Universal brand guideline engine for producing, reviewing, and suggesting brand-compliant marketing materials for ANY company. Use this skill whenever a task involves brand identity, visual consistency, marketing collateral, or corporate design standards. Triggers include: brand guidelines, brand book, visual identity, corporate identity, brand compliance, brand review, brand audit, marketing materials, social media copy, poster design, banner design, PPT template, presentation template, company brochure, brand colors, typography guidelines, tone of voice, brand voice, logo usage, brand assets, style guide, design system, marketing collateral, campaign materials, brand consistency check. Also trigger when a user mentions producing materials like posters, banners, social posts, company introductions, pitch decks, brochures, flyers, email templates, or video storyboards and wants them to follow a specific brand look-and-feel. Even if the user doesn't say "brand guideline" explicitly, use this skill when any visual or verbal consistency with a company identity is implied.