AGENT SKILLBY KOSTJA94
Email marketing
AT A GLANCE
Email marketing is an email agent skill from kostja94. Guides email marketing strategy for AI/SaaS products. The kostja94/marketing-skills repository on GitHub has 691 stars and the MIT license. It is also listed under go-to-market. To add it, run npx skills add kostja94/marketing-skills --skill email-marketing
- SOURCE REPOSITORY
- kostja94/marketing-skills (opens GitHub in a new tab)
- REPO STARS
- SOURCE REPOSITORY
- LICENSE
- MIT
- SKILL.MD SIZE
- 5.2 KB117 LINES
QUICK ANSWER
- WHAT IT IS01
- Guides email marketing strategy for AI/SaaS products. Email ROI $36 per dollar spent; open/click rates typically higher than social. Its edge is a particular angle on email marketing, giving the agent tighter constraints than a plain email marketing request.
- INPUTS02
- Context for email marketing: your goals, audience, constraints, and any source material the skill asks for.
- OUTPUT03
- A ready-to-use result for email marketing: the analysis, copy, or recommendations the agent produces.
INSTALL
One command adds this skill from its source repository.
npx skills add kostja94/marketing-skills --skill email-marketingREAD THE SKILL.MD BELOW BEFORE YOU RUN IT. SKILLS INSTRUCT YOUR AGENT.
SKILL.MD
The full file, as published in the source repository. Copy it, download it or open it on GitHub.
ON THIS PAGE · 12
Channels: Email Marketing#
Guides email marketing strategy for AI/SaaS products. Email ROI ~$36 per dollar spent; open/click rates typically higher than social. Covers EDM vs Newsletter, five content types, deliverability (SPF/DKIM/DMARC), and SEO synergy via article delivery.
When invoking: On first use, if helpful, open with 1-2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.
Initial Assessment#
Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read it for audience and content strategy. See content-marketing for content types and formats across channels.
Identify:
- Goal: Retention, conversion, brand reach, or SEO synergy
- Content mix: Onboarding, campaign, announcement, features, newsletter
- List size: Bulk sender rules (5,000+/day) require Gmail/Yahoo compliance
EDM vs Newsletter#
| Type | Purpose | Use |
|---|---|---|
| EDM | Direct marketing; conversion-focused | Promotions, campaigns, announcements; bulk sends |
| Newsletter | Ongoing value; relationship | Industry insights, curated articles; regular cadence |
Combine both: EDM for push; Newsletter for nurture. Cover different stages and goals.
Five Content Types#
| Type | Use |
|---|---|
| Onboarding | Welcome + first-use guidance; 5-7 day sequence; behavior-triggered; drive "Aha!" moment |
| Campaign | Promotions, limited-time; conversion or participation |
| Announcement | Product launch, major update; one-time important notice |
| Features update | New features, improvements; help users adopt |
| Blog/Newsletter | Curated articles, industry insights; sustained touch |
User Best Practices#
| Practice | Guideline |
|---|---|
| Personalization | Segment by behavior, source, stage; boosts open/click |
| Timing | New users: dense; existing: controlled pace; behavior-triggered > calendar-only |
| Welcome series | Send soon after signup; 5-7 emails over days; guide first key action |
| Unsubscribe | One-click required (Gmail/Yahoo); honor within 48h; clear entry |
| Complaint rate | Keep below 0.3%; list hygiene critical |
Content Best Practices#
| Practice | Guideline |
|---|---|
| Subject | One clear topic per email; avoid pure promo |
| Value first | Useful info before promotion |
| CTA | Single primary CTA; clear next step |
| Mobile | 50%+ read on mobile; responsive layout, tappable links |
Deliverability & Domain Config#
Subdomain: Use subdomain (e.g. mail.example.com) for marketing; keep transactional (support@, etc.) on main domain. Isolate risk.
SPF, DKIM, DMARC#
| Protocol | Purpose |
|---|---|
| SPF | Authorizes mail servers for domain |
| DKIM | Cryptographic signature; verifies sender |
| DMARC | Policy for unauthenticated mail; start p=none, then quarantine, then reject over 60-90 days |
Order: SPF first, then DKIM, then DMARC. Gmail/Yahoo require all three for bulk senders (5,000+/day) since Feb 2024.
