/**
 * Markdown report renderers for log10x_investigate.
 *
 * Two shapes:
 *   - Acute-spike: root cause + causal chain + verification commands
 *   - Drift: slope summary + co-drifter cohort + historical investigation window
 *
 * Empty-result format is handled by the caller via renderEmpty().
 */
import type { CorrelationResult } from './correlate.js';
import type { DriftResult } from './drift.js';
export interface AcuteSpikeReportInput {
    investigationId: string;
    anchor: string;
    startingPoint: string;
    inputType: string;
    service?: string;
    environment: string;
    inflectionTimestamp: number;
    windowLabel: string;
    metricsEnv: string;
    reporterTier: 'edge' | 'cloud' | 'unknown';
    metricPrimitive: 'event_count' | 'bytes';
    noiseFloor: number;
    modeDetection: string;
    correlation: CorrelationResult;
    retrieverFallback: 'disabled' | 'unavailable' | 'stage_1_only' | 'stage_1_and_2' | 'not_run';
    depth: string;
    /** Surfaced when the Reporter doesn't emit the event-count metric and the tool auto-fell back to bytes. */
    metricWarning?: string;
}
export interface DriftReportInput {
    investigationId: string;
    anchor: string;
    startingPoint: string;
    inputType: string;
    service?: string;
    environment: string;
    windowLabel: string;
    metricsEnv: string;
    reporterTier: 'edge' | 'cloud' | 'unknown';
    metricPrimitive: 'event_count' | 'bytes';
    driftThresholdApplied: number;
    drift: DriftResult;
}
export declare function renderAcuteSpikeReport(input: AcuteSpikeReportInput): string;
export declare function collectPatternsReferenced(anchor: string, correlation: CorrelationResult): string[];
export declare function renderDriftReport(input: DriftReportInput): string;
export declare function collectDriftPatternsReferenced(anchor: string, drift: DriftResult): string[];
export declare function renderEmpty(startingPoint: string, windowLabel: string, investigationId: string, noiseFloor: number, anchor?: string, service?: string): string;