# Mailtrap agent skills for Claude Code, Cursor and RevampKey

> Ready-made Mailtrap playbooks for AI agents: check whether a specific email was delivered, set up and reset a Mailtrap sandbox inbox with AI, check Mailtrap sending domain health. Free SKILL.md files for Claude Code, Cursor and Codex, or one click in RevampKey.

## Skills

- [Use Mailtrap safely with AI](https://revampkey.com/marketplace/mailtrap/skills/essentials.md): Work with your Mailtrap account through AI, confirming the account and whether each action targets sandbox testing or live sending. It asks before sending mail or deleting anything.
- [Check whether a specific email was delivered](https://revampkey.com/marketplace/mailtrap/skills/email-delivery-check.md): Finds one transactional email in your Mailtrap logs and tells you whether it was delivered, bounced, is still retrying, or was never sent. It asks before resending anything.
- [Set up and reset a Mailtrap sandbox inbox with AI](https://revampkey.com/marketplace/mailtrap/skills/sandbox-testing-setup.md): Finds or creates the right sandbox project and inbox, sends test emails into it, checks what arrived, and resets it on request. It asks before creating, changing or emptying anything.
- [Check Mailtrap sending domain health](https://revampkey.com/marketplace/mailtrap/skills/sending-domain-health.md): Audits your Mailtrap sending domains, reading each domain's state and sending volume trends to flag domains that need attention before mail fails. It asks for your explicit approval before changing any domain.
- [Audit and clean up Mailtrap email templates](https://revampkey.com/marketplace/mailtrap/skills/template-audit-and-cleanup.md): Inventories your Mailtrap email templates, flags duplicates, orphans and unclear ones, and proposes updates or deletions. It asks for your explicit approval before changing or removing any template.

## Install

- RevampKey: connect Mailtrap at https://revampkey.com/marketplace/mailtrap; the skills come with it.
- Any Agent Skills tool, into the current project:

```bash
for s in essentials email-delivery-check sandbox-testing-setup sending-domain-health template-audit-and-cleanup; do
  curl -fsSL --create-dirs -o .agents/skills/mailtrap-$s/SKILL.md https://revampkey.com/marketplace/mailtrap/skills/$s/SKILL.md
done
```

### What is a Mailtrap agent skill?

A SKILL.md file: a short playbook an AI agent loads when your request matches it. Each Mailtrap skill describes one job, which Mailtrap tools to use in which order, what to check first and when to stop and ask you.

### Do the Mailtrap skills change anything on their own?

2 of the 5 only read. The others tell the agent to show you the change and wait for a yes before it creates, edits or deletes anything in Mailtrap.

### Which tools can use these skills?

Any agent that reads the open Agent Skills format: Claude Code, Cursor, Codex, VS Code with Copilot and RevampKey. In RevampKey they are attached when you connect Mailtrap; elsewhere you copy the folders into your project or skills directory.

### Do I need the Mailtrap MCP server too?

Yes. The skills tell the agent how to do the work; the Mailtrap MCP server gives it the tools to do it. The Mailtrap MCP setup guide covers every client.

MCP setup guide: https://revampkey.com/marketplace/mailtrap.md