/**
 * Token Counter and Validator
 *
 * Provides token counting functionality for templates with estimation
 * and limit validation capabilities.
 */
import type { TokenCountResult } from './types.js';
/**
 * Approximate token count for text
 * Uses character-based estimation when tokenizer is not available
 *
 * Approximation: ~4 characters per token for English text
 * This is a rough estimate - actual token count depends on the tokenizer used
 */
export declare function countTokens(text: string): number;
/**
 * More accurate token count for code
 * Code typically has more tokens per character due to punctuation
 */
export declare function countCodeTokens(code: string): number;
/**
 * Count tokens in an array of strings
 */
export declare function countTokensArray(strings: string[]): number;
/**
 * Validate token count against limit
 */
export declare function validateTokenLimit(tokenCount: number, limit: number, tolerance?: number): {
    withinLimit: boolean;
    warnings: string[];
};
/**
 * Detailed token count result with metadata
 */
export declare function getTokenCountDetails(text: string, isCode?: boolean): TokenCountResult;
/**
 * Check if a file is within token limits
 */
export declare function checkFileTokenLimit(content: string, filePath: string, limits: Record<string, number>): {
    withinLimit: boolean;
    warnings: string[];
};
/**
 * Suggest content reduction strategies
 */
export declare function suggestReduction(tokenCount: number, limit: number): string[];
/**
 * Format token count for display
 */
export declare function formatTokenCount(tokenCount: number): string;
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