Email Systems

dokhacgiakhoa/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.

664 tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

505

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI --skill email-systems

What comes with it

1 290 bytes besides the instruction

sub-skills/email-event-tracking.md

sub-skills/html-email-soup.md

sub-skills/huge-image-emails.md

sub-skills/no-plain-text-fallback.md

sub-skills/template-versioning.md

sub-skills/transactional-email-queue.md

The instruction itself

9 sections, as written by the author

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

🧠 Knowledge Modules (Fractal Skills)

1. Transactional Email Queue

2. Email Event Tracking

3. Template Versioning

4. ❌ HTML email soup

5. ❌ No plain text fallback

6. ❌ Huge image emails

How to use it

Copy the folder

Take dokhacgiakhoa/email-systems from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.