diff --git a/src/libs/PromptLayer/Generated/PromptLayer.ISmartTablesClient.CreateTableSheet.g.cs b/src/libs/PromptLayer/Generated/PromptLayer.ISmartTablesClient.CreateTableSheet.g.cs
index b84a98d..e70f5fa 100644
--- a/src/libs/PromptLayer/Generated/PromptLayer.ISmartTablesClient.CreateTableSheet.g.cs
+++ b/src/libs/PromptLayer/Generated/PromptLayer.ISmartTablesClient.CreateTableSheet.g.cs
@@ -6,7 +6,7 @@ public partial interface ISmartTablesClient
     {
         /// <summary>
         /// Create Sheet<br/>
-        /// Create a new sheet in a table by importing data from a file (CSV or JSON, base64-encoded) or from request log history. Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
+        /// Create a new sheet in a table. Omit source to create a blank sheet with a default Column A scaffold (returns 201), or import data from a file (CSV or JSON, base64-encoded) or from request log history (returns 202). Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
         /// </summary>
         /// <param name="tableId"></param>
         /// <param name="request"></param>
@@ -21,7 +21,7 @@ public partial interface ISmartTablesClient
             global::System.Threading.CancellationToken cancellationToken = default);
         /// <summary>
         /// Create Sheet<br/>
-        /// Create a new sheet in a table by importing data from a file (CSV or JSON, base64-encoded) or from request log history. Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
+        /// Create a new sheet in a table. Omit source to create a blank sheet with a default Column A scaffold (returns 201), or import data from a file (CSV or JSON, base64-encoded) or from request log history (returns 202). Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
         /// </summary>
         /// <param name="tableId"></param>
         /// <param name="request"></param>
@@ -36,30 +36,30 @@ public partial interface ISmartTablesClient
             global::System.Threading.CancellationToken cancellationToken = default);
         /// <summary>
         /// Create Sheet<br/>
-        /// Create a new sheet in a table by importing data from a file (CSV or JSON, base64-encoded) or from request log history. Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
+        /// Create a new sheet in a table. Omit source to create a blank sheet with a default Column A scaffold (returns 201), or import data from a file (CSV or JSON, base64-encoded) or from request log history (returns 202). Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
         /// </summary>
         /// <param name="tableId"></param>
         /// <param name="title">
-        /// Sheet title. Defaults to the source file name or 'Request Logs'.
+        /// Sheet title. Defaults to 'Sheet N' when source is omitted, or to the source file name / 'Request Logs' for imports.
         /// </param>
         /// <param name="index">
         /// Display position within the table (0-based). Defaults to appending at the end.
         /// </param>
         /// <param name="operationId">
-        /// Optional idempotency key for the import operation.
+        /// Optional idempotency key for import operations. Not allowed when source is omitted.
         /// </param>
         /// <param name="source">
-        /// Data source for the sheet.
+        /// Optional data source for the sheet. Omit to create a blank sheet with a default Column A scaffold.
         /// </param>
         /// <param name="requestOptions">Per-request overrides such as headers, query parameters, timeout, retries, and response buffering.</param>
         /// <param name="cancellationToken">The token to cancel the operation with</param>
         /// <exception cref="global::System.InvalidOperationException"></exception>
         global::System.Threading.Tasks.Task<global::PromptLayer.CreateTableSheetResponse> CreateTableSheetAsync(
             global::System.Guid tableId,
-            global::PromptLayer.OneOf<global::PromptLayer.CreateTableSheetRequestSourceFileSource, global::PromptLayer.CreateTableSheetRequestSourceRequestLogsSource> source,
             string? title = default,
             int? index = default,
             string? operationId = default,
+            global::PromptLayer.OneOf<global::PromptLayer.CreateTableSheetRequestSourceFileSource, global::PromptLayer.CreateTableSheetRequestSourceRequestLogsSource>? source = default,
             global::PromptLayer.AutoSDKRequestOptions? requestOptions = default,
             global::System.Threading.CancellationToken cancellationToken = default);
     }
diff --git a/src/libs/PromptLayer/Generated/PromptLayer.JsonSerializerContext.g.cs b/src/libs/PromptLayer/Generated/PromptLayer.JsonSerializerContext.g.cs
index 14bc288..acc754d 100644
--- a/src/libs/PromptLayer/Generated/PromptLayer.JsonSerializerContext.g.cs
+++ b/src/libs/PromptLayer/Generated/PromptLayer.JsonSerializerContext.g.cs
