Implement unified part-wise metadata - #85
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msullivan
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May 9, 2026
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| class AnthropicProviderMetadata(types.metadata.ProviderMetadata): |
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Is it worth putting all this in a class, instead of handling a json blob or something? How does it get provided to us by the anthropic SDK?
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That's an excellent question, actually
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The Anthropic SDK does provide types, and then we map from those to ours. Whether or not it's worth it, I'm not sure: on one hand, having a reasoning.signarture is nice, on the other, you as a user will probably never interact with it.
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Put
provider_metadataonParts andMessages. From now on this is how thinking signatures and other similar things are going to roundtrip. There's much more metadata that providers attach per-part, which I'll add in a separate PR.