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Add `meta` attribute to both annotations, enabling MCP Apps UI metadata (e.g. _meta.ui.resourceUri, _meta.ui.csp) to be declared directly on annotated methods. Meta propagates to tool/resource declarations and to resource content in ReadResourceResult. Signed-off-by: Alexandros Pappas <apappascs@gmail.com>
Append the ability to define "_meta" property in tool, prompt, resource declarations Usage: ``` @mcptool(metaProvider = MyMetaProvider.class) String myTool() { } class MyMetaProvider implements MetaProvider { return Map.of( "openai/widgetPrefersBorder", true, "openai/widgetDomain", 'https://chatgpt.com', "openai/widgetCSP", new WidgetCsp()); } ``` Signed-off-by: Vadzim Shurmialiou <vadzim.shurmialiou@check24.de>
tzolov
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Mar 2, 2026
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@vdm24 , @apappascs , @habuma thank you for the great, joined, effort in designing and implementing this feature
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Rebased, squashed and merged at c7ffe98 |
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Mar 2, 2026
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| * @author Christian Tzolov | ||
| * @author Alexandros Pappas |
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Since here are multiple authors I would suggest to remove them from JavaDoc and keep them in the git log. Here and in 26 other changed files.
Also, it would be nice to write a couple words explaining the class purpose.
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I've updated the javadocs to add the missing hames: #105
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| private static Map<String, Object> parseMeta(String metaJson) { |
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Is this method in use? Also in AsyncStatelessMcpResourceProvider, SyncMcpResourceProvider, SyncStatelessMcpResourceProvider, AbstractMcpToolProvider.
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This PR combines #102 and #83. Both PRs address the need to specify metadata on resources and tools. The key differences:
Stringof JSON, which is non-ideal.Combining these two PRs (and addressing the conflicts from doing so) results in a "best of both" PR.