/**
 * @fileoverview Multi-LLM Provider Metrics Aggregation and Compatibility Testing
 * @module @skillsmith/core/testing/MultiLLMProvider.metrics
 * @see SMI-1523: Configure multi-LLM provider chain
 * @see SMI-2741: Split from MultiLLMProvider.ts to meet 500-line standard
 *
 * Standalone functions for metrics aggregation and skill compatibility testing,
 * extracted to keep MultiLLMProvider.ts within the 500-line limit.
 */
import type { LLMProviderType, ProviderMetrics, SkillCompatibilityResult, LLMRequest, LLMResponse } from './MultiLLMProvider.types.js';
/**
 * Aggregate metrics across all providers into a summary object
 *
 * @param providerMetrics - Map of per-provider metrics
 * @returns Aggregated totals and averages
 */
export declare function aggregateMetrics(providerMetrics: Map<LLMProviderType, ProviderMetrics>): {
    totalRequests: number;
    totalCost: number;
    avgLatencyMs: number;
    avgSuccessRate: number;
    providerBreakdown: Record<LLMProviderType, number>;
};
/**
 * Run a skill compatibility test across enabled providers
 *
 * @param skillId - Skill identifier to test
 * @param enabledProviders - List of enabled providers to test against
 * @param completer - Async function that executes an LLM request
 * @returns Compatibility result with per-provider scores and overall assessment
 */
export declare function runCompatibilityTest(skillId: string, enabledProviders: LLMProviderType[], completer: (request: LLMRequest) => Promise<LLMResponse>): Promise<SkillCompatibilityResult>;
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