@@ -2487,6 +2487,7 @@ internal sealed partial class SourceGenerationContextChunk0 : global::System.Tex
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::PromptLayer.ListTableSheetsResponse))]
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::System.Collections.Generic.IList<global::PromptLayer.Sheet>))]
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::PromptLayer.CreateTableSheetResponse))]
+    [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::PromptLayer.CreateTableSheetResponse2))]
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::PromptLayer.GetTableSheetOperationResponse2))]
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::PromptLayer.GetTableSheetResponse))]
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::PromptLayer.UpdateTableSheetResponse))]
diff --git a/src/libs/PromptLayer/Generated/PromptLayer.JsonSerializerContextTypes.g.cs b/src/libs/PromptLayer/Generated/PromptLayer.JsonSerializerContextTypes.g.cs
index 3bc2f0d..60aba7f 100644
--- a/src/libs/PromptLayer/Generated/PromptLayer.JsonSerializerContextTypes.g.cs
+++ b/src/libs/PromptLayer/Generated/PromptLayer.JsonSerializerContextTypes.g.cs
@@ -2636,215 +2636,219 @@ public sealed partial class JsonSerializerContextTypes
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.GetTableSheetOperationResponse2? Type652 { get; set; }
+        public global::PromptLayer.CreateTableSheetResponse2? Type652 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.GetTableSheetResponse? Type653 { get; set; }
+        public global::PromptLayer.GetTableSheetOperationResponse2? Type653 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.UpdateTableSheetResponse? Type654 { get; set; }
+        public global::PromptLayer.GetTableSheetResponse? Type654 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.DeleteTableSheetResponse? Type655 { get; set; }
+        public global::PromptLayer.UpdateTableSheetResponse? Type655 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.ListTableSheetColumnsResponse? Type656 { get; set; }
+        public global::PromptLayer.DeleteTableSheetResponse? Type656 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::System.Collections.Generic.IList<global::PromptLayer.Column>? Type657 { get; set; }
+        public global::PromptLayer.ListTableSheetColumnsResponse? Type657 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateTableSheetColumnResponse? Type658 { get; set; }
+        public global::System.Collections.Generic.IList<global::PromptLayer.Column>? Type658 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::System.Collections.Generic.IList<global::PromptLayer.Cell>? Type659 { get; set; }
+        public global::PromptLayer.CreateTableSheetColumnResponse? Type659 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.UpdateTableSheetColumnResponse? Type660 { get; set; }
+        public global::System.Collections.Generic.IList<global::PromptLayer.Cell>? Type660 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.DeleteTableSheetColumnResponse? Type661 { get; set; }
+        public global::PromptLayer.UpdateTableSheetColumnResponse? Type661 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.ListTableSheetRowsResponse? Type662 { get; set; }
+        public global::PromptLayer.DeleteTableSheetColumnResponse? Type662 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::System.Collections.Generic.IList<global::PromptLayer.ListTableSheetRowsResponseDataItem>? Type663 { get; set; }
+        public global::PromptLayer.ListTableSheetRowsResponse? Type663 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.ListTableSheetRowsResponseDataItem? Type664 { get; set; }
+        public global::System.Collections.Generic.IList<global::PromptLayer.ListTableSheetRowsResponseDataItem>? Type664 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::System.Collections.Generic.Dictionary<string, global::PromptLayer.Cell>? Type665 { get; set; }
+        public global::PromptLayer.ListTableSheetRowsResponseDataItem? Type665 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.AddTableSheetRowsResponse? Type666 { get; set; }
+        public global::System.Collections.Generic.Dictionary<string, global::PromptLayer.Cell>? Type666 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::System.Collections.Generic.IList<global::PromptLayer.AddTableSheetRowsResponseRow>? Type667 { get; set; }
+        public global::PromptLayer.AddTableSheetRowsResponse? Type667 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.AddTableSheetRowsResponseRow? Type668 { get; set; }
+        public global::System.Collections.Generic.IList<global::PromptLayer.AddTableSheetRowsResponseRow>? Type668 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.GetTableSheetCellResponse? Type669 { get; set; }
+        public global::PromptLayer.AddTableSheetRowsResponseRow? Type669 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.UpdateTableSheetCellResponse? Type670 { get; set; }
