What does the Wilhelmina skill do?

Fix on-page conversion: find the exact drop-off step, form a testable hypothesis, and design a statistically valid A/B test. Load it once into Claude Projects and you get a configured Conversion Rate Optimization Specialist without re-explaining context at the start of every session. Verify every number, benchmark, and platform-specific detail against your own data, account, and current platform policies before acting on it.

How do I install this skill file?

Download the .skill package (it contains SKILL.md), paste the contents into Claude Projects Instructions or your AI's system prompt, add your own context and start your first session. Works with Claude, ChatGPT, or any AI chat that accepts system prompts.

Which AI tools does this skill work with?

Works with Claude (recommended), ChatGPT, Gemini, Perplexity and Copilot, and any AI chat that accepts system prompts. Claude Projects gives the best results.

What is included in this download?

One .skill package delivered instantly after purchase: the full SKILL.md role configuration plus a worked-example file with a real scenario so you see the quality before you rely on it. No subscription, yours permanently.

How is this different from using Claude without the Wilhelmina skill?

Without a skill file your AI starts every session as a general assistant. With Wilhelmina loaded it applies Conversion Rate Optimization Specialist methodology from the first message, with consistent quality every time. Verify every number, benchmark, and platform-specific detail against your own data, account, and current platform policies before acting on it.

Conversion Rate Optimization Specialist AI Skill for Claude & ChatGPT

Name: Wilhelmina — Conversion Rate Optimization Specialist AI Skill
Brand: KissMySkills
Availability: InStock

Wilhelmina — Conversion Rate Optimization Specialist AI Skill

$34.00

Wilhelmina — Conversion Rate Optimization Specialist AI Skill

$34.00 this skill vs $105+/hr, hiring a senior CRO specialist

⚡ Instant download ◆ Claude & ChatGPT ∞ Keep forever

Instant download · 30-day money-back guarantee. Pay once, keep forever — no subscription. Refund policy

Fix on-page conversion: find the exact drop-off step, form a testable hypothesis, and design a statistically valid A/B test.

Funnel drop-off located to a specific step, not a vague page-level complaint
Every hypothesis grounded in a named behavioral principle, not personal taste
Sample size and minimum detectable effect calculated before a test ships
A pre-committed decision rule set before the data comes back

Teams with traffic but a stalled checkout or signup conversion rate who want a rigorous test, not a redesign guess.A senior CRO specialist bills $105+/hr, this is one file, yours forever.

// what's inside

Drop Wilhelmina into Claude and get a senior CRO Specialist who works backward from a specific, measured drop-off point, never a page redesign because it feels dated.

Wilhelmina covers the full on-page conversion loop: funnel and friction audits, heuristic/UX review grounded in behavioral principle, qualitative research synthesis (heatmaps, session recordings, surveys), hypothesis generation, and A/B and multivariate test design with real statistical rigor, including sample-size and duration math before a test ships.

What you get

→Funnel drop-off located to a specific step, not a vague page-level complaint
→Every hypothesis grounded in a named behavioral principle, not personal taste
→Sample size and minimum detectable effect calculated before a test ships
→A pre-committed decision rule set before the data comes back

📄 wilhelmina-cro-specialist.skill Under 2 min install Works with Claude, ChatGPT & any AI chat

How to install

Download the .skill package → open Claude → paste SKILL.md into your Project Instructions or system prompt → describe your requirement → Wilhelmina builds the answer. Includes a full worked example so you see exactly what you get.

wilhelmina-cro-specialist.skill

# Wilhelmina, Conversion Rate Optimization Specialist

You are Wilhelmina, a Senior CRO Specialist. Work backward from a measured drop-off point; ground every hypothesis in behavioral principle, not taste.

## How you work
1. Audit the funnel to a specific, located drop-off step
2. Diagnose with heuristics and qualitative research (heatmaps, recordings)
3. Write a testable hypothesis grounded in a named principle
4. Calculate sample size and minimum detectable effect before shipping
5. Set the decision rule before the data comes back

Never redesign a page because it feels dated.

Excerpt from the actual file you'll download.

// try it

prompt

$Our checkout conversion has been stuck at 30% for months. Audit it and design a test to fix it.

Wilhelmina returns funnel data isolating a 61% cart-to-checkout drop at the shipping-cost reveal step, a heuristic and session-recording diagnosis of the trust gap causing it, a three-variant A/B test with a stated hypothesis, minimum detectable effect, sample size, and a pre-committed decision rule, plus a final verdict.

// how to install Under 2 minutes

Four steps. Any AI chat.

01
Download the file
After checkout, the download link lands in your inbox. Save the file anywhere on your device.
02
Open your AI chat
Claude, ChatGPT, Gemini, Grok, or Copilot — whichever one you already use.
03
Paste the file contents
Drop it into the system prompt, Project instructions, or custom instructions field.
04
Start working
Your AI is now configured as a specialist. Ask it anything inside its domain.