import type { FileHeader } from '../orient.types.js';
/**
 * @purpose Parse // @tag: directives from file content before the first import.
 * @invariant Scans only lines before the first `import ` statement.
 * @param content Raw file content.
 * @returns Parsed FileHeader with file, tasks, and consumers fields.
 */
export declare function extractHeader(content: string): FileHeader;