Email Security Engineer AI Skill - Hyacinthe
Lock down email and collaboration: DMARC at reject, a tuned gateway, account-takeover detection, and a tenant baseline that kills whole attack classes.
Claude skill package instant downloadhyacinthe-email-collaboration-security-engineer.skill
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Example
You: We got hit by an invoice redirect and we are still on DMARC p=none. Give me the plan.
AI: Hyacinthe returns the sender inventory and a staged DMARC path to reject with the quarantine percentages and the vendors that will break, the gateway policy tuning for...
This is not an app. It's an expert you add to your own AI.
Included in your plan
Ask your AI for it by name, or pick it in your dashboard. No need to buy the file.
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// the file itself
The first lines of the file your AI will read, exactly as delivered. Nothing rewritten for the page.
You are Hyacinthe, an Email and Collaboration Security Engineer who builds the sending inventory from DMARC reports before touching SPF, DKIM, BIMI or the Microsoft 365 tenant baseline. You have been activated to move the domain to enforcement safely.
// what's inside
IT and security teams stuck at DMARC p=none with a phishing queue nobody triages and sharing sprawl nobody measured.
// two ways to get it
$12/mo cancel anytime, or $99 a year
$19 one payment
Already on Library or Both? This one is included, no need to buy the file.
// ask your assistant
Go to kissmyskills.com/pages/connector and set up the "Email Security Engineer AI Skill - Hyacinthe" skill (handle: hyacinthe-email-collaboration-security-engineer) for me
Paste it into Claude, ChatGPT, Claude Code, Cursor or Codex. Your AI walks you through connecting KissMySkills (about 3 minutes, 7-day free trial) and loads the skill. What your AI will read →
Drop Hyacinthe into Claude and get an email security engineer who gets you to DMARC reject without breaking payroll, and finds the mailbox rule hiding the fraud.
Hyacinthe defends the channel most breaches still start in: email authentication done properly with SPF flattening and the ten-lookup limit, DKIM key rotation and selector hygiene, and DMARC taken from none to reject without cutting off a legitimate vendor, plus BIMI; gateway and cloud-native tuning on Microsoft Defender for Office 365, Proofpoint, Mimecast and Abnormal; phishing, spear-phishing and business email compromise including invoice redirect and payroll diversion; account takeover detection in Microsoft 365 and Google Workspace covering illicit OAuth consent grants, forwarding rules and the inbox rules that hide the fraud; attachment and URL detonation and its bypasses; collaboration security across Teams, Slack, SharePoint, OneDrive and Google Drive with external sharing sprawl and guest access; the phish-report triage queue; quarantine and release governance; and the tenant hardening baseline that removes whole classes of attack.
What you get
How to install
Download the .skill package, open Claude, paste SKILL.md into your Project Instructions or system prompt, describe your requirement, and Hyacinthe builds the answer. Includes a full worked example so you see exactly what you get.
After checkout, the download link lands in your inbox. Save the .skill file: Claude takes it as it is.
Any AI chat you already use: Claude, ChatGPT, Gemini, Grok, Copilot or another.
Claude: turn on code execution in Settings → Capabilities, then Customize → Skills → + → Create skill → Upload a skill and pick the .skill file. ChatGPT, Gemini and others: open the .skill file like a .zip archive and paste SKILL.md into custom instructions or Project instructions.
Your AI is now configured as a specialist. Ask it anything inside its domain.
No technical knowledge required.
Lock down email and collaboration: DMARC at reject, a tuned gateway, account-takeover detection, and a tenant baseline that kills whole attack classes. Load it once into Claude Projects and you get a configured Email & Collaboration Security Engineer without re-explaining context at the start of every session. This skill is for authorized, defensive security work only. Validate findings in your own environment, follow your rules of engagement and written authorization, and confirm current framework, vendor, and regulatory specifics before you act on them.
Download the .skill package (it contains SKILL.md), then, in Claude, turn on code execution in Settings → Capabilities and add it under Customize → Skills → + → Create skill → Upload a skill (in ChatGPT, Gemini or another AI, open it as a .zip and paste SKILL.md into Project instructions or custom instructions), add your own context and start your first session. Works with Claude, ChatGPT, or any AI chat that accepts system prompts.
Works with Claude (recommended), ChatGPT, Gemini, Perplexity and Copilot, and any AI chat that accepts system prompts. Claude Projects gives the best results.
Without a skill file your AI starts every session as a general assistant. With Hyacinthe loaded it applies Email & Collaboration Security Engineer methodology from the first message, with consistent quality every time. This skill is for authorized, defensive security work only. Validate findings in your own environment, follow your rules of engagement and written authorization, and confirm current framework, vendor, and regulatory specifics before you act on them.
This one and 2,500+ others, inside Claude, ChatGPT, Claude Code, Codex or Cursor. Cancel anytime.
7 days free, every skill