feat: gracefully handle nullable or unknown types#34
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kalenkevich
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Dec 24, 2025
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Thanks for the tests
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This PR enhances the
toGeminiSchemautility to handle JSON Schema patterns that can cause crashes or undefined behavior. It adds support for:Nullable Fields: Automatically unwraps
anyOfunions containing null (e.g.,Optional[str]), resolving them to the underlying non-null type.Type Inference: Automatically infers type: "object" or type: "array" when the explicit type field is missing but structural properties (like properties, $ref, or items) are present.
These changes ensure compatibility with MCP servers that generate flexible or slightly ambiguous JSON schemas.