/** Per-element ceilings the Discord API enforces. Degradation is truncate/clamp — never silent drop. */
export declare const DISCORD_LIMITS: {
    readonly componentsPerMessage: 40;
    readonly actionRows: 5;
    readonly buttonsPerRow: 5;
    readonly selectOptions: 25;
    readonly selectPlaceholder: 150;
    readonly textDisplayChars: 2000;
    readonly totalTextChars: 4000;
    readonly buttonLabel: 80;
    readonly customId: 100;
    readonly headerText: 256;
};
/** Truncate to max chars, appending an ellipsis marker if the input was longer. Never returns >max. */
export declare function truncateText(text: string, max: number): string;
/** Clamp an array to max items; return the kept items plus how many overflowed (for an overflow signal). */
export declare function clampArray<T>(items: readonly T[], max: number): {
    items: T[];
    overflow: number;
};
/**
 * Truncate text that may contain ``` code fences, then re-balance: if truncation
 * left an odd number of fence delimiters (i.e. a fence was cut open), append a
 * closing fence. The result never exceeds `max` — the closing fence is added by
 * trimming further if needed so the total stays within budget.
 */
export declare function truncateFenced(text: string, max: number): string;
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