ai/src/types/provider-metadata.ts

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import { SharedV3ProviderMetadata } from '@ai-sdk/provider';
import { z } from 'zod/v4';
import { jsonValueSchema } from './json-value';

/**
 * Additional provider-specific metadata that is returned from the provider.
 *
 * This is needed to enable provider-specific functionality that can be
 * fully encapsulated in the provider.
 */
export type ProviderMetadata = SharedV3ProviderMetadata;

export const providerMetadataSchema: z.ZodType<ProviderMetadata> = z.record(
  z.string(),
  z.record(z.string(), jsonValueSchema.optional()),
);