitReducer.cs" = '''
+// THIS FILE IS AUTOMATICALLY GENERATED BY SPACETIMEDB. EDITS TO THIS FILE
+// WILL NOT BE SAVED. MODIFY TABLES IN RUST INSTEAD.
+// <auto-generated />
+
+#nullable enable
+
+using System;
+
+namespace SpacetimeDB
+{
+	[SpacetimeDB.Type]
+	public partial class Init : IReducerArgs
+	{
+		uint IReducerArgs.ReducerIndex => 1;
+	}
+}
+'''
 "NamespaceTestC.cs" = '''
 // THIS FILE IS AUTOMATICALLY GENERATED BY SPACETIMEDB. EDITS TO THIS FILE
 // WILL NOT BE SAVED. MODIFY TABLES IN RUST INSTEAD.
@@ -351,7 +387,7 @@ namespace SpacetimeDB
 	[SpacetimeDB.Type]
 	public partial class QueryPrivate : IReducerArgs
 	{
-		string IReducerArgs.ReducerName => "query_private";
+		uint IReducerArgs.ReducerIndex => 6;
 	}
 }
 '''
@@ -412,7 +448,7 @@ namespace SpacetimeDB
 	[SpacetimeDB.Type]
 	public partial class RepeatingTest : IReducerArgs
 	{
-		string IReducerArgs.ReducerName => "repeating_test";
+		uint IReducerArgs.ReducerIndex => 7;
 
 		public SpacetimeDB.RepeatingTestArg Arg = new();
 	}
@@ -510,7 +546,7 @@ namespace SpacetimeDB
 	[SpacetimeDB.Type]
 	public partial class TestBtreeIndexArgs : IReducerArgs
 	{
-		string IReducerArgs.ReducerName => "test_btree_index_args";
+		uint IReducerArgs.ReducerIndex => 9;
 	}
 }
 '''
@@ -636,7 +672,7 @@ namespace SpacetimeDB
 	[SpacetimeDB.Type]
 	public partial class Test : IReducerArgs
 	{
-		string IReducerArgs.ReducerName => "test";
+		uint IReducerArgs.ReducerIndex => 8;
 
 		public SpacetimeDB.TestA Arg = new();
 		public SpacetimeDB.TestB Arg2 = new();
@@ -882,6 +918,38 @@ namespace SpacetimeDB
 	{
 		internal RemoteReducers(DbConnection conn, SetReducerFlags SetReducerFlags) : base(conn) { this.SetCallReducerFlags = SetReducerFlags; }
 		internal readonly SetReducerFlags SetCallReducerFlags;
+		public delegate void IdentityConnectedHandler(EventContext ctx);
+		public event IdentityConnectedHandler? OnIdentityConnected;
+
+		public void IdentityConnected()
+		{
+			conn.InternalCallReducer(new IdentityConnected {  }, this.SetCallReducerFlags.IdentityConnectedFlags);
+		}
+
+		public bool InvokeIdentityConnected(EventContext ctx, IdentityConnected args)
+		{
+			if (OnIdentityConnected == null) return false;
+			OnIdentityConnected(
+				ctx
+			);
+			return true;
+		}
+		public delegate void InitHandler(EventContext ctx);
+		public event InitHandler? OnInit;
+
+		public void Init()
+		{
+			conn.InternalCallReducer(new Init {  }, this.SetCallReducerFlags.InitFlags);
+		}
+
+		public bool InvokeInit(EventContext ctx, Init args)
+		{
+			if (OnInit == null) return false;
+			OnInit(
+				ctx
+			);
+			return true;
+		}
 		public delegate void AddPlayerHandler(EventContext ctx, string name);
 		public event AddPlayerHandler? OnAddPlayer;
 
@@ -1024,6 +1092,10 @@ namespace SpacetimeDB
 	public sealed class SetReducerFlags
 	{
 		internal SetReducerFlags() { }
+		internal CallReducerFlags IdentityConnectedFlags;
+		public void IdentityConnected(CallReducerFlags flags) { this.IdentityConnectedFlags = flags; }
+		internal CallReducerFlags InitFlags;
+		public void Init(CallReducerFlags flags) { this.InitFlags = flags; }
 		internal CallReducerFlags AddPlayerFlags;
 		public void AddPlayer(CallReducerFlags flags) { this.AddPlayerFlags = flags; }
 		internal CallReducerFlags AddPrivateFlags;
@@ -1058,6 +1130,8 @@ namespace SpacetimeDB
 
 	[Type]
 	public partial record Reducer : TaggedEnum<(
+		IdentityConnected IdentityConnected,
+		Init Init,
 		AddPlayer AddPlayer,
 		AddPrivate AddPrivate,
 		DeletePlayer DeletePlayer,
@@ -1066,9 +1140,7 @@ namespace SpacetimeDB
 		RepeatingTest RepeatingTest,
 		Test Test,
 		TestBtreeIndexArgs TestBtreeIndexArgs,
-		Unit StdbNone,
-		Unit StdbIdentityConnected,
-		Unit StdbIdentityDisconnected
+		Unit StdbNone
 	)>;
 	public class DbConnection : DbConnectionBase<DbConnection, Reducer>
 	{
@@ -1081,33 +1153,32 @@ namespace SpacetimeDB
 			SetReducerFlags = new();
 			Reducers = new(this, this.SetReducerFlags);
 
