import type { SubagentObserver } from "#src/observer";
import type { DurableTracker } from "#src/tracker";
/**
 * Polls status files from all living children and merges data into tracker records.
 */
export declare class StatusPoller {
    private tracker;
    private observer?;
    private intervalMs;
    private timer;
    private offsetCache;
    /** Offset tracking for hooks-audit files (cmd harness tool visibility). */
    private hooksAuditOffsetCache;
    /** Maps agentId → warnings already logged */
    private missingFileWarnings;
    constructor(tracker: DurableTracker, observer?: SubagentObserver | undefined, intervalMs?: number);
    /** Start the polling loop. */
    start(): void;
    /** Stop the polling loop. */
    stop(): void;
    /** Check if the poller is currently running. */
    get running(): boolean;
    /**
     * Public setter for interval (stops/restarts if running).
     */
    setInterval(ms: number): void;
    private poll;
    private pollAgent;
    /**
     * Read only new lines since the last poll.
     * Uses cached byte offset for efficiency.
     */
    private readNewLines;
    /**
     * Apply a parsed status file event to the tracker record.
     */
    private applyEvent;
    /**
     * Poll a hooks-audit file for tool execution events (cmd harness).
     *
     * The hooks-audit file is written by cmd's hook system and contains
     * PreToolUse / PostToolUse events with toolName, toolUseId, timestamps.
     */
    private pollHooksAudit;
    /**
     * Clean up a status file after the agent reaches a terminal state.
     * Reads any remaining lines, then deletes the file.
     */
    cleanupAgent(agentId: string): void;
}
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