d-padmanabhan/agent-engineering-handbook · skills/cloudflare-email-service/SKILL.md

cloudflare-email-service skillA

cloudflare-email-service is agent-read markdown (skill) from d-padmanabhan/agent-engineering-handbook: Send and receive transactional emails with Cloudflare Email Service (Email Sending + Email Routing). Use when building email sending (Workers binding or REST API), email routing, Agents SDK email handling, or integrating email into any app - Workers, Node.js, Python, Go, etc. Also use for email deliverability, SPF/DKIM/DMARC, wrangler email setup, MCP email tools, or when a coding agent needs to send emails. Even for simple requests like "add email to my Worker" - this skill has critical config .

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add d-padmanabhan/agent-engineering-handbook/cloudflare-email-service@git:20260824.a419591
Exact content
mdr add d-padmanabhan/agent-engineering-handbook/cloudflare-email-service@sha256:5d25cbe80a81326f

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_545wrba3utd3fwgk.svg)](https://markdownregistry.com/a/art_545wrba3utd3fwgk)

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Versions

versioncommittedcommitsizeaudit
git:20260824.a419591 latest2026-08-24 a419591 7,928 BA view · diff
git:20260601.8111c352026-06-01 8111c35 7,956 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (7928 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

d-padmanabhan/agent-engineering-handbook · 17 stars · license MIT · pushed 2026-09-12 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_545wrba3utd3fwgk
GET https://markdownregistry.com/api/v1/resolve?ref=d-padmanabhan/agent-engineering-handbook/cloudflare-email-service
GET https://markdownregistry.com/api/v1/blob/5d25cbe80a81326fc16fd8858a567f49d41f9c4c087bf0372522cf2ab62f5762

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.