/**
 * Sanitization and formatting pure functions. Every display/log surface of
 * dsh-budget goes through these: webhook URLs, alert text, token counts and
 * money amounts. Never log or render a raw config or wire value.
 *
 * @module dsh-budget/estimate/sanitize
 */
/**
 * Make arbitrary text safe for one-line display and logs: strip control and
 * invisible characters, collapse whitespace runs, truncate with an ellipsis.
 *
 * @param input - raw text (possibly hostile).
 * @param maxLength - output length cap (default 200).
 * @returns the sanitized text.
 */
export declare function sanitizeText(input: string, maxLength?: number): string;
/**
 * Redact credentials from a URL for display and logs: the userinfo component
 * (`user:pass@`) is replaced, the rest is kept, and overlong URLs are cut.
 * Query parameters are preserved verbatim — a webhook URL's own secret query
 * tokens are the operator's responsibility to rotate, but the userinfo is
 * always redacted.
 *
 * @param input - raw URL (possibly hostile).
 * @param maxLength - output length cap (default 512).
 * @returns the redacted URL, or '' when it cannot be parsed.
 */
export declare function sanitizeUrl(input: string, maxLength?: number): string;
/** Display-currency options for {@link formatMoney}. */
export interface MoneyFormat {
    /** Currency code placed before the amount (display only). */
    code: string;
    /** Display-currency units per 1 USD (1 = USD). */
    rate: number;
    /** Decimal places. */
    decimals: number;
}
/**
 * Format a USD amount in the configured display currency, deterministically
 * (no locale-dependent grouping): converted by `rate`, rounded to `decimals`
 * places, grouped with commas, prefixed with the currency code.
 *
 * @param usd - amount in USD.
 * @param format - display options.
 * @returns e.g. `USD 1,234.57`; non-finite input renders as `USD 0.00`.
 */
export declare function formatMoney(usd: number, format: Readonly<MoneyFormat>): string;
/**
 * Format a token count compactly: `999` stays as-is, `1234` → `1.23k`,
 * `4_500_000` → `4.50M`.
 *
 * @param tokens - non-negative token count.
 * @returns the compact string.
 */
export declare function formatTokens(tokens: number): string;
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