Advanced: TLS-RPT, MTA-STS, BIMI (brand logo). Postmaster Tools: Monitor deliverability, spam rate, auth status.
Delivery Strategy: Articles + SEO Synergy#
| Article Type | Use |
|---|---|
| Retention | Deep content for existing users; improve retention |
| ToFu | Top of funnel; awareness (trends, concepts, problem framing) |
| MoFu | Middle of funnel; consideration (comparisons, reviews, best practices) |
Dual value: (1) Better email engagement (open, click, stickiness); (2) Drive traffic to article pages from non-search channel; signals to Google that users value content; supports SEO.
Measurement: GA4 email source traffic to article pages; GSC rank/click changes.
Planning Framework#
- Content mix: Allocate onboarding, campaign, announcement, features, newsletter
- Select articles: Pick retention, ToFu, MoFu from blog; prioritize SEO target pages
- Cadence: Stable frequency (weekly/biweekly/monthly); avoid over-sending
- Monitor: Open rate, click rate; GA4 email contribution to article traffic; GSC
Frequency#
| Guideline | Note |
|---|---|
| Baseline | 1 high-value email/week for most brands |
| Peak times | Tue-Thu, 8-11am or 2-4pm (recipient timezone) |
| Segmentation | New vs loyal need different cadence |
| Quality | Relevant, behavior-triggered > calendar volume |
Data: ~36% send 1-3/month; ~30% weekly; daily risks high unsubscribe.
Output Format#
- Content mix (five types)
- EDM vs Newsletter balance
- Deliverability (subdomain, SPF/DKIM/DMARC)
- Article delivery (Retention, ToFu, MoFu, SEO targets)
- Cadence and frequency
- KPI (open, click, GA4 email traffic, GSC)
Related Skills#
- content-marketing: Content types, formats; email as channel in repurposing matrix
- newsletter-signup-generator: Signup form design
- traffic-analysis: Email source attribution, UTM
- analytics-tracking: Email click tracking
- content-strategy: Article selection for email delivery
- integrated-marketing: Email as owned media channel
FAQ
07 QUESTIONS
01What is the Email marketing agent skill?
Guides email marketing strategy for AI/SaaS products. Email ROI $36 per dollar spent; open/click rates typically higher than social. It is listed under email and go-to-market in the 100xLab agent skills directory.
02How do I install Email marketing in Cursor, Claude Code, or Codex?
Run npx skills add kostja94/marketing-skills --skill email-marketing in the project where you want it, then ask your agent for the skill by name. The --skill flag installs only Email marketing, not every skill in the repository.
03What does the Email marketing SKILL.md cover?
The SKILL.md includes sections on Initial Assessment, EDM vs Newsletter, Five Content Types, User Best Practices, Content Best Practices and Deliverability & Domain Config. Read the full text on this page or in plain markdown at /resources/agent-skills/kostja94-marketing-skills--email-marketing--1xnxhe1/raw.
04Which agents can use Email marketing?
Email marketing installs with the cross-agent skills installer (npx skills add), which sets it up for agents such as Claude Code, Cursor and Codex. Each agent loads the SKILL.md when you ask for the skill by name.
05What license is Email marketing under?
The kostja94/marketing-skills repository declares the MIT license. Read the license file in the repository before you copy or redistribute the skill.
06Is Email marketing free to use?
Reading, copying and installing Email marketing costs nothing: it is published in a public GitHub repository under the MIT license. Reuse and redistribution follow that license.
07Where is the source of Email marketing?
Email marketing comes from https://github.com/kostja94/marketing-skills, which has 691 GitHub stars. The SKILL.md is at https://github.com/kostja94/marketing-skills/blob/HEAD/skills/channels/owned/email-marketing/SKILL.md. The author is kostja94.
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ATTRIBUTION
Email marketing was written by its original authors and is published in kostja94/marketing-skills (opens GitHub in a new tab) under the MIT license. All rights stay with the original authors.
100xLab did not write, maintain or endorse this skill. This page lists it for discovery. Repo stars belong to the source repository, not to the skill. Review any skill before you install it.