Details
Overview
Components: Newsletter Signup Skill is an open-source Agent Skill from the kostja94/marketing-skills collection (MIT). It teaches AI coding agents focused marketing / SEO workflows so they can produce production-ready guidance instead of generic advice.
Guides newsletter signup form design for list growth. Email subscribers spend 138% more than non-subscribers; top popups convert at 23%+.
Identify: 1. Placement: Header, footer, popup, inline, sidebar 2. Incentive: What subscribers receive 3. Platform: Web, mobile, both
Official skill id: newsletter-signup-generator. Source path: skills/components/conversion/newsletter-signup.
Key Features
- E: mail only when possible; highest conversion
- A: dd name only if needed for personalization
- W: rong number of fields significantly impacts conversion
- C: lear: what subscribers receive, how often
- T: ransparent: avoid disappointing subscribers
- I: ncentive: lead magnet, discount, exclusive content
How to Use
- Use a Skill-compatible agent such as Claude Code, Cursor, or Codex.
- Install from the terminal (Node.js required):
npx skills add https://github.com/kostja94/marketing-skills --skill newsletter-signup
Or paste the install prompt from this tool page into your agent and ask it to install for you. 3. Restart / reload the agent so the new Skill is loaded. 4. Invoke the Skill with its slash commands or by asking the agent to run the workflow described in Overview / Key Features. 5. Review outputs before publishing — treat model-generated copy, images, and data as drafts.
Pricing
| Plan | Billing | Price | Notes |
|---|---|---|---|
| Open source | — | Free | MIT license; install via npx skills add |
| Full pack | — | Free | Optional: install the entire marketing-skills repo |
No paid tiers. Check the GitHub repository for license and updates.
Best For
Marketers, indie hackers, ecommerce / SaaS founders, and SEO operators who want agents to execute a specific marketing task with structured best practices.
Trigger context from the skill author: When the user wants to design, optimize, or audit newsletter signup forms. Also use when the user mentions "newsletter," "email signup," "subscribe form," "email capture," "lead magnet," "newsletter form," "email opt-in," "subscribe CTA," "newsletter signup," or "email list building." For email strategy, use…
FAQ
How do I install this skill?
npx skills add https://github.com/kostja94/marketing-skills --skill newsletter-signup-generator
Or copy the skill folder into .cursor/skills/, .agents/skills/, or .claude/skills/.
Does this skill run code on my machine?
No. Skills in this collection are pure Markdown instructions for agents — no executable payloads.
Can I install only this skill instead of the full pack?
Yes. Prefer --skill newsletter-signup-generator for a single task. Install 2–3 related skills per job rather than the entire library.
Where should I add project context?
Copy templates/project-context.md from the repo into .cursor/ or .claude/ and fill in product, audience, and brand details so outputs stay tailored.