/**
 * Token budget utilities — advisory only.
 *
 * Provides token estimates so the LLM can decide whether to read
 * full text or request specific sections incrementally.
 * No hard truncation — the LLM manages its own context window.
 */
/** Rough token estimate: ~4 characters per token for English text. */
export declare function estimateTokens(text: string): number;
/** Estimate tokens for each section and compute totals. */
export declare function estimateSectionTokens(sections: Record<string, string>): {
    perSection: Record<string, number>;
    total: number;
};
/**
 * Build an advisory note about token usage relative to budget.
 * Returns null if content is within budget.
 */
export declare function tokenBudgetAdvisory(estimatedTokens: number, maxTokens: number): string | null;
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