Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add minhnv0807/ai-business-skills --skill 14-email-marketinggit clone --depth 1 https://github.com/minhnv0807/ai-business-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/minhnv0807/ai-business-skills/14-email-marketing)<a href="https://agentmods.dev/skills/minhnv0807/ai-business-skills/14-email-marketing"><img src="https://agentmods.dev/badge/skills/minhnv0807/ai-business-skills/14-email-marketing/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/minhnv0807/ai-business-skills/14-email-marketing"><img src="https://agentmods.dev/badge/skills/minhnv0807/ai-business-skills/14-email-marketing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Tool Misuse · line 152 Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00189 | $0.06226 |
| Opus 5 | $0.00095 | $0.03113 |
| Sonnet 5 | $0.00038 | $0.01245 |
| Haiku 4.5 | $0.00019 | $0.00623 |
Grade A, and why
14-email-marketing scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 442 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Email Marketing
Email la kenh so huu — khong phu thuoc thuat toan, khong mat tien tiep can lai nguoi da dang ky.
Thu thap thong tin
Hoi user toi da 4 cau:
- San pham/dich vu gi? Mo ta ngan + doi tuong khach hang.
- Muc tieu email? Thu lead moi, nurture lead cu, ban hang, hay re-engage khach cu?
- Da co list email chua? Bao nhieu subscriber? Da phan loai nhom chua?
- Dang dung tool nao? Brevo, Mailchimp, Kit, hay chua co? Da setup domain chua?
Nguyen tac cot loi
| Nguyen tac | Giai thich |
|---|---|
| Gia tri truoc ban hang | 80% email cung cap gia tri, 20% email ban hang |
| Phan khuc truoc gui | Khong bao gio gui cung 1 email cho toan bo list |
| 1 email = 1 muc dich | Moi email chi co 1 CTA chinh |
| Mobile-first | 70%+ doc email tren dien thoai — thiet ke cho man hinh nho truoc |
| Test lien tuc | A/B test subject line va thoi gian gui moi tuan |
| Ton trong nguoi nhan | Co link unsubscribe ro rang, khong spam |
Cau truc 1 email
| Thanh phan | Gioi han | Vai tro |
|---|---|---|
| Subject line | 50 ky tu (30 ky tu hien thi tren mobile) | Quyet dinh open rate |
| Preview text | 90 ky tu | Bo sung cho subject line, tang open rate |
| Header | Logo + ten thuong hieu | Nhan dien nhanh |
| Body | 150–300 tu (nurture), 100–200 tu (promotion) | Noi dung chinh |
| CTA | 1 CTA chinh, toi da 1 CTA phu | Chuyen doi |
| Footer | Unsubscribe + dia chi + lien he | Tuan thu phap luat |
Cong thuc Subject Line
5 cong thuc hieu qua
| Cong thuc | Vi du | Khi dung |
|---|---|---|
| Curiosity (To mo) | "Dieu 90% nguoi lam sai khi [chủ de]" | TOFU, nurture |
| Benefit (Loi ich) | "[Ket qua] trong [thoi gian] — day la cach" | MOFU, nurture |
| Urgency (Khan cap) | "Con 24h — [uu dai] het han ngay mai" | BOFU, promotion |
| Personalization (Ca nhan) | "[Ten], minh co thu nay cho ban" | Re-engage, VIP |
| Number (So lieu) | "5 buoc de [dat ket qua] — buoc 3 quan trong nhat" | Giao duc, nurture |
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 442 lines · 189 tokens per session scan A 77cac616d5a1
14-email-marketing is a skill published in the GitHub repository minhnv0807/ai-business-skills (572 stars, last pushed 26d ago), licensed MIT. It adds 189 tokens to every session and 6,226 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
Other skills, from other repositories
computer-use
Drive the desktop background-first; escalate on signal.
google-workspace
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simplify-code
Parallel 4-agent cleanup of recent code changes.
himalaya
Himalaya CLI: IMAP/SMTP email from terminal.
apple-reminders
Apple Reminders via remindctl: add, list, complete.
apple-notes
Manage Apple Notes via memo CLI: create, search, edit.