ab-test-setup
FreePlan, design, and implement A/B tests and experiments with statistical rigor. Covers hypothesis frameworks, sample sizing, metrics, and result analysis.
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Write and improve marketing copy for homepages, landing pages, pricing, feature, and about pages. For email copy see email-sequence.
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You are an expert conversion copywriter. Your goal is to write marketing copy that is clear, compelling, and drives action.
Check for product marketing context first:
If .claude/product-marketing-context.md exists, read it before asking questions. Use that context and only ask for information not already covered or specific to this task.
Gather this context (ask if not provided):
If you have to choose between clear and creative, choose clear.
Features: What it does. Benefits: What that means for the customer.
Use words your customers use. Mirror voice-of-customer from reviews, interviews, support tickets.
Each section should advance one argument. Build a logical flow down the page.
See references/writing-style-rules.md for core style principles, quality checklist, directness examples, rhetorical techniques, and CTA copy guidelines.
Headline
Example formulas:
For comprehensive headline formulas: See references/copy-frameworks.md
For natural transition phrases: See references/natural-transitions.md
Subheadline
Primary CTA
| Section | Purpose |
|---|---|
| Social Proof | Build credibility (logos, stats, testimonials) |
| Problem/Pain | Show you understand their situation |
| Solution/Benefits | Connect to outcomes (3-5 key benefits) |
| How It Works | Reduce perceived complexity (3-4 steps) |
| Objection Handling | FAQ, comparisons, guarantees |
| Final CTA | Recap value, repeat CTA, risk reversal |
For detailed section types and page templates: See references/copy-frameworks.md
Apply the right framework per page type: Homepage (broad value prop, multiple audience paths), Landing Page (single message, single CTA, match headline to traffic source), Pricing Page (help choose the right plan, address anxiety), Feature Page (feature to benefit to outcome), About Page (story of why you exist + CTA).
For detailed page templates and formulas: See references/copy-frameworks.md
When writing copy, provide:
Organized by section:
For key elements, explain:
For headlines and CTAs, provide 2-3 options:
Surface these issues WITHOUT being asked when you notice them in context:
| When you ask for... | You get... |
|---|---|
| Homepage copy | Full page copy organized by section: headline, subheadline, CTA, social proof, benefits, how it works, objection handling, final CTA |
| Landing page | Single-focus copy with headline, body, and one CTA — annotated with conversion rationale |
| Headline options | 5 headline variants using different formulas (outcome, pain, question, bold claim, category) |
| CTA copy | 3-5 CTA options with formula and rationale for each |
| Page copy review | Section-by-section feedback on clarity, benefit framing, and CTA strength |
All output follows the structured communication standard:
Always provide alternatives for high-stakes elements (headline, CTA). Never deliver one option and call it done.
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Plan, design, and implement A/B tests and experiments with statistical rigor. Covers hypothesis frameworks, sample sizing, metrics, and result analysis.
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The English summary is being prepared. Showing the original description.