Email has the highest ROI of any marketing channel. $36 for every $1 spent. Yet most startups treat it as an afterthought - bulk blasts, no personalization, landing in spam folders. This skill covers transactional email that works, marketing automation that converts, deliverability that reaches inboxes, and the infrastructure decisions that scale. Use when: keywords, file_patterns, code_patterns.
5.7
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0
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Backend Development
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The skill provides a clear persona and identifies important email infrastructure patterns and anti-patterns. However, it lacks actionable implementation details - the 'Sharp Edges' table references solutions but provides only incomplete comments rather than actual guidance. The description mentions 'keywords, file_patterns, code_patterns' as usage triggers but these are not defined. While the structure is clean and the domain is valuable, a CLI agent would struggle to implement actual email systems without concrete code examples, configuration samples, or step-by-step procedures for setting up SPF/DKIM/DMARC, implementing queues, or handling bounces. The skill is more of a high-level checklist than an executable implementation guide.
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