Nullable Fixes;

Author: TWhidden

src/GrokSdk/GrokSdk.csproj

@@ -9,7 +9,7 @@
 		<!-- NuGet Metadata -->
 		<NuspecFile>GrokSdk.nuspec</NuspecFile>
 		<PackageId>Grok</PackageId>
-		<Version>1.0.0</Version>
+		<Version>1.0.1</Version>
 		<Authors>TWhidden</Authors>
 		<Description>xAI Grok dotnet integration</Description>
 		<PackageTags>xAI;Grok;dotnet</PackageTags>

src/GrokSdk/GrokSdk.nuspec

@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
 	<metadata>
 		<id>GrokSdk</id>
-		<version>1.0.0</version>
+		<version>1.0.1</version>
 		<authors>Travis Whidden</authors>
 		<description>xAI Grok dotnet integration</description>
 		<tags>xAI Grok dotnet</tags>

src/GrokSdk/Tools/GrokToolImageGeneration.cs

@@ -67,9 +67,11 @@ public async Task<string> ExecuteAsync(string arguments)
         try
         {
             var args = JsonConvert.DeserializeObject<GrokToolImageGenerationArgs>(arguments);
-            if (string.IsNullOrEmpty(args?.Prompt))
+            if (args == null)
+                return JsonConvert.SerializeObject(new { error = "Arguments are null." });
+            if (string.IsNullOrEmpty(args.Prompt))
                 return JsonConvert.SerializeObject(new { error = "Prompt cannot be empty." });
-            if (args.N < 1 || args.N > 10)
+            if (args.N is < 1 or > 10)
                 return JsonConvert.SerializeObject(new { error = "n must be between 1 and 10." });
             if (args.ResponseFormat != "url" && args.ResponseFormat != "base64")
                 return JsonConvert.SerializeObject(

src/GrokSdk/Tools/GrokToolReasoning.cs

@@ -54,7 +54,7 @@ public GrokToolReasoning(GrokClient client, string grokModel = "grok-3-mini-beta
     /// <returns>A task resolving to a JSON-serialized string with the reasoning result or an error message.</returns>
     public async Task<string> ExecuteAsync(string arguments)
     {
-        ReasoningArgs args;
+        ReasoningArgs? args;
         try
         {
             args = JsonConvert.DeserializeObject<ReasoningArgs>(arguments);
@@ -64,6 +64,9 @@ public async Task<string> ExecuteAsync(string arguments)
             return JsonConvert.SerializeObject(new { error = $"Invalid arguments: {ex.Message}" });
         }
 
+        if (args == null)
+            return JsonConvert.SerializeObject(new { error = "Args are null" });
+        
         if (string.IsNullOrEmpty(args.Problem))
             return JsonConvert.SerializeObject(new { error = "Problem cannot be empty." });