+        public global::PromptLayer.GetTableSheetCellResponse? Type670 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateTableSheetCellRecalculationsBatchResponse? Type671 { get; set; }
+        public global::PromptLayer.UpdateTableSheetCellResponse? Type671 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateTableSheetCellRecalculationResponse? Type672 { get; set; }
+        public global::PromptLayer.CreateTableSheetCellRecalculationsBatchResponse? Type672 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateToolVersionResponse? Type673 { get; set; }
+        public global::PromptLayer.CreateTableSheetCellRecalculationResponse? Type673 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.TestExecuteToolResponse? Type674 { get; set; }
+        public global::PromptLayer.CreateToolVersionResponse? Type674 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.TestExecuteToolResponseResult? Type675 { get; set; }
+        public global::PromptLayer.TestExecuteToolResponse? Type675 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.TestExecuteToolResponseResultStatus? Type676 { get; set; }
+        public global::PromptLayer.TestExecuteToolResponseResult? Type676 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CloseTraceResponse? Type677 { get; set; }
+        public global::PromptLayer.TestExecuteToolResponseResultStatus? Type677 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CloseTraceResponseClosure? Type678 { get; set; }
+        public global::PromptLayer.CloseTraceResponse? Type678 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CloseTraceResponseClosureStatus? Type679 { get; set; }
+        public global::PromptLayer.CloseTraceResponseClosure? Type679 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CloseTraceResponse2? Type680 { get; set; }
+        public global::PromptLayer.CloseTraceResponseClosureStatus? Type680 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.ListWorkspaceEnvVarsResponse? Type681 { get; set; }
+        public global::PromptLayer.CloseTraceResponse2? Type681 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::System.Collections.Generic.IList<global::PromptLayer.ListWorkspaceEnvVarsResponseWorkspaceEnvVar>? Type682 { get; set; }
+        public global::PromptLayer.ListWorkspaceEnvVarsResponse? Type682 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.ListWorkspaceEnvVarsResponseWorkspaceEnvVar? Type683 { get; set; }
+        public global::System.Collections.Generic.IList<global::PromptLayer.ListWorkspaceEnvVarsResponseWorkspaceEnvVar>? Type683 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateWorkspaceEnvVarResponse? Type684 { get; set; }
+        public global::PromptLayer.ListWorkspaceEnvVarsResponseWorkspaceEnvVar? Type684 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateWorkspaceEnvVarResponseWorkspaceEnvVar? Type685 { get; set; }
+        public global::PromptLayer.CreateWorkspaceEnvVarResponse? Type685 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateWorkspaceEnvVarResponse2? Type686 { get; set; }
+        public global::PromptLayer.CreateWorkspaceEnvVarResponseWorkspaceEnvVar? Type686 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.UpdateWorkspaceEnvVarResponse? Type687 { get; set; }
+        public global::PromptLayer.CreateWorkspaceEnvVarResponse2? Type687 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.UpdateWorkspaceEnvVarResponseWorkspaceEnvVar? Type688 { get; set; }
+        public global::PromptLayer.UpdateWorkspaceEnvVarResponse? Type688 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.UpdateWorkspaceEnvVarResponse2? Type689 { get; set; }
+        public global::PromptLayer.UpdateWorkspaceEnvVarResponseWorkspaceEnvVar? Type689 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.DeleteWorkspaceEnvVarResponse? Type690 { get; set; }
+        public global::PromptLayer.UpdateWorkspaceEnvVarResponse2? Type690 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.DeleteWorkspaceEnvVarResponse2? Type691 { get; set; }
+        public global::PromptLayer.DeleteWorkspaceEnvVarResponse? Type691 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.ListToolEnvVarsResponse? Type692 { get; set; }
+        public global::PromptLayer.DeleteWorkspaceEnvVarResponse2? Type692 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::System.Collections.Generic.IList<global::PromptLayer.ListToolEnvVarsResponseToolEnvVar>? Type693 { get; set; }
+        public global::PromptLayer.ListToolEnvVarsResponse? Type693 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.ListToolEnvVarsResponseToolEnvVar? Type694 { get; set; }
+        public global::System.Collections.Generic.IList<global::PromptLayer.ListToolEnvVarsResponseToolEnvVar>? Type694 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.ListToolEnvVarsResponse2? Type695 { get; set; }
+        public global::PromptLayer.ListToolEnvVarsResponseToolEnvVar? Type695 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateToolEnvVarResponse? Type696 { get; set; }
