/**
 * Budget Logger
 *
 * Structured logging for budget tracing and session replay.
 * Captures candidate generation, pruning, verification, and fix commitment events.
 */
import type { BudgetEvent, BudgetLogSummary } from "../output/types.js";
export interface BudgetLogger {
    /** Log a budget event */
    log(event: Omit<BudgetEvent, "timestamp">): void;
    /** Get all logged events */
    getEvents(): BudgetEvent[];
    /** Get aggregated summary statistics */
    getSummary(): BudgetLogSummary;
}
/**
 * Create a budget logger for tracing budget consumption
 */
export declare function createBudgetLogger(): BudgetLogger;
/**
 * Create a no-op logger for when tracing is disabled
 */
export declare function createNoopLogger(): BudgetLogger;
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