A professional email automation skill for sending transactional and notification messages using the Resend API within Openclaw Skills.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install resend-email
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install resend-email using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Resend Email?
The Resend Email skill enables developers to integrate high-deliverability email capabilities directly into their AI agent workflows. By leveraging the Resend API, this addition to Openclaw Skills allows for the sending of both plain text and rich HTML emails from any verified domain. It is designed for developers who need reliable communication channels for their agents, whether for simple notifications or complex automated responses.
A unique feature of this skill is its built-in Email Voice: The Bureaucrat. This persona ensures that all automated communications maintain a warm yet professional, polite, and official tone. This makes it particularly effective for business-to-business interactions or formal customer service where a consistent, "compliance-friendly" voice is required.
Resend Email Use Cases
- Sending automated order confirmations and transactional notifications to customers.
- Dispatching system status alerts or compliance notices from an agent.
- Triggering automated responses to inbound inquiries via webhooks.
- Delivering personalized welcome emails to new users with rich HTML formatting.
- Maintaining a consistent, professional brand voice across all agent-driven email communication.
How Resend Email Works
- The skill authenticates with the Resend API using credentials stored in a local configuration file.
- Outbound emails are triggered via a provided bash script or a direct REST API call, defining the recipient, subject, and content.
- The skill processes the request and routes it through Resend's infrastructure using your verified domain.
- For inbound automation, a webhook is configured to listen for incoming emails and trigger specific Openclaw Skills hooks.
- Inbound data is transformed and processed by an agent, which can then fetch the full email body via the Resend receiving API.
Resend Email Setup
To start using this with Openclaw Skills, first configure your credentials at ~/.config/resend/credentials.json with your Resend API key.
To send a simple email via the CLI, use the following command:
bash skills/resend-email/scripts/send.sh \
--to "[email protected]" \
--subject "Subject Line" \
--body "Email body text"
For local webhook development, you can expose your environment using Tailscale Funnel:
/Applications/Tailscale.app/Contents/MacOS/Tailscale funnel --bg 18789
Resend Email Data Schema & Taxonomy
The skill manages its configuration and data through a specific file structure and JSON schema:
| Component | Path / Detail | Purpose |
|---|---|---|
| Credentials | ~/.config/resend/credentials.json |
Stores the API key and default from address. |
| Outbound Script | scripts/send.sh |
Handles parameter parsing and API interaction. |
| Transformation | resend-inbound.js |
Logic for converting Resend webhooks into agent-ready data. |
| Voice Reference | references/voice-bureaucrat.md |
Tone guidelines for generating email content. |
Resend Email Advanced Features
- Multi-domain support allowing agents to send from any Resend-verified domain.
- Full support for HTML emails with embedded CSS and rich formatting.
- Integration with Clawdbot hooks for end-to-end automated email handling and response.
- Advanced webhook transformation scripts that retrieve full body content from the receiving API.
- Built-in "Bureaucrat" personality framework to ensure polite and professional agent communication.
SKILL.md
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