+        public global::PromptLayer.ListToolEnvVarsResponse2? Type696 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateToolEnvVarResponseToolEnvVar? Type697 { get; set; }
+        public global::PromptLayer.CreateToolEnvVarResponse? Type697 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateToolEnvVarResponse2? Type698 { get; set; }
+        public global::PromptLayer.CreateToolEnvVarResponseToolEnvVar? Type698 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.CreateToolEnvVarResponse3? Type699 { get; set; }
+        public global::PromptLayer.CreateToolEnvVarResponse2? Type699 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.UpdateToolEnvVarResponse? Type700 { get; set; }
+        public global::PromptLayer.CreateToolEnvVarResponse3? Type700 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.UpdateToolEnvVarResponseToolEnvVar? Type701 { get; set; }
+        public global::PromptLayer.UpdateToolEnvVarResponse? Type701 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.UpdateToolEnvVarResponse2? Type702 { get; set; }
+        public global::PromptLayer.UpdateToolEnvVarResponseToolEnvVar? Type702 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.DeleteToolEnvVarResponse? Type703 { get; set; }
+        public global::PromptLayer.UpdateToolEnvVarResponse2? Type703 { get; set; }
         /// <summary>
         /// 
         /// </summary>
-        public global::PromptLayer.DeleteToolEnvVarResponse2? Type704 { get; set; }
+        public global::PromptLayer.DeleteToolEnvVarResponse? Type704 { get; set; }
+        /// <summary>
+        /// 
+        /// </summary>
+        public global::PromptLayer.DeleteToolEnvVarResponse2? Type705 { get; set; }
 
         /// <summary>
         /// 
diff --git a/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetRequest.g.cs b/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetRequest.g.cs
index 7a71cac..3264647 100644
--- a/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetRequest.g.cs
+++ b/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetRequest.g.cs
@@ -9,7 +9,7 @@ namespace PromptLayer
     public sealed partial class CreateTableSheetRequest
     {
         /// <summary>
-        /// Sheet title. Defaults to the source file name or 'Request Logs'.
+        /// Sheet title. Defaults to 'Sheet N' when source is omitted, or to the source file name / 'Request Logs' for imports.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("title")]
         public string? Title { get; set; }
@@ -21,18 +21,17 @@ public sealed partial class CreateTableSheetRequest
         public int? Index { get; set; }
 
         /// <summary>
-        /// Optional idempotency key for the import operation.
+        /// Optional idempotency key for import operations. Not allowed when source is omitted.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("operation_id")]
         public string? OperationId { get; set; }
 
         /// <summary>
-        /// Data source for the sheet.
+        /// Optional data source for the sheet. Omit to create a blank sheet with a default Column A scaffold.
         /// </summary>
         [global::System.Text.Json.Serialization.JsonPropertyName("source")]
         [global::System.Text.Json.Serialization.JsonConverter(typeof(global::PromptLayer.JsonConverters.OneOfJsonConverter<global::PromptLayer.CreateTableSheetRequestSourceFileSource, global::PromptLayer.CreateTableSheetRequestSourceRequestLogsSource>))]
-        [global::System.Text.Json.Serialization.JsonRequired]
-        public required global::PromptLayer.OneOf<global::PromptLayer.CreateTableSheetRequestSourceFileSource, global::PromptLayer.CreateTableSheetRequestSourceRequestLogsSource> Source { get; set; }
+        public global::PromptLayer.OneOf<global::PromptLayer.CreateTableSheetRequestSourceFileSource, global::PromptLayer.CreateTableSheetRequestSourceRequestLogsSource>? Source { get; set; }
 
         /// <summary>
         /// Additional properties that are not explicitly defined in the schema
@@ -43,26 +42,26 @@ public sealed partial class CreateTableSheetRequest
         /// <summary>
         /// Initializes a new instance of the <see cref="CreateTableSheetRequest" /> class.
         /// </summary>
-        /// <param name="source">
-        /// Data source for the sheet.
-        /// </param>
         /// <param name="title">
-        /// Sheet title. Defaults to the source file name or 'Request Logs'.
+        /// Sheet title. Defaults to 'Sheet N' when source is omitted, or to the source file name / 'Request Logs' for imports.
         /// </param>
         /// <param name="index">
         /// Display position within the table (0-based). Defaults to appending at the end.
         /// </param>
         /// <param name="operationId">
-        /// Optional idempotency key for the import operation.
