import type { EngineScore } from '../types.js';
/** The marker appended to a wider-estimate engine's line. */
export declare const VARIANCE_MARKER = "*";
/**
 * True when this engine's score is a wider estimate: it actually retrieved and
 * has high run-to-run retrieval variance. The retrieval gate is the honesty
 * point - an answer that ran no search cannot have "rewritten your prompt
 * before searching", whether it was parametric or grounded-in-name-only (rule
 * #6). A grounded score with no `retrievedAnswers` count predates the
 * measurement, so it keeps the old reading.
 */
export declare function isWiderEstimate(e: EngineScore): boolean;
/**
 * "searched in 1 of 8 answers" - shown when a grounded engine did NOT retrieve
 * on every answer. Empty when it retrieved on all of them (nothing to
 * disclose) or when the count was never measured. Without this the reader sees
 * "grounded" and assumes every answer was retrieval-backed.
 */
export declare function retrievalLine(e: EngineScore): string;
/**
 * The honest caveat for `count` wider-estimate engines, singular/plural aware.
 * Empty string when none - callers omit the note entirely.
 */
export declare function varianceNote(count: number): string;