import type { AgentConfig } from '../../types/config-types.js';
export { computeUsedTokens, contextWindowTokensUsed, buildContextUsageFields, } from './context-usage-fields.js';
export type { ContextUsageApiBreakdown, ContextUsageFields } from './context-usage-fields.js';
export declare function shouldAutoCompact(usedTokens: number, contextLimit: number, threshold: number): boolean;
export declare function contextFullnessFraction(usedTokens: number, contextLimit: number): number;
export declare const DEFAULT_AUTO_COMPACT_THRESHOLD = 0.9;
export declare function safeAutoCompactThresholdFor(model: string): number;
export declare function guardContextOverflow(knownInputTokens: number, maxOutputTokens: number, contextLimit: number, model: string): void;
export declare function resolveAutoCompactThreshold(autoCompact: AgentConfig['autoCompact'], model?: string): number | undefined;