+        /// Optional idempotency key for import operations. Not allowed when source is omitted.
+        /// </param>
+        /// <param name="source">
+        /// Optional data source for the sheet. Omit to create a blank sheet with a default Column A scaffold.
         /// </param>
 #if NET7_0_OR_GREATER
         [global::System.Diagnostics.CodeAnalysis.SetsRequiredMembers]
 #endif
         public CreateTableSheetRequest(
-            global::PromptLayer.OneOf<global::PromptLayer.CreateTableSheetRequestSourceFileSource, global::PromptLayer.CreateTableSheetRequestSourceRequestLogsSource> source,
             string? title,
             int? index,
-            string? operationId)
+            string? operationId,
+            global::PromptLayer.OneOf<global::PromptLayer.CreateTableSheetRequestSourceFileSource, global::PromptLayer.CreateTableSheetRequestSourceRequestLogsSource>? source)
         {
             this.Title = title;
             this.Index = index;
diff --git a/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetResponse.g.cs b/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetResponse.g.cs
index c3282aa..c086621 100644
--- a/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetResponse.g.cs
+++ b/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetResponse.g.cs
@@ -14,24 +14,6 @@ public sealed partial class CreateTableSheetResponse
         [global::System.Text.Json.Serialization.JsonPropertyName("success")]
         public bool? Success { get; set; }
 
-        /// <summary>
-        /// 
-        /// </summary>
-        [global::System.Text.Json.Serialization.JsonPropertyName("message")]
-        public string? Message { get; set; }
-
-        /// <summary>
-        /// 
-        /// </summary>
-        [global::System.Text.Json.Serialization.JsonPropertyName("operation_id")]
-        public string? OperationId { get; set; }
-
-        /// <summary>
-        /// Status of an asynchronous sheet import operation.
-        /// </summary>
-        [global::System.Text.Json.Serialization.JsonPropertyName("operation")]
-        public global::PromptLayer.TableImportOperation? Operation { get; set; }
-
         /// <summary>
         /// A sheet within a Table.
         /// </summary>
@@ -48,11 +30,6 @@ public sealed partial class CreateTableSheetResponse
         /// Initializes a new instance of the <see cref="CreateTableSheetResponse" /> class.
         /// </summary>
         /// <param name="success"></param>
-        /// <param name="message"></param>
-        /// <param name="operationId"></param>
-        /// <param name="operation">
-        /// Status of an asynchronous sheet import operation.
-        /// </param>
         /// <param name="sheet">
         /// A sheet within a Table.
         /// </param>
@@ -61,15 +38,9 @@ public sealed partial class CreateTableSheetResponse
 #endif
         public CreateTableSheetResponse(
             bool? success,
-            string? message,
-            string? operationId,
-            global::PromptLayer.TableImportOperation? operation,
             global::PromptLayer.Sheet? sheet)
         {
             this.Success = success;
-            this.Message = message;
-            this.OperationId = operationId;
-            this.Operation = operation;
             this.Sheet = sheet;
         }
 
diff --git a/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetResponse2.Json.g.cs b/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetResponse2.Json.g.cs
new file mode 100644
index 0000000..66f1d91
--- /dev/null
+++ b/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetResponse2.Json.g.cs
@@ -0,0 +1,141 @@
+#nullable enable
+
+namespace PromptLayer
+{
+    public sealed partial class CreateTableSheetResponse2
+    {
+        /// <summary>
+        /// Serializes the current instance to a JSON string using the provided JsonSerializerContext.
+        /// </summary>
+        public string ToJson(
+            global::System.Text.Json.Serialization.JsonSerializerContext jsonSerializerContext)
+        {
+            return global::System.Text.Json.JsonSerializer.Serialize(
+                this,
+                this.GetType(),
+                jsonSerializerContext);
+        }
+
+        /// <summary>
+        /// Serializes the current instance to a JSON string using the generated default JsonSerializerContext.
+        /// </summary>
+        public string ToJson()
+        {
+            return ToJson(global::PromptLayer.SourceGenerationContext.Default);
+        }
+
+        /// <summary>
+        /// Serializes the current instance to a JSON string using the provided JsonSerializerOptions.
