# Teach your AI coding agent how to send email with Postmark Skills

DevFeed: [Teach your AI coding agent how to send email with Postmark Skills](<https://devfeed.tech/articles/teach-your-ai-coding-agent-how-to-send-email-with-postmark-skills-16085.md>)

Original publisher: [Read original article](<https://postmarkapp.com/blog/teach-your-ai-coding-agent-how-to-send-email-with-postmark-skills>)

Author: Postmark team (fdossetto+postmark@activecampaign.com)

Published: 2026-02-27T13:41:00Z

Content type: release

Language: en

Sources: [Postmark (en-US)](<https://devfeed.tech/sources/postmark-en-us.md>)

Topics: [Agent Skills](<https://devfeed.tech/topics/agent-skills.md>), [AI-assisted coding](<https://devfeed.tech/topics/ai-assisted-coding.md>), [API](<https://devfeed.tech/topics/api.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>), [Claude Code](<https://devfeed.tech/topics/claude-code.md>), [cursor](<https://devfeed.tech/topics/cursor.md>), [GitHub Copilot](<https://devfeed.tech/topics/github-copilot.md>), [codex](<https://devfeed.tech/topics/codex.md>), [Claude](<https://devfeed.tech/topics/claude.md>)

Tags: [agent-skills](<https://devfeed.tech/tags/agent-skills.md>), [ai-coding](<https://devfeed.tech/tags/ai-coding.md>), [ai-coding-agents](<https://devfeed.tech/tags/ai-coding-agents.md>), [api](<https://devfeed.tech/tags/api.md>), [claude-code](<https://devfeed.tech/tags/claude-code.md>), [cli](<https://devfeed.tech/tags/cli.md>), [codex](<https://devfeed.tech/tags/codex.md>), [coding-agents](<https://devfeed.tech/tags/coding-agents.md>), [cursor](<https://devfeed.tech/tags/cursor.md>), [email](<https://devfeed.tech/tags/email.md>), [gemini](<https://devfeed.tech/tags/gemini.md>), [github-copilot](<https://devfeed.tech/tags/github-copilot.md>), [openai](<https://devfeed.tech/tags/openai.md>), [product-news](<https://devfeed.tech/tags/product-news.md>), [skills](<https://devfeed.tech/tags/skills.md>)

## AI overview

Postmark announces Postmark Skills, an open-source set of Agent Skills that gives AI coding agents specialized knowledge for working with the Postmark API. The skills provide best practices, code examples, API details, and common mistakes to help agents generate more accurate email integration code.

## Source excerpt

If you've ever asked an AI coding agent to help you integrate email into your app, you've probably gotten code that looks right but isn't quite right. Maybe it used an outdated endpoint. Maybe it forgot about Message Streams entirely. Maybe it hallucinated a method that doesn't exist. (We've seen all three.) AI agents are only as good as the context they have, and until now, most of them had to rely on whatever fragments of Postmark documentation made it into their training data. Today, we're releasing Postmark Skills, a set of open source Agent Skills that teach AI coding agents how to work with Postmark correctly. What are Agent Skills? Agent Skills are an open standard for giving AI coding agents specialized knowledge. Think of them as instruction manuals that your agent reads before writing code, except these manuals are structured specifically for how AI models process information. Each skill is a folder with a SKILL.md file that contains best practices, code examples, API details, and common mistakes to avoid. When you install a skill, your AI agent loads it as context and uses it to write better, more accurate code. Skills work with Claude Code, Cursor, GitHub Copilot, OpenAI Codex, Gemini CLI, and a growing list of other tools. If your agent can read a markdown file, it can use a skill. What's included Postmark Skills covers five areas of the Postmark API: Sending email -- Everything your agent needs to send transactional or broadcast emails through Postmark. Single sends, batch sends (up to 500 per request), template-based sends, and the Bulk API for campaigns. The skill includes the decision logic for when to use each approach, proper Message Stream handling, error codes and retry strategies, and attachment support, including batch attachments, which some alternatives don't support. Inbound email processing -- Building workflows that receive and parse incoming email. Reply-by-email threading, email-to-ticket systems, document extraction from attachments, and