email-security SKILL.md skillF
email-security from chunkydotdev/email-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add chunkydotdev/email-skills/email-security@git:20260330.4f1a6dcPins git:20260330.4f1a6dc in mdr.lock. Pin the fingerprint instead.
- Audit grade
- F, 14 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- chunkydotdev/email-skills
- Path
skills/compliance/email-security/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260330.4f1a6dc, committed Mar 30, 2026
- Size
- 26,255 bytes
- Repository stars
- 7
- License
- MIT
Protect email pipelines from injection attacks, phishing, content manipulation, and AI agent exploitation. Use when building inbound email processing, sanitizing email content, detecting phishing or BEC, securing AI agents that read email, or hardening email infrastructure against spoofing and data exfiltration.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Email Security Defend email systems against injection attacks, content manipulation, phishing, and exploitation of AI agents that process email. ## When to use this skill - Building an AI agent or automation that reads and acts on inbound email - Processing user-submitted email content (contact forms, forwarded messages) - Implementing phishing or spam detection for incoming mail - Sanitizing HTML email content before rendering or processing - Protecting against business email compromise (BEC) attacks - Validating URLs and links in email bodies - Hardening an email pipeline against prompt injection - Detecting spoofed or lookalike domains in sender addresses ## Related skills - `domain-authentication` - SPF, DKIM, DMARC setup that prevents exact-domain spoofing - `email-compliance` - CAN-SPAM, GDPR, and legal requirements - `suppression-lists` - managing bounces, complaints, and opt-outs - `inbound-processing` - receiving and parsing incoming email - `bounce-handling` - processing delivery failures --- ## Email as an attack surface …
Read the whole file at its exact version.
How to install
mdr add chunkydotdev/email-skills/email-security@sha256:0df389179e99fa2cThe line at the top of this page pins the label git:20260330.4f1a6dc, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_bbqq4dcl3p6atwrx)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 30, 2026.
Audit of the latest version
- FAIL, critical: No instruction hidden inside an HTML comment (matched: <!-- system: ignore previous -->)
- fail: No prompt-injection phrasing (matched: Disregard previous instructions)
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (26255 bytes)
- pass: No zero-width or bidi control characters
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
chunkydotdev/email-skills · 7 stars · license MIT · pushed 2026-10-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bbqq4dcl3p6atwrx GET https://markdownregistry.com/api/v1/resolve?ref=chunkydotdev/email-skills/email-security GET https://markdownregistry.com/api/v1/blob/0df389179e99fa2c898ab7d03168355349b7c42153449e5d8aa900d486f3a918
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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