Skills email-marketing-bible

📦

email-marketing-bible

Name: email-marketing-bible
Author: CosmoBlk

v0.4 Content revision r1 Medium Risk 🌐 Network access📁 Filesystem access⚙️ External commands

Improve Email Marketing with Data-Backed Guidance

Email teams waste time sorting generic advice from useful tactics. This skill gives Claude, Codex, and Claude Code data-backed guidance for campaigns, flows, deliverability, and benchmarks.

Supports: Claude Codex Code(CC)

📊 69 Adequate

Install with my Agent

Copy this request to your Agent. It includes the canonical Skill page and manifest.

Agent request

Review the Skillstore skill "email-marketing-bible" from https://skillstore.io/skills/cosmoblk-email-marketing-bible.md and its manifest at https://skillstore.io/api/skills/cosmoblk-email-marketing-bible/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.

Your Agent should still show its plan and request any confirmation required by the security policy.

Agent-readable resources

Use these links when an AI agent, crawler, or script needs clean context instead of reading the full page.

Markdown detail GET /skills/cosmoblk-email-marketing-bible.md Signed manifest GET /api/skills/cosmoblk-email-marketing-bible/manifest Signed lockfile GET /api/skills/cosmoblk-email-marketing-bible/lockfile

Test it

Using "email-marketing-bible". A Shopify skincare brand has welcome and cart flows but low repeat purchase.

Expected outcome:

A prioritized audit that flags missing post-purchase, replenishment, and win-back flows.
Recommended timing, triggers, exclusions, and metrics for each flow.
Benchmarks for revenue per recipient, click rate, and unsubscribe rate.

Using "email-marketing-bible". Open rates dropped after volume doubled in Gmail.

Expected outcome:

A deliverability diagnosis covering SPF, DKIM, DMARC, reputation, bounces, content, and sending patterns.
A recovery plan that starts with engaged subscribers and monitors progress over several weeks.

Using "email-marketing-bible". A SaaS founder needs a launch email plan.

Expected outcome:

A segmented onboarding and lifecycle plan with prompts, success metrics, and platform-fit notes.

Security Audit

Medium Risk

v4 • 7/6/2026 Open versioned report

Static indicators were caused by Markdown references, inline DNS examples, or the documented Claude installation path. I found no prompt injection or executable behavior, but the cold email section could enable unsolicited outreach if used without consent controls.

Files scanned

570

Lines analyzed

Review items

False positives ignored

Confirmed security concerns (1)

Medium

SKILL.md:315-333 README.md:37-38

Cold Email Abuse Enablement

The skill gives operational cold email guidance, including separate domains, per-inbox daily limits, personalization scale, and follow-up cadence. This can support legitimate B2B outreach, but it can also enable unsolicited bulk email if used without consent controls.

The cold email instructions are explicit and operational, while nearby compliance guidance reduces but does not remove abuse risk.

Risk Factors

🌐 Network access (21)

📁 Filesystem access (2)

README.md:20 README.md:20

⚙️ External commands (4)

SKILL.md:189 SKILL.md:199 SKILL.md:200 SKILL.md:201

Audited by: codex View Audit History →

Share & cite this report

Share the versioned assessment report, neutral badge, embed card, and citations. Skillstore reports evidence without deciding whether this Skill is safe.

Open versioned report

Copy report link

https://skillstore.io/skills/cosmoblk-email-marketing-bible/audits/4?utm_source=security_passport&utm_medium=share&utm_campaign=versioned_report

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Academic citations (APA · BibTeX · CFF)

APA citation

CosmoBlk. (2026). email-marketing-bible security audit report (audit version 4) [Author version 0.4]. Skillstore. https://skillstore.io/skills/cosmoblk-email-marketing-bible/audits/4

BibTeX citation

@techreport{cosmoblk-cosmoblk-email-marketing-bible-2026,
  author = {CosmoBlk},
  title = {email-marketing-bible security audit report (audit version 4)},
  institution = {Skillstore},
  year = {2026},
  number = {4},
  url = {https://skillstore.io/skills/cosmoblk-email-marketing-bible/audits/4},
  note = {Author version 0.4}
}

CITATION.cff

cff-version: 1.2.0
message: "If you use this Skill, cite its author and this versioned security audit report."
title: "email-marketing-bible security audit report (audit version 4)"
version: "0.4"
type: report
authors:
  - name: "CosmoBlk"
date-released: "2026-07-06"
url: "https://skillstore.io/skills/cosmoblk-email-marketing-bible/audits/4"
identifiers:
  - type: other
    value: "skillstore:cosmoblk-email-marketing-bible:audit:4"
    description: "Skillstore immutable audit report identifier"

Skillstore Score

Why this score Evidence Confidence: High

Architecture

Maintainability

Content

Community

Spec Compliance

What You Can Build

Ecommerce Flow Audit

A DTC marketer can review current Klaviyo flows and identify revenue gaps, timing problems, and missing segments.

Deliverability Recovery

A lifecycle team can diagnose falling inbox placement using authentication, reputation, bounce, content, and warming checks.

Platform Selection

A founder can compare email platforms by list size, budget, automation needs, and growth plans.

Try These Prompts

Review My Setup

Review my current email setup. I use [platform] for [business type], have [flows], and send [frequency]. List the biggest gaps first.

Write A Flow

Create a [flow type] sequence for [product]. Include timing, goal, subject lines, preview text, email body outline, and success metrics.

Diagnose Deliverability

Diagnose my deliverability issue. My domain is [age], volume is [volume], bounce rate is [rate], complaints are [rate], and authentication is [status].

Build A Strategy

Build a 90-day email strategy for [business]. Include segments, automations, testing roadmap, reporting cadence, compliance checks, and platform recommendations.

Best Practices

Provide business model, list size, platform, send volume, current flows, and recent performance metrics.
Ask for prioritized recommendations when time, budget, or engineering resources are limited.
Validate legal and deliverability advice against your market, platform rules, and mailbox provider requirements.

Avoid

Do not request generic campaigns without audience, offer, lifecycle stage, and success metric.
Do not treat open rate as the only success metric after Apple Mail Privacy Protection.
Do not use cold outreach guidance without consent, suppression lists, and jurisdiction checks.

Frequently Asked Questions

Can this skill send emails?

No. It provides strategy, copy, diagnostics, and plans. It does not connect to an ESP or send messages.

Which platforms does it cover?

It discusses platforms such as Klaviyo, Mailchimp, ActiveCampaign, HubSpot, Kit, Brevo, beehiiv, Omnisend, SmartrMail, Bento, and Postmark.

Can it help with deliverability?

Yes. It covers SPF, DKIM, DMARC, reputation, bounce logs, content checks, warming, and recovery monitoring.

Does it include compliance advice?

Yes. It summarizes GDPR, CAN-SPAM, CASL, CCPA, and Australian Spam Act topics, but it is not legal advice.

Can it write email copy?

Yes. It can draft subject lines, preview text, body copy, and calls to action using frameworks such as PAS, AIDA, and BAB.

Who should use it?

It is useful for marketers, founders, lifecycle teams, consultants, and operators who manage email strategy or performance.

Developer Details

Author

CosmoBlk

License

MIT

Author version

v0.4

Skillstore revision

Version notice

The author-declared version is not valid SemVer.

Repository

https://github.com/CosmoBlk/email-marketing-bible/tree/main/

Ref

d11af420e07cd866fe39cfa937efef3223896c06

Maintenance freshness

7/18/2026

Usage

4 downloads · 78 views

File structure

📄 LICENSE

📄 README.md

📄 SKILL.md