/**
 * Path Validation Utilities (SMI-720)
 *
 * Path traversal prevention validators.
 */
/**
 * Validate file path to prevent path traversal attacks (SMI-720)
 *
 * Ensures the resolved path remains within the allowed root directory.
 *
 * @param path - Path to validate (can be relative or absolute)
 * @param rootDir - Root directory that must contain the path
 * @throws {ValidationError} if path escapes root directory
 *
 * @example
 * ```typescript
 * validatePath('skills/my-skill', '/home/user/.claude')  // OK
 * validatePath('../etc/passwd', '/home/user/.claude')    // Throws ValidationError
 * validatePath('/etc/passwd', '/home/user/.claude')      // Throws ValidationError
 * ```
 */
export declare function validatePath(path: string, rootDir: string): void;
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