/**
 * log10x_top_patterns — v2 layout.
 *
 * Hero MCP tool: "show me what's expensive and help me decide what to
 * drop, mute, or compact." Three pillars over the legacy implementation:
 *   1. Identity-first table + per-pattern cards
 *   2. Inline cost trend chart (24h) for the top-3 + NEW rows
 *   3. Field-variation block from real SIEM events (not slot-cardinality
 *      heuristics) — answers "what does this hash actually group?"
 */
import { z } from 'zod';
import type { EnvConfig } from '../lib/environments.js';
import { type StructuredOutput } from '../lib/output-types.js';
export declare const topPatternsSchema: {
    service: z.ZodOptional<z.ZodString>;
    severity: z.ZodOptional<z.ZodString>;
    timeRange: z.ZodDefault<z.ZodString>;
    limit: z.ZodDefault<z.ZodNumber>;
    offset: z.ZodDefault<z.ZodNumber>;
    analyzerCost: z.ZodOptional<z.ZodNumber>;
    effective_ingest_per_gb: z.ZodOptional<z.ZodNumber>;
    siemScope: z.ZodOptional<z.ZodString>;
    siem_lens: z.ZodOptional<z.ZodEnum<[import("./poc-from-siem.js").RegistrySiemId, ...import("./poc-from-siem.js").RegistrySiemId[]]>>;
    monthly_volume_gb: z.ZodOptional<z.ZodNumber>;
    environment: z.ZodOptional<z.ZodString>;
    verbose: z.ZodDefault<z.ZodBoolean>;
    view: z.ZodOptional<z.ZodDefault<z.ZodLiteral<"summary">>>;
    include: z.ZodDefault<z.ZodEnum<["kept", "dropped", "both"]>>;
    include_chart: z.ZodDefault<z.ZodBoolean>;
};
export declare function executeTopPatterns(args: {
    service?: string;
    severity?: string;
    timeRange: string;
    limit: number;
    offset?: number;
    analyzerCost?: number;
    effective_ingest_per_gb?: number;
    siemScope?: string;
    verbose?: boolean;
    view?: 'summary';
    include?: 'kept' | 'dropped' | 'both';
    include_chart?: boolean;
    siem_lens?: string;
    monthly_volume_gb?: number;
}, env: EnvConfig): Promise<string | StructuredOutput>;