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SKILL.md
npx skills add kostja94/marketing-skills --skill newsletter-signup-generator
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 email-marketing.
npx skills add kostja94/marketing-skills --skill newsletter-signup-generator
Guides newsletter signup form design for list growth. Email subscribers spend 138% more than non-subscribers; top popups convert at 23%+.
When invoking: On first use, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.
Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read it for audience and value proposition.
Identify:
type="email" for mobile keyboards)| Placement | Best For | Pros | Cons |
|---|---|---|---|
| Header | High visibility | Always visible | Limited space |
| Footer | Secondary capture | Non-intrusive | Lower visibility |
| Footer bar | Persistent | Sticky | Can annoy |
| Popup | High intent | High conversion | Intrusive |
| Inline | Content pages | Contextual | Depends on scroll |
| Requirement | Practice |
|---|---|
| Labels | <label> for each input; for/id association |
| Placeholders | Don't replace labels; supplement only |
| Error messages | Clear, associated with field |
| Keyboard | Full tab order; submit via Enter |
| Touch targets | ≥44×44px for submit button |