Strip additionalProperties from Gemini function declaration schemas#5
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Tom-Ryder merged 2 commits intoTom-Ryder:mainfrom Mar 26, 2026
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The Gemini API rejects the additionalProperties field in function declaration schemas with HTTP 400. Add a GeminiSchema wrapper that re-encodes JSONSchema identically but omits additionalProperties, recursively handling nested objects, arrays, and anyOf variants.
The Vertex AI rawPredict endpoint specifies the model in the URL path and rejects it in the request body with 'Extra inputs are not permitted'. Re-encode the inner AnthropicRequest with model set to nil so encodeIfPresent skips it.
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Nice find on the additionalProperties rejection. Merging. |
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The Gemini API rejects the additionalProperties field in function
declaration schemas with HTTP 400. Add a GeminiSchema wrapper that
re-encodes JSONSchema identically but omits additionalProperties,
recursively handling nested objects, arrays, and anyOf variants.
I also found an issue with the Vertex endpoint:
The Vertex AI rawPredict endpoint specifies the model in the URL path
and rejects it in the request body with 'Extra inputs are not permitted'.
Re-encode the inner AnthropicRequest with model set to nil so
encodeIfPresent skips it.