/**
 * Shared scoring utility used by both index.ts (MCP server) and cli.ts (CLI).
 *
 * v2.3.4: Now includes cost efficiency as a third scoring dimension.
 * Final score = weighted average of security (40%), health (30%), cost efficiency (30%).
 * Cost efficiency = how well your setup uses cheaper models / avoids expensive ones.
 *
 * Cost efficiency scoring:
 *  100 = using exclusively free/cheapest models (gemini-flash, deepseek)
 *   80 = mostly cheap + some mid-tier (gpt-4o, claude-sonnet)
 *   50 = heavy use of mid-tier models
 *   20 = heavy use of expensive models (gpt-4.5-preview)
 *
 * When costs data is not available, falls back to security+health only (50/50 split).
 */
export declare function calculateOverallScore(security: {
    score: number;
}[], health: {
    successRate: number;
}[], costs?: {
    estimatedCostUSD: number;
    pricingModel: string;
}[]): number;
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