+        /// </summary>
+#if NET8_0_OR_GREATER
+        [global::System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")]
+        [global::System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")]
+#endif
+        public string ToJson(
+            global::System.Text.Json.JsonSerializerOptions? jsonSerializerOptions = null)
+        {
+            if (jsonSerializerOptions is null)
+            {
+                return ToJson(global::PromptLayer.SourceGenerationContext.Default);
+            }
+
+            return global::System.Text.Json.JsonSerializer.Serialize(
+                this,
+                jsonSerializerOptions);
+        }
+
+        /// <summary>
+        /// Deserializes a JSON string using the provided JsonSerializerContext.
+        /// </summary>
+        public static global::PromptLayer.CreateTableSheetResponse2? FromJson(
+            string json,
+            global::System.Text.Json.Serialization.JsonSerializerContext jsonSerializerContext)
+        {
+            return global::System.Text.Json.JsonSerializer.Deserialize(
+                json,
+                typeof(global::PromptLayer.CreateTableSheetResponse2),
+                jsonSerializerContext) as global::PromptLayer.CreateTableSheetResponse2;
+        }
+
+        /// <summary>
+        /// Deserializes a JSON string using the generated default JsonSerializerContext.
+        /// </summary>
+        public static global::PromptLayer.CreateTableSheetResponse2? FromJson(
+            string json)
+        {
+            return FromJson(
+                json,
+                global::PromptLayer.SourceGenerationContext.Default);
+        }
+
+        /// <summary>
+        /// Deserializes a JSON string using the provided JsonSerializerOptions.
+        /// </summary>
+#if NET8_0_OR_GREATER
+        [global::System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")]
+        [global::System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")]
+#endif
+        public static global::PromptLayer.CreateTableSheetResponse2? FromJson(
+            string json,
+            global::System.Text.Json.JsonSerializerOptions? jsonSerializerOptions = null)
+        {
+            if (jsonSerializerOptions is null)
+            {
+                return FromJson(
+                    json,
+                    global::PromptLayer.SourceGenerationContext.Default);
+            }
+
+            return global::System.Text.Json.JsonSerializer.Deserialize<global::PromptLayer.CreateTableSheetResponse2>(
+                json,
+                jsonSerializerOptions);
+        }
+
+        /// <summary>
+        /// Deserializes a JSON stream using the provided JsonSerializerContext.
+        /// </summary>
+        public static async global::System.Threading.Tasks.ValueTask<global::PromptLayer.CreateTableSheetResponse2?> FromJsonStreamAsync(
+            global::System.IO.Stream jsonStream,
+            global::System.Text.Json.Serialization.JsonSerializerContext jsonSerializerContext)
+        {
+            return (await global::System.Text.Json.JsonSerializer.DeserializeAsync(
+                jsonStream,
+                typeof(global::PromptLayer.CreateTableSheetResponse2),
+                jsonSerializerContext).ConfigureAwait(false)) as global::PromptLayer.CreateTableSheetResponse2;
+        }
+
+        /// <summary>
+        /// Deserializes a JSON stream using the generated default JsonSerializerContext.
+        /// </summary>
+        public static global::System.Threading.Tasks.ValueTask<global::PromptLayer.CreateTableSheetResponse2?> FromJsonStreamAsync(
+            global::System.IO.Stream jsonStream)
+        {
+            return FromJsonStreamAsync(
+                jsonStream,
+                global::PromptLayer.SourceGenerationContext.Default);
+        }
+
+        /// <summary>
+        /// Deserializes a JSON stream using the provided JsonSerializerOptions.
+        /// </summary>
+#if NET8_0_OR_GREATER
+        [global::System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.")]
+        [global::System.Diagnostics.CodeAnalysis.RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.")]
+#endif
+        public static global::System.Threading.Tasks.ValueTask<global::PromptLayer.CreateTableSheetResponse2?> FromJsonStreamAsync(
+            global::System.IO.Stream jsonStream,
+            global::System.Text.Json.JsonSerializerOptions? jsonSerializerOptions = null)
+        {
+            if (jsonSerializerOptions is null)
+            {
+                return FromJsonStreamAsync(
+                    jsonStream,
+                    global::PromptLayer.SourceGenerationContext.Default);
+            }
+
+            return global::System.Text.Json.JsonSerializer.DeserializeAsync<global::PromptLayer.CreateTableSheetResponse2?>(
+                jsonStream,
+                jsonSerializerOptions);
+        }
+    }
+}
diff --git a/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetResponse2.g.cs b/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetResponse2.g.cs
new file mode 100644
index 0000000..1332aee
--- /dev/null
+++ b/src/libs/PromptLayer/Generated/PromptLayer.Models.CreateTableSheetResponse2.g.cs
@@ -0,0 +1,84 @@
+
+#nullable enable
+
+namespace PromptLayer
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public sealed partial class CreateTableSheetResponse2
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        [global::System.Text.Json.Serialization.JsonPropertyName("success")]
+        public bool? Success { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        [global::System.Text.Json.Serialization.JsonPropertyName("message")]
+        public string? Message { get; set; }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        [global::System.Text.Json.Serialization.JsonPropertyName("operation_id")]
+        public string? OperationId { get; set; }
+
+        /// <summary>
+        /// Status of an asynchronous sheet import operation.