-			clientDB.AddTable<HasSpecialStuff>("has_special_stuff", Db.HasSpecialStuff);
-			clientDB.AddTable<PkMultiIdentity>("pk_multi_identity", Db.PkMultiIdentity);
-			clientDB.AddTable<Point>("points", Db.Points);
-			clientDB.AddTable<Private>("private", Db.Private);
-			clientDB.AddTable<RepeatingTestArg>("repeating_test_arg", Db.RepeatingTestArg);
-			clientDB.AddTable<TestA>("test_a", Db.TestA);
-			clientDB.AddTable<TestD>("test_d", Db.TestD);
-			clientDB.AddTable<TestE>("test_e", Db.TestE);
-			clientDB.AddTable<TestFoobar>("test_f", Db.TestF);
+			clientDB.AddTable<HasSpecialStuff>(0, Db.HasSpecialStuff);
+			clientDB.AddTable<PkMultiIdentity>(1, Db.PkMultiIdentity);
+			clientDB.AddTable<Point>(2, Db.Points);
+			clientDB.AddTable<Private>(3, Db.Private);
+			clientDB.AddTable<RepeatingTestArg>(4, Db.RepeatingTestArg);
+			clientDB.AddTable<TestA>(5, Db.TestA);
+			clientDB.AddTable<TestD>(6, Db.TestD);
+			clientDB.AddTable<TestE>(7, Db.TestE);
+			clientDB.AddTable<TestFoobar>(8, Db.TestF);
 		}
 
-		protected override Reducer ToReducer(TransactionUpdate update)
+		protected override Reducer ToReducer(uint reducerIdx, TransactionUpdate update)
 		{
 			var encodedArgs = update.ReducerCall.Args;
-			return update.ReducerCall.ReducerName switch {
-				"add_player" => new Reducer.AddPlayer(BSATNHelpers.Decode<AddPlayer>(encodedArgs)),
-				"add_private" => new Reducer.AddPrivate(BSATNHelpers.Decode<AddPrivate>(encodedArgs)),
-				"delete_player" => new Reducer.DeletePlayer(BSATNHelpers.Decode<DeletePlayer>(encodedArgs)),
-				"delete_players_by_name" => new Reducer.DeletePlayersByName(BSATNHelpers.Decode<DeletePlayersByName>(encodedArgs)),
-				"query_private" => new Reducer.QueryPrivate(BSATNHelpers.Decode<QueryPrivate>(encodedArgs)),
-				"repeating_test" => new Reducer.RepeatingTest(BSATNHelpers.Decode<RepeatingTest>(encodedArgs)),
-				"test" => new Reducer.Test(BSATNHelpers.Decode<Test>(encodedArgs)),
-				"test_btree_index_args" => new Reducer.TestBtreeIndexArgs(BSATNHelpers.Decode<TestBtreeIndexArgs>(encodedArgs)),
-				"<none>" => new Reducer.StdbNone(default),
-				"__identity_connected__" => new Reducer.StdbIdentityConnected(default),
-				"__identity_disconnected__" => new Reducer.StdbIdentityDisconnected(default),
-				"" => new Reducer.StdbNone(default),
+			return reducerIdx switch {
+				0 => new Reducer.IdentityConnected(BSATNHelpers.Decode<IdentityConnected>(encodedArgs)),
+				1 => new Reducer.Init(BSATNHelpers.Decode<Init>(encodedArgs)),
+				2 => new Reducer.AddPlayer(BSATNHelpers.Decode<AddPlayer>(encodedArgs)),
+				3 => new Reducer.AddPrivate(BSATNHelpers.Decode<AddPrivate>(encodedArgs)),
+				4 => new Reducer.DeletePlayer(BSATNHelpers.Decode<DeletePlayer>(encodedArgs)),
+				5 => new Reducer.DeletePlayersByName(BSATNHelpers.Decode<DeletePlayersByName>(encodedArgs)),
+				6 => new Reducer.QueryPrivate(BSATNHelpers.Decode<QueryPrivate>(encodedArgs)),
+				7 => new Reducer.RepeatingTest(BSATNHelpers.Decode<RepeatingTest>(encodedArgs)),
+				8 => new Reducer.Test(BSATNHelpers.Decode<Test>(encodedArgs)),
+				9 => new Reducer.TestBtreeIndexArgs(BSATNHelpers.Decode<TestBtreeIndexArgs>(encodedArgs)),
+				4294967295 => new Reducer.StdbNone(default),
 				var reducer => throw new ArgumentOutOfRangeException("Reducer", $"Unknown reducer {reducer}")
 			};
 		}
@@ -1119,6 +1190,8 @@ namespace SpacetimeDB
 		{
 			var eventContext = (EventContext)context;
 			return reducer switch {
+				Reducer.IdentityConnected(var args) => Reducers.InvokeIdentityConnected(eventContext, args),
+				Reducer.Init(var args) => Reducers.InvokeInit(eventContext, args),
 				Reducer.AddPlayer(var args) => Reducers.InvokeAddPlayer(eventContext, args),
 				Reducer.AddPrivate(var args) => Reducers.InvokeAddPrivate(eventContext, args),
 				Reducer.DeletePlayer(var args) => Reducers.InvokeDeletePlayer(eventContext, args),
@@ -1127,9 +1200,7 @@ namespace SpacetimeDB
 				Reducer.RepeatingTest(var args) => Reducers.InvokeRepeatingTest(eventContext, args),
 				Reducer.Test(var args) => Reducers.InvokeTest(eventContext, args),
 				Reducer.TestBtreeIndexArgs(var args) => Reducers.InvokeTestBtreeIndexArgs(eventContext, args),
-				Reducer.StdbNone or
-				Reducer.StdbIdentityConnected or
-				Reducer.StdbIdentityDisconnected => true,
+				Reducer.StdbNone => true,
 				_ => throw new ArgumentOutOfRangeException("Reducer", $"Unknown reducer {reducer}")
 			};
 		}