/**
 * Skill Loader — loads and validates skills from multiple sources
 *
 * Implements agentskills.io specification with proper YAML parsing and Zod validation.
 *
 * @see https://agentskills.io/specification
 */
import { SkillDefinition, ParsedSkill, SkillSummary } from './types.js';
/**
 * Parse YAML frontmatter from SKILL.md content
 */
export declare function parseSkillContent(content: string): ParsedSkill & {
    error?: string;
};
/**
 * Extract ONLY metadata from SKILL.md without parsing body/sections.
 *
 * Optimized for matimo_list_skills — reads YAML frontmatter only.
 * This avoids the overhead of parsing sections and body content.
 *
 * Returns SkillSummary: name, description, version, license, metadata, source.
 */
export declare function extractSkillMetadata(content: string, source?: 'builtin' | 'user' | 'catalog'): {
    success: boolean;
    metadata?: SkillSummary;
    error?: string;
};
/**
 * SkillLoader reads and validates skills from directories
 */
export declare class SkillLoader {
    private logger;
    /**
     * Load all skills from a directory
     */
    loadSkillsFromDirectory(skillsDir: string, source?: 'builtin' | 'user' | 'catalog'): SkillDefinition[];
    /**
     * Load a single skill by name
     */
    loadSkill(name: string, skillsDir: string, source?: 'builtin' | 'user' | 'catalog'): SkillDefinition | null;
    /**
     * Load a skill resource file (scripts/, references/, assets/)
     */
    loadSkillResource(skillName: string, skillsDir: string, resourcePath: string): string;
}
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