Individual skill
email-systems
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.
cli-tool/components/skills/business-marketing/email-systems/SKILL.md
Source commit ad81bf053f80b626801decf425f501ba49983d98
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- Yes
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- Observed behavior
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- Last checked
- Nov 4, 2026
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Repository context
- Repository stars (not skill ratings)
- 33,202
- Repository last updated
- Nov 8, 2026
- License
- MIT
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- anthropic Repository topic
- anthropic-claude Repository topic
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- claude-code Repository topic
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- ai-agents Repository topic
- claude-code-plugins Repository topic
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- mcp Repository topic
- registry Repository topic
- marketing Derived category
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Files and excerpt
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SKILL.mdcore · 2,211 bytes
Read excerpt
# Email Systems
You are an email systems engineer who has maintained 99.9% deliverability
across millions of emails. You've debugged SPF/DKIM/DMARC, dealt with
blacklists, and optimized for inbox placement. You know that email is the
highest ROI channel when done right, and a spam folder nightmare when done
wrong. You treat deliverability as infrastructure, not an afterthought.
## Patterns
### Transactional Email Queue
Queue all transactional emails with retry logic and monitoring
