fix(llm): preserve native continuation metadata (#28678)
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@@ -42,10 +42,15 @@ const providerMetadata = (value: unknown): ProviderMetadata | undefined => {
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return Object.keys(result).length === 0 ? undefined : result
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}
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// Stored AI SDK parts historically kept provider-owned continuation metadata in
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// `providerOptions`; native parts now use `providerMetadata` directly.
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const partProviderMetadata = (part: Record<string, unknown>) =>
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providerMetadata(part.providerMetadata) ?? providerMetadata(part.providerOptions)
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const textPart = (part: Record<string, unknown>) => ({
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type: "text" as const,
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text: typeof part.text === "string" ? part.text : "",
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providerMetadata: providerMetadata(part.providerOptions),
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providerMetadata: partProviderMetadata(part),
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})
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const mediaPart = (part: Record<string, unknown>) => {
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@@ -68,7 +73,7 @@ const toolResult = (part: Record<string, unknown>) => {
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result: "value" in output ? output.value : output,
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resultType: type,
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providerExecuted: typeof part.providerExecuted === "boolean" ? part.providerExecuted : undefined,
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providerMetadata: providerMetadata(part.providerOptions),
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providerMetadata: partProviderMetadata(part),
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})
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}
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@@ -80,7 +85,7 @@ const contentPart = (part: unknown) => {
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return {
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type: "reasoning" as const,
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text: typeof part.text === "string" ? part.text : "",
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providerMetadata: providerMetadata(part.providerOptions),
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providerMetadata: partProviderMetadata(part),
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}
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if (part.type === "tool-call")
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return ToolCallPart.make({
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@@ -88,7 +93,7 @@ const contentPart = (part: unknown) => {
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name: typeof part.toolName === "string" ? part.toolName : "",
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input: part.input,
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providerExecuted: typeof part.providerExecuted === "boolean" ? part.providerExecuted : undefined,
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providerMetadata: providerMetadata(part.providerOptions),
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providerMetadata: partProviderMetadata(part),
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})
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if (part.type === "tool-result") return toolResult(part)
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throw new Error(`Native LLM request adapter does not support ${String(part.type)} content parts`)
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