import type { SkillValidationResult } from '../types/index.js';
/**
 * Check if content looks like a valid kw-os skill file.
 * Must have YAML frontmatter with at least an id or name field,
 * and a meaningful markdown body.
 */
export declare function isValidSkill(content: string): boolean;
/**
 * Validate that a skill file is both structurally valid and safe to install.
 * Returns warnings for suspicious patterns that could indicate malicious content.
 */
export declare function validateSkill(content: string): SkillValidationResult;
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