import type { ToolCall } from '../providers/anthropic-direct/types.js';
export declare const SUSPECTED_LOOP_THRESHOLD = 5;
export declare const SUSPECTED_LOOP_WINDOW_SIZE = 20;
export interface SuspectedLoopWindow {
    recent: string[];
    firedFingerprints: Set<string>;
}
export declare function createSuspectedLoopWindow(): SuspectedLoopWindow;
export declare function fingerprintToolCall(call: ToolCall): string;
export interface SuspectedLoopObservation {
    fired: boolean;
    count: number;
}
export declare function countInWindow(recent: readonly string[], fingerprint: string): number;
export declare function observeToolCall(window: SuspectedLoopWindow, fingerprint: string): SuspectedLoopObservation;