Add SchemaCreateOptions in McpServerToolCreateOptions/McpServerPromptCreateOptions

src/ModelContextProtocol/Server/AIFunctionMcpServerTool.cs

@@ -151,6 +151,7 @@ private static AIFunctionFactoryOptions CreateAIFunctionFactoryOptions(
                     return null;
                 }
             },
+            JsonSchemaCreateOptions = options?.SchemaCreateOptions,
         };
 
     /// <summary>Creates an <see cref="McpServerTool"/> that wraps the specified <see cref="AIFunction"/>.</summary>

src/ModelContextProtocol/Server/McpServerToolCreateOptions.cs

@@ -1,3 +1,4 @@
+using Microsoft.Extensions.AI;
 using ModelContextProtocol.Utils.Json;
 using System.ComponentModel;
 using System.Text.Json;
@@ -132,6 +133,14 @@ public sealed class McpServerToolCreateOptions
     /// </remarks>
     public JsonSerializerOptions? SerializerOptions { get; set; }
 
+    /// <summary>
+    /// Gets or sets the JSON schema options when creating <see cref="AIFunction"/> from a method.
+    /// </summary>
+    /// <remarks>
+    /// Defaults to <see cref="AIJsonSchemaCreateOptions.Default"/> if left unspecified.
+    /// </remarks>
+    public AIJsonSchemaCreateOptions? SchemaCreateOptions { get; set; }
+
     /// <summary>
     /// Creates a shallow clone of the current <see cref="McpServerToolCreateOptions"/> instance.
     /// </summary>
@@ -147,5 +156,6 @@ internal McpServerToolCreateOptions Clone() =>
             OpenWorld = OpenWorld,
             ReadOnly = ReadOnly,
             SerializerOptions = SerializerOptions,
+            SchemaCreateOptions = SchemaCreateOptions,
         };
 }

tests/ModelContextProtocol.Tests/Server/McpServerToolTests.cs

@@ -355,6 +355,27 @@ public async Task CanReturnCallToolResponse()
         Assert.Equal("image", result.Content[1].Type);
     }
 
+    [Fact]
+    public async Task SupportsSchemaCreateOptions()
+    {
+        AIJsonSchemaCreateOptions schemaCreateOptions = new ()
+        {
+            RequireAllProperties = false
+        };
+
+        McpServerTool tool = McpServerTool.Create((int num1, int num2 = 42) =>
+        {
+            return num2.ToString();
+        }, new() { SchemaCreateOptions = schemaCreateOptions });
+
+        Assert.Collection(
+            tool.ProtocolTool.InputSchema.GetProperty("required").EnumerateArray().Select(x => x.GetString()),
+            [
+                x => Assert.Equal("num1", x),
+            ]
+        );
+    }
+
     private sealed class MyService;
 
     private class DisposableToolType : IDisposable