export declare const WAIT_GUARD_MARKER = "[REPEATED WAIT TOOL - END TURN]";
export declare const WAIT_GUARD_WARNING = "\n[REPEATED WAIT TOOL - END TURN]\n\nYou have already called a wait tool 2 times in this turn. Its result instructed you to end the turn \u2014 do not call it again.\n\nSTOP calling tools. Respond to the user in plain text and end your turn. The next distinct external user message resumes normal continuation.\n";
export declare const LOOP_GUARD_WARNING = "\n[REPEATED TOOL CALLS - STOP]\n\nYou have issued the exact same tool call with identical arguments 3 times in a row and received identical results. This is an infinite loop and you are making no progress.\n\nSTOP repeating this call. Instead:\n1. Reconsider what you are looking for; the result above already contains what this call can tell you.\n2. If you need different information, make a DIFFERENT call (different path, pattern, or tool).\n3. If the task is actually done, produce your final answer now instead of calling more tools.\n";
export interface ToolLoopGuardHook {
    'tool.execute.before': (input: {
        tool: string;
        sessionID?: string;
        callID?: string;
    }, output: {
        args?: unknown;
    }) => Promise<void>;
    'tool.execute.after': (input: {
        tool: string;
        sessionID?: string;
        callID?: string;
    }, output: {
        output: unknown;
        metadata?: unknown;
    }) => Promise<void>;
    observeNewUserMessage(sessionID: string, messageID: string): void;
    resetTurn(sessionID: string): void;
    resetSession(sessionID: string): void;
    resetForTests(): void;
}
export declare function createToolLoopGuardHook(): ToolLoopGuardHook;