import type { ToolEntry } from './tool-lane-render.js';
interface GroupedSibling {
    kind: 'group';
    toolName: string;
    label: string;
    entries: ToolEntry[];
}
export interface OverflowSibling {
    kind: 'overflow';
    count: number;
    text: string;
}
export declare function addOverflowSynthetic(siblings: Array<ToolEntry | GroupedSibling>, maxVisible: number): Array<ToolEntry | GroupedSibling | OverflowSibling>;
export declare function formatCategoricalOverflow(hidden: Array<ToolEntry | GroupedSibling>): string;
export {};