From kostja94-marketing-skills-5
Designs, optimizes, or audits newsletter signup forms with guidance on placement, fields, value proposition, and accessibility.
How this skill is triggered — by the user, by Claude, or both
Slash command
/kostja94-marketing-skills-5:newsletter-signupThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Guides newsletter signup form design for list growth. Email subscribers spend 138% more than non-subscribers; top popups convert at 23%+.
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 |
npx claudepluginhub joshuarweaver/cascade-data-analytics --plugin kostja94-marketing-skills-5Audits and optimizes signup/registration conversion funnels with benchmarks for steps, form fields, social login, progress indicators, and error handling.
Optimizes signup, registration, account creation, and trial activation flows to reduce friction and increase conversion rates.
Build email capture landing pages (squeeze pages) as single self-contained HTML files with lead magnet offers and affiliate redirects.