import { z } from "zod";
/**
 * Input schema for the `correlation_matrix` MCP tool.
 *
 * Computes pairwise correlations between assets and identifies
 * highly correlated pairs and diversification opportunities.
 */
export declare const correlationMatrixSchema: z.ZodObject<{
    tickers: z.ZodArray<z.ZodString, "many">;
    lookback_days: z.ZodDefault<z.ZodNumber>;
    method: z.ZodDefault<z.ZodEnum<["pearson", "spearman", "kendall"]>>;
}, "strip", z.ZodTypeAny, {
    method: "pearson" | "spearman" | "kendall";
    lookback_days: number;
    tickers: string[];
}, {
    tickers: string[];
    method?: "pearson" | "spearman" | "kendall" | undefined;
    lookback_days?: number | undefined;
}>;
export type CorrelationMatrixInput = z.infer<typeof correlationMatrixSchema>;
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