export declare function nowISO(): string;
export declare function clampLines(text: string, maxLines: number): string;
/**
 * Replace {{token}} placeholders in a template string.
 * Unknown tokens are left as-is so partial application is safe.
 */
export declare function interpolate(template: string, vars: Record<string, string>): string;
export declare function extractHeadings(md: string, max: number): string;
export declare function regexFromQuery(query: string): RegExp;
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