aaron-he-zhu/aaron-marketing-skills · email/setup/deliverability-qa/SKILL.md

deliverability-qa skillA

deliverability-qa is agent-read markdown (skill) from aaron-he-zhu/aaron-marketing-skills: Use when the user asks to "run a deliverability pre-flight before I send", "check my SPF/DKIM/DMARC/BIMI", "why am I landing in spam / promotions", or "score my sender reputation and list hygiene"; runs the ONE-TIME pre-send SEND S1 authentication pre-flight and builds the SEND S (Sender-integrity / Deliverability) evidence read — DNS + DMARC-RUA auth, domain/IP reputation, inbox placement, content/link/render, and point-in-time bounce/complaint hygiene — using Pass/Partial/Fail/Unknown/N/A stat.

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 aaron-he-zhu/aaron-marketing-skills/deliverability-qa@v20.1.0
Exact content
mdr add aaron-he-zhu/aaron-marketing-skills/deliverability-qa@sha256:c59b5ab3076352ba

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_humhvk3gs3arbedk.svg)](https://markdownregistry.com/a/art_humhvk3gs3arbedk)

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Versions

versioncommittedcommitsizeaudit
v20.1.0 latest2026-09-01 0c914b1 14,490 BA view · diff
v20.0.02026-08-20 879002a 14,490 BA view · diff
v19.2.02026-08-10 d09dd90 14,490 BA view · diff
v19.1.02026-08-01 f744424 14,490 BA view · diff
v19.0.02026-07-24 407137c 14,490 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 (14490 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

aaron-he-zhu/aaron-marketing-skills · 2,734 stars · license Apache-2.0 · pushed 2026-09-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_humhvk3gs3arbedk
GET https://markdownregistry.com/api/v1/resolve?ref=aaron-he-zhu/aaron-marketing-skills/deliverability-qa
GET https://markdownregistry.com/api/v1/blob/c59b5ab3076352ba8c5fa773085d1fdc1860d5dd20534401b9dd157cdf19bf18