export declare class WebhookPoller {
    private readonly _impl;
    constructor(baseUrl: string, apiKey: string, slug: string);
    /** Start the WebSocket connection (no-op for HTTP pollers). */
    start(todoPath: string, log?: (msg: string) => void, workspaceRoot?: string): void;
    /** Tear down any persistent connections. */
    destroy(): void;
    /**
     * Poll once for the next pending task and append it to TODO.md.
     * For WebSocket mode: always returns false (tasks arrive via push).
     */
    pollAndAppend(todoPath: string, workspaceRoot?: string): Promise<boolean>;
    /**
     * Send a JSON frame to the server over the WebSocket connection.
     * No-op (returns false) in HTTP polling mode or when disconnected.
     */
    sendFrame(payload: unknown): boolean;
    /** Pass the VNC password to use when a vnc_session start arrives. */
    setVncPassword(password?: string): void;
    setGitEnabled(enabled: boolean): void;
    setFileBrowserEnabled(enabled: boolean): void;
    setVncEnabled(enabled: boolean): void;
    setRdpEnabled(enabled: boolean): void;
    setRdpSettings(s: {
        host?: string;
        port?: number;
        username?: string;
        password?: string;
        domain?: string;
        guacWsUrl?: string;
    }): void;
    /** Register a callback to fire each time the WS connection is established. */
    setOnConnect(cb: () => void): void;
    /** Register a callback to fire each time a WS-pushed task is appended to TODO.md. */
    setOnTaskAppend(cb: () => void): void;
    /** Register a callback for instant/steer messages (delivered live, not queued). */
    setOnSteer(cb: (text: string, onDelivered: () => void) => void): void;
    setOnCommand(cb: (cmd: string) => void): void;
    setOnMcpUpdate(cb: (entries: Record<string, unknown>) => void): void;
    setOnSkillUpdate(cb: (skills: unknown[]) => void): void;
    setOnExportRequest(cb: (agentId: string) => void): void;
    setOnRestoreRequest(cb: (agentId: string, downloadUrl: string) => void): void;
    setOnExportConfig(cb: (exportEnabled: boolean, exportDailyBackup: boolean, agentId: string) => void): void;
    /** True when backed by a WebSocket connection (vs HTTP polling). */
    get isWebSocket(): boolean;
}