import { z } from 'zod';
import type { ElsClient } from '../elsClient.js';
import type { ToolResult } from '../types.js';
export declare const versionRegressionInputShape: {
    baselineVersion: z.ZodString;
    candidateVersion: z.ZodString;
    serviceName: z.ZodOptional<z.ZodString>;
    windowDays: z.ZodDefault<z.ZodNumber>;
};
export declare const versionRegressionToolDef: {
    name: string;
    title: string;
    description: string;
    inputShape: {
        baselineVersion: z.ZodString;
        candidateVersion: z.ZodString;
        serviceName: z.ZodOptional<z.ZodString>;
        windowDays: z.ZodDefault<z.ZodNumber>;
    };
};
type Args = {
    baselineVersion: string;
    candidateVersion: string;
    serviceName?: string;
    windowDays: number;
};
export declare function handleVersionRegression(args: Args, client: ElsClient): Promise<ToolResult>;
export {};
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