import type { AiCostEstimateResult, EstimateAiCostInput } from '../../types/index.js';
/**
 * Estimates the AI cost for implementing a spec.
 * Reads the canonical spec.md from planu/specs/, loads pricing from config JSON,
 * and returns a full AiCostEstimateResult with per-model breakdown.
 */
export declare function estimateAiCost(input: EstimateAiCostInput): Promise<AiCostEstimateResult>;
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