/**
 * Tracker de performance por tool. Se incrementa en cada executeInner call.
 * In-memory, se resetea al reiniciar sq.
 */
interface ToolStat {
    name: string;
    calls: number;
    totalMs: number;
    maxMs: number;
    errors: number;
}
export declare function trackToolCall(name: string, durationMs: number, isError: boolean): void;
export declare function getToolStats(): ToolStat[];
export declare function resetToolStats(): void;
export {};
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