import { SkillInfo } from '../types';
/**
 * Checks if a directory contains a SKILL.md file.
 */
export declare function hasSkillMd(dirPath: string): Promise<boolean>;
/**
 * Checks if a directory is a grouping directory (contains subdirectories with SKILL.md).
 */
export declare function isGroupingDir(dirPath: string): Promise<boolean>;
/**
 * Walks the skills tree and discovers all skills.
 * Returns skills and any validation warnings.
 */
export declare function walkSkillsTree(root: string): Promise<{
    skills: SkillInfo[];
    warnings: string[];
}>;
/**
 * Formats validation warnings for display.
 */
export declare function formatValidationWarnings(warnings: string[]): string;
/**
 * Copies the skills directory to the destination, preserving structure.
 * Creates the destination directory if it doesn't exist.
 */
export declare function copySkillsDirectory(srcDir: string, destDir: string): Promise<void>;