/**
 * Bridges a delegated subagent's terminal outcome back to its parent
 * driver via the subagent-result hook. Pure projection helpers live
 * in `delegated-parent-result.ts` so the workflow step-proxy transform
 * doesn't strip them from this file.
 */
import type { RuntimeSubagentResultActionResult } from "#runtime/actions/types.js";
/**
 * Resumes the parent driver's hook with a delegated subagent result.
 * No-op for root sessions.
 */
export declare function notifyDelegatedParentStep(input: {
    readonly result: RuntimeSubagentResultActionResult | undefined;
    readonly serializedContext: Record<string, unknown>;
}): Promise<void>;