mcp: set content to marshaled output #398
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The ToolHandler constructed by ToolFor sets the result's Content to the marshaled output, following the spec's suggestion. See https://modelcontextprotocol.io/specification/2025-06-18/server/tools#structured-content. Also, set StructuredContent to the marshaled RawMessage to avoid a double marshal. Fixes modelcontextprotocol#391.
findleyr
approved these changes
Sep 3, 2025
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The ToolHandler constructed by ToolFor sets the result's Content to the marshaled output, following the spec's suggestion.
See https://modelcontextprotocol.io/specification/2025-06-18/server/tools#structured-content.
Also, set StructuredContent to the marshaled RawMessage to avoid a double marshal.
Fixes #391.