/** File-content detection shared by the hosted-search preflight. */
/** Structural signature of Core's recursive file-content helper. */
export type ContentHasFile = (content: readonly unknown[]) => boolean;
/**
 * Prefer Core's official recursive predicate when the installed release exports
 * it. The structural fallback retains rc.2/rc.1 compatibility and follows the
 * same `tool-result.content` recursion so file context always fails closed.
 */
export declare function contentHasFileCompat(content: readonly unknown[], official?: ContentHasFile | undefined): boolean;
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