import type { RunActivityEntry } from "@polpo-ai/sdk";
export interface UseTaskActivityReturn {
    entries: RunActivityEntry[];
    isLoading: boolean;
    error: Error | null;
    refetch: () => Promise<void>;
}
/**
 * Fetch the full activity history for a task from its run JSONL log.
 * Pass `null` to skip fetching (e.g. when no task is selected).
 *
 * When `pollIntervalMs` is set and > 0, the hook will automatically
 * re-fetch on that interval (useful for live-tailing running tasks).
 *
 * The hook avoids unnecessary re-renders by comparing new data against
 * the current entries (length + last timestamp) before updating state.
 */
export declare function useTaskActivity(taskId: string | null, options?: {
    pollIntervalMs?: number;
}): UseTaskActivityReturn;
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