Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/fabioc-aloha/Alex_Skill_Mallnpx agentmods add skills/fabioc-aloha/alex_skill_mall/md-to-emlWrote 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/fabioc-aloha/alex_skill_mall/md-to-eml)<a href="https://agentmods.dev/skills/fabioc-aloha/alex_skill_mall/md-to-eml"><img src="https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/md-to-eml/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/fabioc-aloha/alex_skill_mall/md-to-eml"><img src="https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/md-to-eml.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 | $0.00023 | $0.01730 |
| Opus 5 | $0.00012 | $0.00865 |
| Sonnet 5 | $0.00005 | $0.00346 |
| Haiku 4.5 | $0.00002 | $0.00173 |
Grade A, and why
md-to-eml 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 8d 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 — 222 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Markdown to Email Conversion
Write in Markdown, send as professional email — works in any email client
Staleness Watch: Recheck external API and tool URLs before release or after upstream changes.
Convert Markdown documents with YAML frontmatter into RFC 5322-compliant .eml files ready for governance, newsletter, and stakeholder communication workflows.
When to Use
- Sending formatted content via email clients (Outlook, Thunderbird, etc.)
- Newsletter or governance communication from Markdown sources
- Generating test emails for review before batch sending
- Converting documentation into distributable email format
- Creating email templates with consistent branding
- Stakeholder updates with embedded charts or diagrams
Supported Formatting
| Format | Status | Notes |
|---|---|---|
| Headings | ✅ | H1-H6 with inline styles |
| Bold/Italic | ✅ | Standard emphasis |
| Links | ✅ | Clickable hyperlinks |
| Images | ✅ | CID embedded as attachments |
| Code blocks | ✅ | Monospace, gray background |
| Inline code | ✅ | Highlighted |
| Tables | ✅ | HTML tables with borders |
| Blockquotes | ✅ | Indented with border |
| Lists | ✅ | Ordered and unordered |
| Mermaid diagrams | ⚠️ | Table fallback (no JS in email) |
| Emoji | ✅ | Unicode preserved |
| Horizontal rules | ✅ | Styled dividers |
Key Features
| Feature | Details |
|---|---|
| YAML frontmatter | Maps to RFC 5322 headers (To, From, Subject, CC, Reply-To) |
| Email-safe HTML | Inline CSS with table-based layout (no <style> blocks) |
| Mermaid fallback | Diagrams converted to ASCII table representation (email-safe) |
| CID images | Local images embedded as base64 multipart MIME attachments |
| Emoji preservation | Subject and body emoji render correctly across clients |
| Test mode | --test flag overrides recipients for safe preview |
Usage
# Basic conversion
node .github/muscles/md-to-eml.cjs newsletter.md
# With test recipient override (safe preview)
node .github/muscles/md-to-eml.cjs newsletter.md --test --test-to [email protected]
# Embed images as CID attachments
node .github/muscles/md-to-eml.cjs update.md --inline-images
# Debug mode (saves intermediate HTML)
node .github/muscles/md-to-eml.cjs update.md --debug
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.
- 8d ago First seen · 222 lines · 23 tokens per session scan A 67d17d6188a4
md-to-eml is a skill published in the GitHub repository fabioc-aloha/Alex_Skill_Mall (4 stars, last pushed yesterday), licensed MIT. It adds 23 tokens to every session and 1,730 once invoked, about $0.0001 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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