/**
 * Token-aware content truncation utility
 *
 * Anthropic MCP Directory enforces a 25,000 token response limit.
 * This utility provides safe truncation with token estimation.
 */
/**
 * Truncate content if it exceeds the token ceiling
 *
 * @param content Content to potentially truncate
 * @returns Truncated content and metadata
 */
export declare function truncateContent(content: string): {
    content: string;
    truncated: boolean;
    truncated_at_chars?: number;
};
/**
 * Estimate token count for a given string
 * Uses conservative 4 chars per token approximation
 *
 * @param text Text to estimate
 * @returns Estimated token count
 */
export declare function estimateTokens(text: string): number;
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