import { BaseToolkit, StructuredToolInterface } from '@langchain/core/tools';
export default class GthFileSystemToolkit extends BaseToolkit {
    tools: StructuredToolInterface[];
    private allowedDirectories;
    constructor(allowedDirectories?: string[]);
    /**
     * Get tools filtered by operation type
     */
    getFilteredTools(allowedOperations: ('read' | 'write')[]): StructuredToolInterface[];
    private normalizePath;
    private isProtectedDirectory;
    private expandHome;
    private validatePath;
    private getFileStats;
    private searchFiles;
    private normalizeLineEndings;
    private createUnifiedDiff;
    private applyFileEdits;
    private formatSize;
    private tailFile;
    private headFile;
    private createTools;
}