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Implement SEP-973: Icons and metadata support for Implementations, Resources, Tools, and Prompts (#802)

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* Initial plan

* Initial plan for SEP-973 implementation

Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>

* Implement SEP-973: Add Icon class and icon support to Implementation, Resource, Tool, and Prompt

Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>

* Complete SEP-973 implementation with documentation and fix property consistency

Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>

* Address code review feedback: improve tests, remove docs, split test files

Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>

* Fix tests to use S.T.J. source generator

* Styling fixes

* Simplify Icons property documentation as suggested in code review

Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>

* Rename Icon.Src property to Icon.Source for more .NET-y naming

Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>

* Add icon support to McpServerTool infrastructure and attributes

Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>

* Cleanup

* Refactor icon tests to use Delegate overload instead of MethodInfo pattern

Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>

* Change Icon.Sizes property from string to IList<string> per spec update

Co-authored-by: jozkee <16040868+jozkee@users.noreply.github.com>

* Add icon support to Prompts and Resources (CreateOptions and Attributes)

Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>

* Add client-server integration tests for Icons and WebsiteUrl

Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>

* Fix nullability warnings

* Revert "Add client-server integration tests for Icons and WebsiteUrl"

This reverts commit f37de15569e54e86a0709121c9bdf80c5045511c.

* More nullability fixes

* Add more tests

* Address code review feedback: add Theme property, fix docs, improve test patterns

Co-authored-by: jozkee <16040868+jozkee@users.noreply.github.com>

* Update Icon tests to exercise Theme property

Co-authored-by: jozkee <16040868+jozkee@users.noreply.github.com>

* Add Theme property assertions to client-server integration tests

Co-authored-by: jozkee <16040868+jozkee@users.noreply.github.com>

* Fix nullability

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: MackinnonBuck <10456961+MackinnonBuck@users.noreply.github.com>
Co-authored-by: Mackinnon Buck <mackinnon.buck@gmail.com>
Co-authored-by: jozkee <16040868+jozkee@users.noreply.github.com>
Co-authored-by: David Cantú <dacantu@microsoft.com>
This commit is contained in:
Copilot 2025-10-08 12:23:01 -07:00 • committed by GitHub
commit f28639119b
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6
src/ModelContextProtocol.Core/Server/AIFunctionMcpServerTool.cs
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@ -121,6 +121,7 @@ internal sealed partial class AIFunctionMcpServerTool : McpServerTool
Description = options?.Description ?? function.Description,
InputSchema = function.JsonSchema,
OutputSchema = CreateOutputSchema(function, options, out bool structuredOutputRequiresWrapping),
Icons = options?.Icons,
};
if (options is not null)
@ -176,6 +177,11 @@ internal sealed partial class AIFunctionMcpServerTool : McpServerTool
newOptions.ReadOnly ??= readOnly;
}
if (newOptions.Icons is null && toolAttr.IconSource is { Length: > 0 } iconSource)
{
newOptions.Icons = [new() { Source = iconSource }];
}
newOptions.UseStructuredContent = toolAttr.UseStructuredContent;
}