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.NET: fix: include MessageId in AGUIToolMessage to ChatMessage transformation #3367

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.NET: fix: include MessageId in AGUIToolMessage to ChatMessage transformation #3367

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e9a1086
fix: include MessageId in AGUIToolMessage to ChatMessage transformation
MaciejWarchalowski Jan 22, 2026
3852a9f
Merge branch 'main' into agui-tool-message-transformation-3365
MaciejWarchalowski Jan 28, 2026
f009add
Merge branch 'main' into agui-tool-message-transformation-3365
MaciejWarchalowski Feb 4, 2026
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3 changes: 2 additions & 1 deletion dotnet/src/Microsoft.Agents.AI.AGUI/Shared/AGUIChatMessageExtensions.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,8 @@ public static IEnumerable<ChatMessage> AsChatMessages(
new FunctionResultContent(
toolMessage.ToolCallId,
result)
]);
])
{ MessageId = message.Id };
break;
}

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4 changes: 4 additions & 0 deletions dotnet/tests/Microsoft.Agents.AI.AGUI.UnitTests/AGUIChatMessageExtensionsTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -286,6 +286,7 @@ public void AsChatMessages_WithToolMessage_DeserializesResultCorrectly()
FunctionResultContent result = Assert.IsType<FunctionResultContent>(message.Contents[0]);
Assert.Equal("call_abc", result.CallId);
Assert.NotNull(result.Result);
Assert.Equal("msg1", message.MessageId);
}

[Fact]
Expand All @@ -310,6 +311,7 @@ public void AsChatMessages_WithEmptyToolContent_CreatesNullResult()
FunctionResultContent result = Assert.IsType<FunctionResultContent>(message.Contents[0]);
Assert.Equal("call_def", result.CallId);
Assert.Equal(string.Empty, result.Result);
Assert.Equal("msg1", message.MessageId);
}

[Fact]
Expand All @@ -334,6 +336,7 @@ public void AsChatMessages_WithToolMessageWithoutCallId_TreatsAsRegularMessage()
Assert.Equal(ChatRole.Tool, message.Role);
var resultContent = Assert.IsType<FunctionResultContent>(message.Contents.First());
Assert.Equal(string.Empty, resultContent.CallId);
Assert.Equal("msg1", message.MessageId);
}

[Fact]
Expand Down Expand Up @@ -423,6 +426,7 @@ public void AsChatMessages_WithFunctionCallContainingCustomType_SerializesCorrec
Assert.Equal("Seattle", ((System.Text.Json.JsonElement)toolCallContent.Arguments["location"]!).GetString());
Assert.Equal("fahrenheit", ((System.Text.Json.JsonElement)toolCallContent.Arguments["units"]!).GetString());
Assert.True(toolCallContent.Arguments["includeForecast"] is System.Text.Json.JsonElement j && j.GetBoolean());
Assert.Equal("msg1", message.MessageId);
}

[Fact]
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