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 serejaris/kimi-skills --skill email-newsletter-buildergit clone --depth 1 https://github.com/serejaris/kimi-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/serejaris/kimi-skills/email-newsletter-builder)<a href="https://agentmods.dev/skills/serejaris/kimi-skills/email-newsletter-builder"><img src="https://agentmods.dev/badge/skills/serejaris/kimi-skills/email-newsletter-builder/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/serejaris/kimi-skills/email-newsletter-builder"><img src="https://agentmods.dev/badge/skills/serejaris/kimi-skills/email-newsletter-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00054 | $0.01622 |
| Opus 5 | $0.00027 | $0.00811 |
| Sonnet 5 | $0.00011 | $0.00324 |
| Haiku 4.5 | $0.00005 | $0.00162 |
Grade A, and why
email-newsletter-builder 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 — 229 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Email Newsletter Builder
Generate professional HTML email newsletters fully compatible with Gmail, Outlook, Apple Mail, and other major email clients. Uses table-based layout with inline CSS to ensure consistent rendering across all clients.
Use Cases
- Company internal weekly/monthly reports
- Product update announcements
- Marketing and promotional emails
- Event invitations
- Content digests and article roundups
Layout Types (Semantic Tags)
The layout field is a semantic tag indicating the intended purpose of the email, helping you choose the right combination of sections. The actual email structure is determined by the module types in the sections array.
| Layout Tag | Recommended Sections | Best For |
|---|---|---|
single-column |
hero_banner + text + cta |
General newsletters, announcements |
two-column |
two_column + image_text |
Product comparisons, side-by-side image/text |
hero |
hero_banner + text + cta |
Marketing emails, event invitations |
digest |
Multiple article_card |
Content digests, article roundups |
Supported Content Modules
| Module Type | Description |
|---|---|
hero_banner |
Full-width banner image with optional overlay title text |
text |
Plain text paragraph with optional heading |
image_text |
Image and text side by side |
cta |
Call-to-action button |
divider |
Horizontal separator line |
quote |
Blockquote |
article_card |
Article card (image + title + excerpt + link) |
two_column |
Two-column content area |
Workflow
Step 1: Gather User Requirements
Collect the following information from the user:
- Email purpose: Weekly report? Announcement? Marketing? (Determines layout recommendation)
- Content structure: What modules are needed? (Headings, body text, images, buttons, etc.)
- Brand style: Primary color, logo, company name
- Specific content: Text, image URLs, and button links for each module
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 · 229 lines · 54 tokens per session scan A dad4b590aeca
email-newsletter-builder is a skill published in the GitHub repository serejaris/kimi-skills (6 stars, last pushed 1mo ago), licensed MIT. It adds 54 tokens to every session and 1,622 once invoked, about $0.0003 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.
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