/**
 * ┌─────────────────────────────────────────────────────────────────────────┐
 * │ COUNT PDF PAGES TOOL - MCP Tool Implementation                          │
 * ├─────────────────────────────────────────────────────────────────────────┤
 * │ Filename: count-pages.tool.ts                                           │
 * │ Language: TypeScript                                                     │
 * │ MCP Server: PDF Operations Server                                       │
 * │                                                                          │
 * │ Purpose:                                                                 │
 * │   Implements an MCP tool that counts the total number of pages in a     │
 * │   PDF file. Provides quick page count without full text extraction.     │
 * │                                                                          │
 * │ Why this tool exists:                                                   │
 * │   - Enables AI to quickly determine PDF length                          │
 * │   - Useful for estimating processing time                               │
 * │   - Helps decide whether to process entire document                     │
 * │   - Foundation for page-range based operations                          │
 * │                                                                          │
 * │ MCP Tool Information:                                                    │
 * │   Tool Name: count-pdf-pages                                            │
 * │   Category: pdf-operations                                              │
 * │   Input: { filePath: string }                                           │
 * │   Output: { pageCount: number, filePath: string }                       │
 * │                                                                          │
 * │ Dependencies:                                                            │
 * │   - @modelcontextprotocol/sdk: MCP server SDK                           │
 * │   - zod: Input validation and schema definition                         │
 * │   - ../utils/pdf-utils: PDF parsing and validation                      │
 * │                                                                          │
 * │ Author: PDF MCP Team                                                    │
 * │ Created: 2025-10-29                                                      │
 * │ Version: 1.0.0                                                           │
 * └─────────────────────────────────────────────────────────────────────────┘
 */
import { z } from 'zod';
import type { PageCountResult } from '../types.js';
/**
 * Zod schema for count-pdf-pages tool input validation
 */
export declare const CountPagesInputSchema: {
    filePath: z.ZodString;
};
/**
 * Zod schema for count-pdf-pages tool output
 */
export declare const CountPagesOutputSchema: {
    pageCount: z.ZodNumber;
    filePath: z.ZodString;
};
/**
 * Counts the total number of pages in a PDF file
 *
 * @param filePath - Path to the PDF file
 * @returns Object containing page count and file path
 * @throws Error if file cannot be read or is not a valid PDF
 */
export declare function countPDFPages(filePath: string): Promise<PageCountResult>;
/**
 * Tool handler for count-pdf-pages
 * Formats the result for MCP protocol
 */
export declare const countPagesToolHandler: ({ filePath }: {
    filePath: string;
}) => Promise<{
    content: {
        type: "text";
        text: string;
    }[];
    structuredContent: PageCountResult;
}>;
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