diff --git a/src/libs/Guardrails/Generated/Guardrails.GuardClient.CreateGuard.g.cs b/src/libs/Guardrails/Generated/Guardrails.GuardClient.CreateGuard.g.cs
index f8a30dd..05cf5af 100644
--- a/src/libs/Guardrails/Generated/Guardrails.GuardClient.CreateGuard.g.cs
+++ b/src/libs/Guardrails/Generated/Guardrails.GuardClient.CreateGuard.g.cs
@@ -177,7 +177,6 @@ partial void ProcessCreateGuardResponseContent(
                 try
                 {
                     __response.EnsureSuccessStatusCode();
-
                     using var __content = await __response.Content.ReadAsStreamAsync(
 #if NET5_0_OR_GREATER
                         cancellationToken
diff --git a/src/libs/Guardrails/Generated/Guardrails.GuardClient.DeleteGuard.g.cs b/src/libs/Guardrails/Generated/Guardrails.GuardClient.DeleteGuard.g.cs
index c67ed03..967abcd 100644
--- a/src/libs/Guardrails/Generated/Guardrails.GuardClient.DeleteGuard.g.cs
+++ b/src/libs/Guardrails/Generated/Guardrails.GuardClient.DeleteGuard.g.cs
@@ -168,7 +168,6 @@ partial void ProcessDeleteGuardResponseContent(
                 try
                 {
                     __response.EnsureSuccessStatusCode();
-
                     using var __content = await __response.Content.ReadAsStreamAsync(
 #if NET5_0_OR_GREATER
                         cancellationToken
diff --git a/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuard.g.cs b/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuard.g.cs
index 9a1cc37..20b6da8 100644
--- a/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuard.g.cs
+++ b/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuard.g.cs
@@ -177,7 +177,6 @@ partial void ProcessGetGuardResponseContent(
                 try
                 {
                     __response.EnsureSuccessStatusCode();
-
                     using var __content = await __response.Content.ReadAsStreamAsync(
 #if NET5_0_OR_GREATER
                         cancellationToken
diff --git a/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuardHistory.g.cs b/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuardHistory.g.cs
index ec5e7f6..6314afb 100644
--- a/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuardHistory.g.cs
+++ b/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuardHistory.g.cs
@@ -174,7 +174,6 @@ partial void ProcessGetGuardHistoryResponseContent(
                 try
                 {
                     __response.EnsureSuccessStatusCode();
-
                     using var __content = await __response.Content.ReadAsStreamAsync(
 #if NET5_0_OR_GREATER
                         cancellationToken
diff --git a/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuards.g.cs b/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuards.g.cs
index 411ec05..67b09ed 100644
--- a/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuards.g.cs
+++ b/src/libs/Guardrails/Generated/Guardrails.GuardClient.GetGuards.g.cs
@@ -162,7 +162,6 @@ partial void ProcessGetGuardsResponseContent(
                 try
                 {
                     __response.EnsureSuccessStatusCode();
-
                     using var __content = await __response.Content.ReadAsStreamAsync(
 #if NET5_0_OR_GREATER
                         cancellationToken
diff --git a/src/libs/Guardrails/Generated/Guardrails.GuardClient.UpdateGuard.g.cs b/src/libs/Guardrails/Generated/Guardrails.GuardClient.UpdateGuard.g.cs
index 26f4031..b1a52dc 100644
--- a/src/libs/Guardrails/Generated/Guardrails.GuardClient.UpdateGuard.g.cs
+++ b/src/libs/Guardrails/Generated/Guardrails.GuardClient.UpdateGuard.g.cs
@@ -183,7 +183,6 @@ partial void ProcessUpdateGuardResponseContent(
                 try
                 {
                     __response.EnsureSuccessStatusCode();
-
                     using var __content = await __response.Content.ReadAsStreamAsync(
 #if NET5_0_OR_GREATER
                         cancellationToken
diff --git a/src/libs/Guardrails/Generated/Guardrails.OpenaiClient.OpenaiChatCompletion.g.cs b/src/libs/Guardrails/Generated/Guardrails.OpenaiClient.OpenaiChatCompletion.g.cs
index d28aef1..80c15dc 100644
--- a/src/libs/Guardrails/Generated/Guardrails.OpenaiClient.OpenaiChatCompletion.g.cs
+++ b/src/libs/Guardrails/Generated/Guardrails.OpenaiClient.OpenaiChatCompletion.g.cs
@@ -183,7 +183,6 @@ partial void ProcessOpenaiChatCompletionResponseContent(
                 try
                 {
                     __response.EnsureSuccessStatusCode();
