charlieai-co

Generate properly structured, production-grade email HTML. Use this skill whenever creating, editing, or reviewing HTML emails — marketing campaigns, transactional emails, automated flows, newsletters. Covers mobile-first responsive patterns, dark mode handling, Outlook conditional comments, image-to-text ratio for spam filters, preheader optimization, and the structural details that LLMs get catastrophically wrong when generating email HTML from general training data. Trigger on: "design an email", "email HTML", "email template", "responsive email", "email dark mode", "outlook email", "email rendering", or any request to create HTML that will be sent via email.

Production-grade e-commerce email flow architecture. Use this skill whenever building, auditing, or optimizing automated email sequences for online stores (welcome series, abandoned cart, post-purchase, win-back). Contains operational knowledge from sending 1M+ emails/day — timing, suppression rules, conflict priority, IP pool strategy, compliance requirements, and the mistakes that destroy deliverability. Trigger on: "set up email flows", "email automation", "abandoned cart emails", "welcome sequence", "win-back campaign", "email deliverability", "flow architecture", or any request involving automated e-commerce email sequences.