import type { DarwinTrajectory } from './types.js';
export type RewardHackKind = 'gold-read' | 'verification-tamper' | 'sandbox-escape';
export interface RewardHackFinding {
    kind: RewardHackKind;
    /** The offending path/argument fragment. */
    detail: string;
    /** The tool that performed the offending action. */
    tool: string;
}
/**
 * Run the deterministic reward-hacking monitor over a single trajectory.
 * Returns all findings (empty ⇒ clean). Pure function of the trajectory.
 */
export declare function detectRewardHack(t: DarwinTrajectory): RewardHackFinding[];
/** True iff the trajectory shows ANY reward-hacking signal. */
export declare function isRewardHacked(t: DarwinTrajectory): boolean;
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