export interface SkillRegistryEntry {
    id: string;
    name: string;
    description: string;
    version: string;
    files: {
        skill: string;
        supplemental?: string[];
    };
}
export interface AvailableSkill {
    id: string;
    name: string;
    description: string;
    version: string;
}
/**
 * List all available skills from the registry.
 * Tries a local `skills/` directory first, then falls back to remote.
 */
export declare function listAvailableSkills(skillsDir?: string): Promise<AvailableSkill[]>;
/**
 * Fetch a skill's files to the local cache directory.
 * @returns The path to the cached SKILL.md
 */
export declare function fetchSkillToCache(skillId: string, cacheDir?: string, skillsDir?: string): Promise<{
    skillPath: string;
}>;
/**
 * Install a skill to all detected agent skill directories.
 *
 * Installs to `~/.agents/skills/vana-{id}/` (universal) and
 * `~/.claude/skills/vana-{id}/` if Claude Code is detected.
 */
export declare function installSkill(skillId: string, skillsDir?: string): Promise<{
    installedPath: string;
    installedPaths: string[];
}>;
/**
 * Read installed skills from all known agent skills directories.
 * Checks both `~/.agents/skills/` and `~/.claude/skills/` for `vana-*` dirs.
 * Deduplicates by skill ID.
 */
export declare function readInstalledSkills(): Promise<Array<{
    id: string;
    path: string;
}>>;
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