Agent skill · Security

deliverability-qa

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 states and scoring only at complete applicable coverage. Not for the recurring hygiene trend — use list-

aaron-he-zhugithub.com/aaron-he-zhuGitHub ↗
claude-codeApache-2.0
Install
npx skills add aaron-he-zhu/aaron-marketing-skills --skill deliverability-qa --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 2
SKILL.md size: 14 KB
Bundled scripts: none
Version: 19.1.0
Requires: Claude Code and compatible agent-skill hosts
Path: email/setup/deliverability-qa/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 2,508
Language: Python
Read our review of the source →

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Deliverability QA One-time pre-flight snapshot before a send — authentication, domain/IP reputation, inbox placement, a spam-content/link/render scan, and point-in-time list hygiene — delivered as a per-qualified-item Pass/Partial/Fail/Unknown/N/A read plus an **S1** authentication evidence flag. Emit the SEND **S (Sender-integrity / Deliverability)** dimension score only at 100% applicable coverage; otherwise return `NEEDS_INPUT/UNDECIDED/NOT_SCORED` and the exact gaps. This is the pre-send snapshot, not the standing watch owned by [list-hygiene-monitor](../list-hygiene-monitor/SKILL.md). **Scope guard: this skill builds and, when complete, scores SEND-`S`, and runs the `S1` authentication pre-flight only; it does NOT compute the profile-weighted EQS or enforce the `S1`/`S2`/`N1`/`D1` vetoes — that is [email-quality-auditor](../../deliver/email-quality-auditor/SKILL.md).** ## Quick Start ``` Run a deliverability pre-flight for [sending domain] before I send. Here is my DMARC RUA report, a DNS export, and my seed-list inbox-placement test: [paste/path]. ``` ``` Check my SPF/DKIM/DMARC/BIMI and my bounce + spam-complaint rates, then give me a pre-send checklist I can run myself. E

What's inside
Steps it walks through
  1. Quick Start
  2. Skill Contract
  3. Handoff Summary
  4. Data Sources
  5. Instructions
  6. Save Results
  7. Reference Materials
  8. Next Best Skill
Ships with 1 file
  • references/deliverability-checklist.md
More from aaron-marketing-skills
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About this skill
What does the deliverability-qa skill do?

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 states and scoring only at complete applicable coverage. Not for the recurring hygiene trend — use list-

How do I install it?

Run `npx skills add aaron-he-zhu/aaron-marketing-skills --skill deliverability-qa --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From aaron-he-zhu/aaron-marketing-skills, a repository with 2,508 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

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