-
                     using var __content = await __response.Content.ReadAsStreamAsync(
 #if NET5_0_OR_GREATER
                         cancellationToken
diff --git a/src/libs/Guardrails/Generated/Guardrails.Polyfills.g.cs b/src/libs/Guardrails/Generated/Guardrails.Polyfills.g.cs
index 8c1c9fa..2eb8e37 100644
--- a/src/libs/Guardrails/Generated/Guardrails.Polyfills.g.cs
+++ b/src/libs/Guardrails/Generated/Guardrails.Polyfills.g.cs
@@ -1,5 +1,4 @@
 
-#if !NET6_0_OR_GREATER
 #nullable enable
 
 namespace Guardrails
@@ -9,6 +8,7 @@ namespace Guardrails
     /// </summary>
     public static partial class AutoSdkPolyfills
     {
+#if !NET6_0_OR_GREATER
         /// <summary>
         /// 
         /// </summary>
@@ -48,6 +48,128 @@ public static partial class AutoSdkPolyfills
             content = content ?? throw new global::System.ArgumentNullException(nameof(content));
             return content.ReadAsByteArrayAsync();
         }
+#endif
+
+        /// <summary>
+        /// Creates a JSON request content instance.
+        /// </summary>
+        public static global::System.Net.Http.HttpContent CreateJsonContent<T>(
+            T inputValue,
+            string mediaType,
+            global::System.Text.Json.JsonSerializerOptions? jsonSerializerOptions)
+        {
+            if (string.IsNullOrWhiteSpace(mediaType))
+            {
+                throw new global::System.ArgumentException("Media type is required.", nameof(mediaType));
+            }
+
+#if NET5_0_OR_GREATER
+            return global::System.Net.Http.Json.JsonContent.Create(
+                inputValue: inputValue,
+                mediaType: new global::System.Net.Http.Headers.MediaTypeHeaderValue(mediaType),
+                options: jsonSerializerOptions);
+#else
+            var json = global::System.Text.Json.JsonSerializer.Serialize(inputValue, jsonSerializerOptions);
+            var stringContent = new global::System.Net.Http.StringContent(
+                content: json,
+                encoding: global::System.Text.Encoding.UTF8);
+            stringContent.Headers.ContentType = new global::System.Net.Http.Headers.MediaTypeHeaderValue(mediaType)
+            {
+                CharSet = global::System.Text.Encoding.UTF8.WebName,
+            };
+            return stringContent;
+#endif
+        }
+
+        /// <summary>
+        /// Creates a JSON request content instance using a source-generated serializer context.
+        /// </summary>
+        public static global::System.Net.Http.HttpContent CreateJsonContent(
+            object? inputValue,
+            global::System.Type inputType,
+            string mediaType,
+            global::System.Text.Json.Serialization.JsonSerializerContext jsonSerializerContext)
+        {
+            inputType = inputType ?? throw new global::System.ArgumentNullException(nameof(inputType));
+            jsonSerializerContext = jsonSerializerContext ?? throw new global::System.ArgumentNullException(nameof(jsonSerializerContext));
+
+            if (string.IsNullOrWhiteSpace(mediaType))
+            {
+                throw new global::System.ArgumentException("Media type is required.", nameof(mediaType));
+            }
+
+#if NET5_0_OR_GREATER
+            var jsonTypeInfo = jsonSerializerContext.GetTypeInfo(inputType) ??
+                               throw new global::System.InvalidOperationException($"No JsonTypeInfo registered for '{inputType}'.");
+            return global::System.Net.Http.Json.JsonContent.Create(
+                inputValue: inputValue,
+                jsonTypeInfo: jsonTypeInfo,
+                mediaType: new global::System.Net.Http.Headers.MediaTypeHeaderValue(mediaType));
+#else
+            var json = global::System.Text.Json.JsonSerializer.Serialize(
+                value: inputValue,
+                inputType: inputType,
+                jsonSerializerContext);
+            var stringContent = new global::System.Net.Http.StringContent(
+                content: json,
+                encoding: global::System.Text.Encoding.UTF8);
+            stringContent.Headers.ContentType = new global::System.Net.Http.Headers.MediaTypeHeaderValue(mediaType)
+            {
+                CharSet = global::System.Text.Encoding.UTF8.WebName,
+            };
+            return stringContent;
+#endif
+        }
+
+        /// <summary>
+        /// Reads JSON content into the specified type using serializer options.
