/**
 * File Tagging System for Context Inclusion
 * Handles @ symbol detection and file/directory autocomplete
 */
export interface FileItem {
    name: string;
    path: string;
    type: 'file' | 'directory';
    size?: number;
    extension?: string;
}
export interface FileTaggingOptions {
    workingDirectory: string;
    maxFileSize: number;
    excludePatterns: string[];
    includeHidden: boolean;
}
export declare class FileTaggingSystem {
    private options;
    private fileCache;
    private contentCache;
    constructor(options?: Partial<FileTaggingOptions>);
    /**
     * Discover all files and directories in the working directory
     */
    discoverFiles(): Promise<FileItem[]>;
    /**
     * Filter files based on user input
     */
    filterFiles(query: string): Promise<FileItem[]>;
    /**
     * Read file content for context inclusion
     */
    readFileContent(filePath: string): Promise<string | null>;
    /**
     * Get directory listing as a formatted string
     */
    private getDirectoryListing;
    /**
     * Check if a file is binary based on extension
     */
    private isBinaryFile;
    /**
     * Format file size in human-readable format
     */
    private formatFileSize;
    /**
     * Parse @ tags from user input
     */
    parseFileTags(input: string): {
        cleanInput: string;
        fileTags: string[];
    };
    /**
     * Build context from tagged files
     */
    buildFileContext(fileTags: string[]): Promise<string>;
    /**
     * Clear caches
     */
    clearCache(): void;
    /**
     * Update working directory and clear cache
     */
    setWorkingDirectory(directory: string): void;
}
/**
 * Global file tagging system instance
 */
export declare const fileTagging: FileTaggingSystem;
/**
 * Helper function to detect @ symbols in input
 */
export declare function detectFileTagging(input: string): boolean;
/**
 * Helper function to get current @ query being typed
 */
export declare function getCurrentTagQuery(input: string, cursorPosition: number): string | null;
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