react-email skill: Build and send emails from agents

Where this fits

Imagine your agent needs to send a password reset email after a user request, or generate an order confirmation for a purchase it just processed. Without a dedicated email skill, you'd hand-roll HTML tables, inline styles, and hope Outlook doesn't mangle it. The react-email skill gives your agent a component-based approach to build, preview, and send emails—directly from its toolset.

Why agents benefit

• Generate production-ready HTML email templates using React components, with proper support for email clients (Gmail, Outlook, Apple Mail) without manual testing.
• Render emails to HTML on demand—your agent can compile a React component to a string and attach it to an API call or file output.
• Send emails via Resend with a single integration, including handling of attachments, reply-to, and delivery status.
• Embed a visual email editor into your application—the skill covers the React Email visual editor component, letting users (or agents) design templates in a drag-and-drop interface.
• Cover common transactional flows—welcome emails, password resets, notifications, newsletters—with reusable, typed components that reduce boilerplate.

Practical scenarios

Automating password reset flows

A customer support agent receives a request to reset a password. It invokes the skill, generates a secure token, and renders a branded password reset email using react-email components. The agent then sends it via Resend and logs the delivery status—all without a human touching a template.

Building a notification system for internal tools

Your agent monitors CI/CD pipelines and sends failure alerts. Instead of plain text, it uses the skill to craft a structured HTML notification with status badges, links to logs, and a call-to-action button. The email renders consistently across clients, improving readability and response.

Adding a visual editor to a user-facing dashboard

A SaaS product wants to let non-technical users design their own email campaigns. The agent integrates the React Email visual editor component, allowing users to drag-and-drop blocks. The agent then converts the visual design into responsive HTML and queues sends via Resend.

Add it to your agent workflow

Install the skill using the OpenAgentSkill CLI:

npx skills add resend/resend-skills --skill react-email

Then, in your agent's code, import the React Email components and send a simple email:

import { Html, Body, Button, Text } from 'react-email';
import { Resend } from 'resend';

const resend = new Resend(process.env.RESEND_API_KEY);

const Email = ({ name }) => (
  <Html>
    <Body>
      <Text>Hi {name},</Text>
      <Button href="https://example.com/confirm">Confirm your account</Button>
    </Body>
  </Html>
);

await resend.emails.send({
  from: 'you@example.com',
  to: 'user@example.com',
  subject: 'Welcome!',
  html: <Email name="Alice" />,
});

The skill handles the rendering and sending, so your agent can focus on the logic.

Compare before adopting

Before integrating react-email, compare it against alternatives like MJML or Handlebars templates. Check the repository's stars (169) and recent commits for maintenance freshness, and read the README for known limitations (e.g., CSS support). Also evaluate whether your workflow needs a visual editor—if not, a simpler templating engine might suffice. Finally, consider the learning curve for React developers versus a more traditional approach.

Why it is worth tracking

react-email is backed by Resend, a well-funded email API provider, and the project has steady community adoption (169 stars and growing). The skill is actively maintained (version 2.1.0) and integrates seamlessly with Resend's sending infrastructure. It's worth tracking because email remains a universal communication channel, and this skill reduces the friction of building and sending transactional emails from agents. Evaluate it when your agent needs to produce polished, responsive emails without a dedicated design team. For more details, see the skill page on OpenAgentSkill.