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Add structured output/output schema support for server-side tools. (#480)

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* Add structured output/output schema support for server-side tools.

* Address feedback.

* Add McpServerToolAttribute.UseStructuredContent

---------

Co-authored-by: Stephen Toub <stoub@microsoft.com>
This commit is contained in:
Eirik Tsarpalis 2025-06-06 08:20:12 +01:00 • committed by GitHub
commit fa017c04c3
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1 changed files with 310 additions and 20 deletions
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9
src/ModelContextProtocol.Core/Server/McpServerToolAttribute.cs
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@ -240,4 +240,13 @@ public sealed class McpServerToolAttribute : Attribute
get => _readOnly ?? ReadOnlyDefault;
set => _readOnly = value;
}
/// <summary>
/// Gets or sets whether the tool should report an output schema for structured content.
/// </summary>
/// <remarks>
/// When enabled, the tool will attempt to populate the <see cref="Tool.OutputSchema"/>
/// and provide structured content in the <see cref="CallToolResponse.StructuredContent"/> property.
/// </remarks>
public bool UseStructuredContent { get; set; }
}