export interface TemplateSkillSync {
    added: string[];
    updated: string[];
    removed: string[];
    backupDir: string | null;
}
/**
 * Bring every skill Jinn ships back to the template, add the new ones, and drop the
 * retired ones. Anything the template does not ship — a skill the user wrote, `org/`,
 * `knowledge/`, `CLAUDE.md`, `config.yaml` values, `skills.json` — is left alone.
 *
 * The whole change is planned before a single byte is written, so a destination that
 * would escape `<home>/skills` aborts the run instead of half-applying it.
 */
export declare function syncTemplateSkills(options: {
    instanceHome: string;
    templateDir: string;
    packageVersion: string;
}): TemplateSkillSync;
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