/**
 * Cost Budget Enforcement — Per-test, per-suite, per-day budgets.
 */
import type { AgentTrace } from './types';
export interface BudgetConfig {
    per_test?: number;
    per_suite?: number;
    per_day?: number;
    alert_threshold?: number;
}
export interface BudgetCheck {
    within_budget: boolean;
    test_cost: number;
    suite_cost: number;
    daily_cost: number;
    violations: BudgetViolation[];
    warnings: BudgetWarning[];
}
export interface BudgetViolation {
    type: 'per_test' | 'per_suite' | 'per_day';
    limit: number;
    actual: number;
    message: string;
}
export interface BudgetWarning {
    type: 'per_test' | 'per_suite' | 'per_day';
    limit: number;
    actual: number;
    threshold: number;
    message: string;
}
/**
 * Get the total cost spent today.
 */
export declare function getDailyCost(): number;
/**
 * Record a cost expenditure for today.
 */
export declare function recordCost(amount: number): void;
/**
 * Check a trace against budget limits.
 */
export declare function checkBudget(trace: AgentTrace, suiteCostSoFar: number, budget: BudgetConfig): BudgetCheck;
/**
 * Format budget check results for CLI.
 */
export declare function formatBudgetCheck(check: BudgetCheck): string;
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