export interface LoadingTip {
    text: string;
    id: string;
    source: 'static' | 'command' | 'skill';
}
export declare function buildTipPool(): LoadingTip[];
export declare function _resetSeenTipsForTesting(): void;
export interface SelectTipOpts {
    startedAt: number;
    now?: number;
    rotateMs?: number;
    warmupMs?: number;
}
export declare function selectTip(pool: readonly LoadingTip[], opts: SelectTipOpts): LoadingTip | null;