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Fix _meta properties to use JsonObject (#1341)

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: stephentoub <2642209+stephentoub@users.noreply.github.com>
This commit is contained in:
Copilot 2026-02-21 07:54:06 -05:00 • committed by GitHub
commit d429b0bf64
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2 changed files with 5 additions and 4 deletions
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4
src/ModelContextProtocol.Core/Protocol/Root.cs
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@ -1,5 +1,5 @@
using System.Diagnostics.CodeAnalysis;
using System.Text.Json;
using System.Text.Json.Nodes;
using System.Text.Json.Serialization;
namespace ModelContextProtocol.Protocol;
@ -35,5 +35,5 @@ public sealed class Root
/// This is reserved by the protocol for future use.
/// </remarks>
[JsonPropertyName("_meta")]
public JsonElement? Meta { get; set; }
public JsonObject? Meta { get; set; }
}

5
tests/ModelContextProtocol.Tests/Protocol/RootTests.cs
View file

@ -1,5 +1,6 @@
using ModelContextProtocol.Protocol;
using System.Text.Json;
using System.Text.Json.Nodes;
namespace ModelContextProtocol.Tests.Protocol;
@ -12,7 +13,7 @@ public static class RootTests
{
Uri = "file:///home/user/project",
Name = "My Project",
Meta = JsonDocument.Parse("""{"custom":"data"}""").RootElement.Clone()
Meta = new JsonObject { ["custom"] = "data" }
};
string json = JsonSerializer.Serialize(original, McpJsonUtilities.DefaultOptions);
@ -22,7 +23,7 @@ public static class RootTests
Assert.Equal("file:///home/user/project", deserialized.Uri);
Assert.Equal("My Project", deserialized.Name);
Assert.NotNull(deserialized.Meta);
Assert.Equal("data", deserialized.Meta.Value.GetProperty("custom").GetString());
Assert.Equal("data", (string?)deserialized.Meta["custom"]);
}
[Fact]