15 skills · Open source · MIT license

Email Skills
for AI Agents

Expert-level email marketing skills you can drop into Claude, Codex, Cursor, or any AI agent. Deliverability, compliance, copywriting, automation, and growth.

Terminal
$ npx skills add sendx/email-skills

Installs 15 email marketing skills for Claude Code, Codex, Cursor, and more

View on GitHub Browse Skills
Available Skills

15 skills. Every angle of email.

Deliverability
deliverability-guide
Master email authentication, reputation, and list hygiene to keep emails in the inbox.
Deliverability
email-deliverability-expert-skill
Diagnose and fix email deliverability problems using SendX's proven methodology.
Deliverability
infrastructure/deliverability-audit
Full audit of an email program's deliverability setup. Finds problems, explains fixes in plain English.
Compliance
compliance-navigator
Navigate email privacy laws and stay compliant worldwide.
Campaign
campaign-strategy
Pick the right SendX campaign type for any email marketing situation.
Campaign
ab-testing
Run email A/B tests that produce measurable results and guide future campaign decisions.
Campaign
smart-segmentation
Organize your list with segments and tags so the right people get the right email at the right time.
Campaign
workflow-automation
Build multi-step email sequences that respond to customer actions automatically.
Content
email-copywriting
Write subject lines, preview text, and body copy that gets opened, read, and clicked.
Content
industry-playbooks
Implement proven email strategies tailored to your industry using SendX features built for your business type.
Growth
list-growth-engine
Grow your email list using popups, forms, and landing pages with trigger strategies and lead magnets.
Growth
api-campaign-builder
Create, schedule, and manage HTML email campaigns through the SendX REST API.
Analytics
email-analytics
Understand what your email metrics mean and know what action to take based on the numbers.
ESP Ops
ESP-hardbounce-unlock
Hard bounce unlock request evaluation for ESP accounts.
ESP Ops
ESP-malicious-behavior-SKILL
Identify and investigate malicious sending behavior on your ESP.
Installation

Six ways to install

CLI Install

One command. Recommended for Claude Code, Codex, Cursor.

$ npx skills add sendx/email-skills

Claude.ai Projects

No coding. Copy a SKILL.md into your Project's custom instructions.

1. Open claude.ai, create a Project 2. Copy contents of any SKILL.md 3. Paste into custom instructions 4. Start chatting

Clone & Copy

Download everything. Drop skills into your agent's directory.

$ git clone https://github.com/sendx/email-skills.git $ cp -r email-skills/skills/* .agents/skills/

Git Submodule

Stay updated. Pull new skills as they're released.

$ git submodule add \ https://github.com/sendx/email-skills.git \ .agents/email-skills

Claude Code Plugin

Use Claude's built-in plugin system.

/plugin marketplace add sendx/email-skills /plugin install email-skills

Fork & Customize

Make it yours. Adapt skills for your specific email setup.

1. Fork on GitHub 2. Edit skills for your stack 3. Clone your fork into projects

These skills work with any email platform. They work even better with ours.

SendX →

Email marketing platform for growth teams. Campaigns, automation, segmentation, and analytics.

SendPost →

Email infrastructure API. IP warmup, bounce processing, and deliverability monitoring.