import { type ComputeDerivedFieldOverridesOptions, type DerivedItemFieldOverrides, type ReadIndexedParentItemIdInput, type ResolvedDerivedItem } from "@x12i/catalox-contracts/catalog-content.js";
/** Read parent item id from a derived record's indexed envelope. */
export declare function readIndexedParentItemId(record: ReadIndexedParentItemIdInput, indexedKey?: string): string;
/** Merge parent indexed fields with a derived-parent pointer. */
export declare function withDerivedParentIndexed(indexed: Record<string, unknown> | undefined, parentItemId: string, indexedKey?: string): Record<string, unknown>;
/** Compute sparse overrides: fields in `next` that differ from `base`. */
export declare function computeDerivedFieldOverrides(base: Record<string, unknown>, next: Record<string, unknown>, options?: ComputeDerivedFieldOverridesOptions): DerivedItemFieldOverrides;
/** Apply sparse overrides onto parent data (shallow merge). */
export declare function resolveDerivedItemData(parentData: Record<string, unknown>, overrides: DerivedItemFieldOverrides): Record<string, unknown>;
/** Resolve a derived item view from parent data, sparse overrides, and ids. */
export declare function resolveDerivedItem<TData extends Record<string, unknown> = Record<string, unknown>>(input: {
    itemId: string;
    parentItemId: string;
    parentData: Record<string, unknown>;
    overrides: DerivedItemFieldOverrides;
}): ResolvedDerivedItem<TData>;
/** Build a patch that clears listed top-level data fields (generic soft-reset helper). */
export declare function emptyDataFieldsPatch(fieldKeys: readonly string[]): Record<string, unknown>;
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