+        /// </summary>
+        [global::System.Text.Json.Serialization.JsonPropertyName("operation")]
+        public global::PromptLayer.TableImportOperation? Operation { get; set; }
+
+        /// <summary>
+        /// A sheet within a Table.
+        /// </summary>
+        [global::System.Text.Json.Serialization.JsonPropertyName("sheet")]
+        public global::PromptLayer.Sheet? Sheet { get; set; }
+
+        /// <summary>
+        /// Additional properties that are not explicitly defined in the schema
+        /// </summary>
+        [global::System.Text.Json.Serialization.JsonExtensionData]
+        public global::System.Collections.Generic.IDictionary<string, object> AdditionalProperties { get; set; } = new global::System.Collections.Generic.Dictionary<string, object>();
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="CreateTableSheetResponse2" /> class.
+        /// </summary>
+        /// <param name="success"></param>
+        /// <param name="message"></param>
+        /// <param name="operationId"></param>
+        /// <param name="operation">
+        /// Status of an asynchronous sheet import operation.
+        /// </param>
+        /// <param name="sheet">
+        /// A sheet within a Table.
+        /// </param>
+#if NET7_0_OR_GREATER
+        [global::System.Diagnostics.CodeAnalysis.SetsRequiredMembers]
+#endif
+        public CreateTableSheetResponse2(
+            bool? success,
+            string? message,
+            string? operationId,
+            global::PromptLayer.TableImportOperation? operation,
+            global::PromptLayer.Sheet? sheet)
+        {
+            this.Success = success;
+            this.Message = message;
+            this.OperationId = operationId;
+            this.Operation = operation;
+            this.Sheet = sheet;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="CreateTableSheetResponse2" /> class.
+        /// </summary>
+        public CreateTableSheetResponse2()
+        {
+        }
+
+    }
+}
\ No newline at end of file
diff --git a/src/libs/PromptLayer/Generated/PromptLayer.SmartTablesClient.CreateTableSheet.g.cs b/src/libs/PromptLayer/Generated/PromptLayer.SmartTablesClient.CreateTableSheet.g.cs
index 0342b19..c88d40a 100644
--- a/src/libs/PromptLayer/Generated/PromptLayer.SmartTablesClient.CreateTableSheet.g.cs
+++ b/src/libs/PromptLayer/Generated/PromptLayer.SmartTablesClient.CreateTableSheet.g.cs
@@ -45,7 +45,7 @@ partial void ProcessCreateTableSheetResponseContent(
 
         /// <summary>
         /// Create Sheet<br/>
-        /// Create a new sheet in a table by importing data from a file (CSV or JSON, base64-encoded) or from request log history. Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
+        /// Create a new sheet in a table. Omit source to create a blank sheet with a default Column A scaffold (returns 201), or import data from a file (CSV or JSON, base64-encoded) or from request log history (returns 202). Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
         /// </summary>
         /// <param name="tableId"></param>
         /// <param name="request"></param>
@@ -71,7 +71,7 @@ partial void ProcessCreateTableSheetResponseContent(
         }
         /// <summary>
         /// Create Sheet<br/>
-        /// Create a new sheet in a table by importing data from a file (CSV or JSON, base64-encoded) or from request log history. Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
+        /// Create a new sheet in a table. Omit source to create a blank sheet with a default Column A scaffold (returns 201), or import data from a file (CSV or JSON, base64-encoded) or from request log history (returns 202). Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
         /// </summary>
         /// <param name="tableId"></param>
         /// <param name="request"></param>
@@ -592,30 +592,30 @@ partial void ProcessCreateTableSheetResponseContent(
         }
         /// <summary>
         /// Create Sheet<br/>
-        /// Create a new sheet in a table by importing data from a file (CSV or JSON, base64-encoded) or from request log history. Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
+        /// Create a new sheet in a table. Omit source to create a blank sheet with a default Column A scaffold (returns 201), or import data from a file (CSV or JSON, base64-encoded) or from request log history (returns 202). Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.
