email-creative-builder

email-creative-builder is a skill for Claude Code from aaron-he-zhu/aaron-marketing-skills. It costs 149 tokens per session (2,849 once invoked), scanned A, original, Apache-2.0.

A tool for drafting a complete marketing email: subject-line options, preview text, body copy, one call to action, and a plain-text version. It matches the email with its destination page and approved claims.

In plain words
What is it for?
Use it to write promotional or outbound emails, create subject and preview-text options, draft the message and call to action, and prepare a plain-text alternative.
Why use it?
It helps keep the email's promise consistent with the page recipients reach. It also separates writing the email from later scoring, testing, and deliverability checks.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions Claude Code; built for openclaw.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is Emit the standard shape from [skill-contract.md §Handoff Summary Format](../../../references/skill-contract.md), including the Narrative/claims dependency tuple.

Part of the aaron-marketing plugin — 120 skills shipped together , and of aaron-marketing

Good fit Use it to write promotional or outbound emails, create subject and preview-text options, draft the message and call to action, and prepare a plain-text alternative.

Compare 6 skills from other repositories ↓
About the project

aaron-marketing-skills is a collection of 120 AI-agent skills covering marketing work such as brand narrative, search optimization, social media, email, advertising, influencer campaigns, and launches. Marketers and agent users can install it as a plugin, use its portable skills, or run its described bot team. The catalogue entries are components of this marketing workflow.

aaron-he-zhu/aaron-marketing-skills · 2,767 stars · on GitHub · aaronmarketing.ai

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/aaron-he-zhu/aaron-marketing-skills
agentmods
npx agentmods add skills/aaron-he-zhu/aaron-marketing-skills/email-creative-builder

Made for: Claude Code.

Or install aaron-marketing, the plugin that ships this one along with the rest of its 120 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for email-creative-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/aaron-he-zhu/aaron-marketing-skills/email-creative-builder/github.svg)](https://agentmods.dev/skills/aaron-he-zhu/aaron-marketing-skills/email-creative-builder)
Your own site
<a href="https://agentmods.dev/skills/aaron-he-zhu/aaron-marketing-skills/email-creative-builder"><img src="https://agentmods.dev/badge/skills/aaron-he-zhu/aaron-marketing-skills/email-creative-builder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for email-creative-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/aaron-he-zhu/aaron-marketing-skills/email-creative-builder"><img src="https://agentmods.dev/badge/skills/aaron-he-zhu/aaron-marketing-skills/email-creative-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 149 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,849 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 2 Sept 2026
  • Snyk warn 2 Sept 2026
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00149 $0.02849
Opus 5 $0.00075 $0.01425
Sonnet 5 $0.00030 $0.00570
Haiku 4.5 $0.00015 $0.00285

Measured 10d ago against content hash b011527e8b09, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

email-creative-builder scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

email/engage/email-creative-builder/SKILL.md · 102 lines

How it starts

The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Email Creative Builder

Writes and iterates a single email creative — subject-line variants + preheader, body copy, one clear CTA, and a plain-text alternate — each message-matched to the destination landing page and traced to approved claim wording. This is the build skill that produces the SEND E/D unit (the email analog of paid's ad-creative-builder). It does not score the email, run the D1 veto, or compute the EQS — that is email-quality-auditor — and it does not design the multi-step flow (email-sequence-designer) or the test (send-experiment-designer).

Scope guard: this skill builds the creative unit + message-match + claim flags only. It drafts subject-line variants for the creative but does not pre-score or rank them (spam-trigger flags, length/truncation, emoji-count, inbox-preview render) — that is subject-line-lab. It scores no SEND dimension, runs no veto, and does not compute the profile-weighted EQS — email-quality-auditor owns all four vetoes (S1/S2/N1/D1) and the EQS rollup.

Quick Start

Write 5 subject lines + preheader + body + CTA for [offer], destination [URL], promo mode
Draft a cold-outbound email to [persona] for [offer]; personalize on [signal]; destination [URL]
Iterate these losing subject lines: [paste]. Keep the winners, replace the rest, hold message-match to [URL].

Skill Contract

Expected output: one content-complete email creative — 3-5 subject-line variants, a preheader, structured body copy, a single primary CTA, and a plain-text alternate — with a creative_ref / version / hash, a per-claim message-match note to the destination URL and any [needs source] flags, plus the standard handoff summary for memory/email/email-creative-builder/. Content-complete is not authorization to create or send through an ESP.

  • Reads: the offer/topic, destination, email mode, audience/lifecycle stage, existing copy, memory/projections/narrative.json, memory/projections/claims.json, and the live consent/suppression state required by the selected flow.
  • Writes: a user-facing email creative and, with permission, a WARM artifact; unresolved claims become authorized proposal events, never direct ledger edits.
  • Done when: subject/preheader fit declared render limits, the body has one primary CTA, plain text exists, claims/disclosures are accepted and context-valid or visibly blocked, destination message-match holds, the Narrative/claims dependency tuple is present, and the exact subject/preheader/body/CTA/plain-text set is frozen under a versioned creative hash.
  • Primary next skill: send-experiment-designer — design the A/B / send-time test across the subject variants; or email-quality-auditor to score the unit and run the D1 claim veto.

Read the full file on GitHub · 102 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago Changed · +2 lines b011527e8b09
  2. 13d ago First seen · 100 lines · 149 tokens per session scan A e4299be61801

Subscribe to this mod's changes

email-creative-builder is a skill published in the GitHub repository aaron-he-zhu/aaron-marketing-skills (2,767 stars, last pushed today), licensed Apache-2.0. It adds 149 tokens to every session and 2,849 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.