import { type ContextBudget } from '../../domain/compaction/context-budget.js';
export declare function estimateTokens(text: string, charsPerToken?: number): number;
export type CompactionState = ContextBudget['current']['state'];
export declare function recommendCompactionLevel(percentage: number, thresholds: ContextBudget['thresholds']): CompactionState;
export declare function loadBudget(budgetPath: string): Promise<ContextBudget>;
export declare function saveBudget(budgetPath: string, budget: ContextBudget): Promise<void>;
export declare function updateBudgetState(budgetPath: string, estimatedInputTokens: number, estimatedOutputNeed?: number): Promise<ContextBudget>;
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