/** SDK-owned platform module. This implementation is maintained in goodvibes-sdk. */
import type { BackgroundProcess } from '../../../tools/shared/process-manager.js';
import type { ProcessNode } from '../types.js';
/** Last non-empty stdout line, already tracked on the record, no new emission needed. */
export declare function lastOutputLine(stdout: readonly string[]): string | undefined;
/**
 * BackgroundProcess → ProcessNode. Silent source (no bus emission): liveness
 * rides the registry tick; currentActivity is the last stdout line the
 * ProcessManager already buffers.
 */
export declare function adaptBackgroundProcess(record: BackgroundProcess, now: number): ProcessNode;
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