import type { GraderFn } from "../types.js";
/** Options for the `noHallucinatedNumbers` grader. Integers in the range 1900–2100 are always skipped as years regardless of options. */
export interface NoHallucinatedNumbersOptions {
    /** Relative tolerance for matching numbers (e.g., 0.005 = 0.5%). @default 0.005 */
    readonly tolerance?: number | undefined;
    /** Skip integers with absolute value less than 10 (commonly used as labels, not data). @default true */
    readonly skipSmallIntegers?: boolean | undefined;
}
/**
 * Checks that numbers in output.text are grounded in tool call results.
 * Catches the #1 most dangerous agent failure mode: fabricated numbers.
 *
 * Algorithm:
 * 1. Extract all numbers from output.text
 * 2. Extract all numbers from tool call results
 * 3. For each number in text, check if any tool result number matches within tolerance
 * 4. Report hallucinated numbers (text numbers with no source in tool results)
 */
export declare function noHallucinatedNumbers(options?: NoHallucinatedNumbersOptions): GraderFn;
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