+        /// </summary>
+        public static async global::System.Threading.Tasks.Task<T?> ReadFromJsonAsync<T>(
+            this global::System.Net.Http.HttpContent content,
+            global::System.Text.Json.JsonSerializerOptions? jsonSerializerOptions,
+            global::System.Threading.CancellationToken cancellationToken)
+        {
+            content = content ?? throw new global::System.ArgumentNullException(nameof(content));
+
+#if NET5_0_OR_GREATER
+            return await global::System.Net.Http.Json.HttpContentJsonExtensions.ReadFromJsonAsync<T>(
+                content,
+                jsonSerializerOptions,
+                cancellationToken).ConfigureAwait(false);
+#else
+            using var stream = await AutoSdkPolyfills.ReadAsStreamAsync(content, cancellationToken).ConfigureAwait(false);
+            return await global::System.Text.Json.JsonSerializer.DeserializeAsync<T>(
+                utf8Json: stream,
+                options: jsonSerializerOptions,
+                cancellationToken: cancellationToken).ConfigureAwait(false);
+#endif
+        }
+
+        /// <summary>
+        /// Reads JSON content into the specified type using a source-generated serializer context.
+        /// </summary>
+        public static async global::System.Threading.Tasks.Task<T?> ReadFromJsonAsync<T>(
+            this global::System.Net.Http.HttpContent content,
+            global::System.Text.Json.Serialization.JsonSerializerContext jsonSerializerContext,
+            global::System.Threading.CancellationToken cancellationToken)
+        {
+            content = content ?? throw new global::System.ArgumentNullException(nameof(content));
+            jsonSerializerContext = jsonSerializerContext ?? throw new global::System.ArgumentNullException(nameof(jsonSerializerContext));
+
+#if NET5_0_OR_GREATER
+            return (T?)await global::System.Net.Http.Json.HttpContentJsonExtensions.ReadFromJsonAsync(
+                content,
+                typeof(T),
+                jsonSerializerContext,
+                cancellationToken).ConfigureAwait(false);
+#else
+            using var stream = await AutoSdkPolyfills.ReadAsStreamAsync(content, cancellationToken).ConfigureAwait(false);
+            return (T?)await global::System.Text.Json.JsonSerializer.DeserializeAsync(
+                utf8Json: stream,
+                returnType: typeof(T),
+                jsonSerializerContext,
+                cancellationToken: cancellationToken).ConfigureAwait(false);
+#endif
+        }
     }
 }
-#endif
\ No newline at end of file
diff --git a/src/libs/Guardrails/Generated/Guardrails.ServiceHealthClient.HealthCheck.g.cs b/src/libs/Guardrails/Generated/Guardrails.ServiceHealthClient.HealthCheck.g.cs
index ea35974..40a26d7 100644
--- a/src/libs/Guardrails/Generated/Guardrails.ServiceHealthClient.HealthCheck.g.cs
+++ b/src/libs/Guardrails/Generated/Guardrails.ServiceHealthClient.HealthCheck.g.cs
@@ -162,7 +162,6 @@ partial void ProcessHealthCheckResponseContent(
                 try
                 {
                     __response.EnsureSuccessStatusCode();
-
                     using var __content = await __response.Content.ReadAsStreamAsync(
 #if NET5_0_OR_GREATER
                         cancellationToken
diff --git a/src/libs/Guardrails/Generated/Guardrails.ValidateClient.Validate.g.cs b/src/libs/Guardrails/Generated/Guardrails.ValidateClient.Validate.g.cs
index a8d8111..a4ab81f 100644
--- a/src/libs/Guardrails/Generated/Guardrails.ValidateClient.Validate.g.cs
+++ b/src/libs/Guardrails/Generated/Guardrails.ValidateClient.Validate.g.cs
@@ -195,7 +195,6 @@ partial void ProcessValidateResponseContent(
                 try
                 {
                     __response.EnsureSuccessStatusCode();
-
                     using var __content = await __response.Content.ReadAsStreamAsync(
 #if NET5_0_OR_GREATER
                         cancellationToken