type Encoding = 'cl100k_base' | 'o200k_base';
export declare function countTokens(text: string, encoding?: Encoding): number;
export declare function countTokensBatch(texts: string[], encoding?: Encoding): number[];
declare const CATEGORIES: readonly ["systemPrompt", "userInput", "agentText", "toolCalls", "toolResults", "skills"];
type Category = typeof CATEGORIES[number];
export declare class TokenLedger {
    private counts;
    private _apiInput;
    private _apiOutput;
    constructor();
    add(category: Category | string, text: string): number;
    set(category: Category | string, tokens: number): void;
    get(category: Category | string): number;
    setApiUsage(input: number, output: number): void;
    getApiInput(): number;
    getApiOutput(): number;
    setLastTurnInput(input: number): void;
    getLastTurnInput(): number;
    total(): number;
    getAll(): Record<string, number>;
    format(contextTotal?: number, contextPct?: number): string;
    reset(): void;
}
export {};
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