         /// </summary>
         /// <param name="tableId"></param>
         /// <param name="title">
-        /// Sheet title. Defaults to the source file name or 'Request Logs'.
+        /// Sheet title. Defaults to 'Sheet N' when source is omitted, or to the source file name / 'Request Logs' for imports.
         /// </param>
         /// <param name="index">
         /// Display position within the table (0-based). Defaults to appending at the end.
         /// </param>
         /// <param name="operationId">
-        /// Optional idempotency key for the import operation.
+        /// Optional idempotency key for import operations. Not allowed when source is omitted.
         /// </param>
         /// <param name="source">
-        /// Data source for the sheet.
+        /// Optional data source for the sheet. Omit to create a blank sheet with a default Column A scaffold.
         /// </param>
         /// <param name="requestOptions">Per-request overrides such as headers, query parameters, timeout, retries, and response buffering.</param>
         /// <param name="cancellationToken">The token to cancel the operation with</param>
         /// <exception cref="global::System.InvalidOperationException"></exception>
         public async global::System.Threading.Tasks.Task<global::PromptLayer.CreateTableSheetResponse> CreateTableSheetAsync(
             global::System.Guid tableId,
-            global::PromptLayer.OneOf<global::PromptLayer.CreateTableSheetRequestSourceFileSource, global::PromptLayer.CreateTableSheetRequestSourceRequestLogsSource> source,
             string? title = default,
             int? index = default,
             string? operationId = default,
+            global::PromptLayer.OneOf<global::PromptLayer.CreateTableSheetRequestSourceFileSource, global::PromptLayer.CreateTableSheetRequestSourceRequestLogsSource>? source = default,
             global::PromptLayer.AutoSDKRequestOptions? requestOptions = default,
             global::System.Threading.CancellationToken cancellationToken = default)
         {
diff --git a/src/libs/PromptLayer/openapi.json b/src/libs/PromptLayer/openapi.json
index 700063a..2ad7ad3 100644
--- a/src/libs/PromptLayer/openapi.json
+++ b/src/libs/PromptLayer/openapi.json
@@ -10313,7 +10313,7 @@
           "smart-tables"
         ],
         "summary": "Create Sheet",
-        "description": "Create a new sheet in a table by importing data from a file (CSV or JSON, base64-encoded) or from request log history. Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.",
+        "description": "Create a new sheet in a table. Omit source to create a blank sheet with a default Column A scaffold (returns 201), or import data from a file (CSV or JSON, base64-encoded) or from request log history (returns 202). Requests are scoped to the workspace associated with the API key; table, sheet, column, cell, operation, and version IDs must belong to that workspace.",
         "operationId": "create_table_sheet",
         "parameters": [
           {
@@ -10332,14 +10332,11 @@
             "application/json": {
               "schema": {
                 "type": "object",
-                "required": [
-                  "source"
-                ],
                 "properties": {
                   "title": {
                     "type": "string",
                     "nullable": true,
-                    "description": "Sheet title. Defaults to the source file name or 'Request Logs'."
+                    "description": "Sheet title. Defaults to 'Sheet N' when source is omitted, or to the source file name / 'Request Logs' for imports."
                   },
                   "index": {
                     "type": "integer",
@@ -10349,10 +10346,10 @@
                   "operation_id": {
                     "type": "string",
                     "nullable": true,
-                    "description": "Optional idempotency key for the import operation."
+                    "description": "Optional idempotency key for import operations. Not allowed when source is omitted."
                   },
                   "source": {
-                    "description": "Data source for the sheet.",
+                    "description": "Optional data source for the sheet. Omit to create a blank sheet with a default Column A scaffold.",
                     "oneOf": [
                       {
                         "type": "object",
@@ -10432,6 +10429,24 @@
           }
         },
         "responses": {
+          "201": {
+            "description": "Blank sheet created. Returns the sheet with a default Column A scaffold and one empty row.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "object",
+                  "properties": {
+                    "success": {
+                      "type": "boolean"
+                    },
+                    "sheet": {
+                      "$ref": "#/components/schemas/Sheet"
+                    }
+                  }
+                }
+              }
+            }
+          },
           "202": {
             "description": "Import started. Poll the operation endpoint to track progress.",
             "content": {