From 20d726bfdf25fb533355c4999e456336a1d34422 Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Wed, 10 Dec 2025 15:53:41 +0200
Subject: [PATCH] Remove s_additionalProperties from McpClientTool (#1080)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
---
 src/ModelContextProtocol.Core/Client/McpClientTool.cs | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/src/ModelContextProtocol.Core/Client/McpClientTool.cs b/src/ModelContextProtocol.Core/Client/McpClientTool.cs
index 7c21c3c..f4dc060 100644
--- a/src/ModelContextProtocol.Core/Client/McpClientTool.cs
+++ b/src/ModelContextProtocol.Core/Client/McpClientTool.cs
@@ -1,6 +1,5 @@
 using Microsoft.Extensions.AI;
 using ModelContextProtocol.Protocol;
-using System.Collections.ObjectModel;
 using System.Text.Json;
 using System.Text.Json.Nodes;
 
@@ -26,13 +25,6 @@ namespace ModelContextProtocol.Client;
 /// </remarks>
 public sealed class McpClientTool : AIFunction
 {
-    /// <summary>Additional properties exposed from tools.</summary>
-    private static readonly ReadOnlyDictionary<string, object?> s_additionalProperties =
-        new(new Dictionary<string, object?>()
-        {
-            ["Strict"] = false, // some MCP schemas may not meet "strict" requirements
-        });
-
     private readonly McpClient _client;
     private readonly string _name;
     private readonly string _description;
@@ -126,9 +118,6 @@ public sealed class McpClientTool : AIFunction
     /// <inheritdoc/>
     public override JsonSerializerOptions JsonSerializerOptions { get; }
 
-    /// <inheritdoc/>
-    public override IReadOnlyDictionary<string, object?> AdditionalProperties => s_additionalProperties;
-
     /// <inheritdoc/>
     protected async override ValueTask<object?> InvokeCoreAsync(
         AIFunctionArguments arguments, CancellationToken cancellationToken)