/**
 * Cost Optimizer — Analyze test suite reports and recommend cost savings.
 *
 * Scans report directories, identifies expensive tests, finds duplicates,
 * suggests model downgrades, caching opportunities, and batching strategies.
 */
import type { SuiteResult } from './types';
export interface CostOptimizationReport {
    current_monthly_estimate: number;
    recommendations: CostRecommendation[];
    estimated_after_optimization: number;
    savings_percentage: number;
    test_costs: TestCostEntry[];
}
export interface CostRecommendation {
    type: 'model_downgrade' | 'caching' | 'duplicate_removal' | 'batching' | 'unused_removal';
    description: string;
    affected_tests: string[];
    estimated_savings: number;
    confidence: 'high' | 'medium' | 'low';
}
export interface TestCostEntry {
    name: string;
    model: string;
    cost_per_run: number;
    monthly_estimate: number;
    input_tokens: number;
    output_tokens: number;
    runs_per_month: number;
}
export declare function analyzeTestCosts(results: SuiteResult, runsPerMonth?: number): TestCostEntry[];
export declare function findDuplicateTests(results: SuiteResult): string[][];
export declare function suggestModelDowngrades(entries: TestCostEntry[]): CostRecommendation[];
export declare function suggestCaching(entries: TestCostEntry[]): CostRecommendation | null;
export declare function suggestBatching(entries: TestCostEntry[]): CostRecommendation | null;
export declare function optimizeCosts(results: SuiteResult, runsPerMonth?: number): CostOptimizationReport;
export declare function formatCostOptimization(report: CostOptimizationReport): string;
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