experiment-designer

Design smallest-viable marketing tests for offer page messaging.

1|Updated Jan 29, 2026
One-click install
npx skills add https://github.com/polything/starter-skills --skill experiment-designer
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: experiment-designer
Source: https://github.com/polything/starter-skills/tree/main/skills/experiment-designer
Command: npx skills add https://github.com/polything/starter-skills --skill experiment-designer

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill helps founders validate new offer-page messaging with fast feedback loops and minimal spend by running tiny, well-scoped tests.

Core Features & Use Cases

  • Define a one-line hypothesis: state a clear test objective that can be measured.
  • Design the smallest viable test: landing pages, emails, or ads with minimal spend.
  • Generate outputs: a test plan and a Test Card template for consistent execution.
  • Use Case: validate messaging for a new feature before a full page rollout.

Quick Start

Draft a smallest-viable test plan for your offer page and run it to collect initial metrics.

Frequently Asked Questions about experiment-designer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I validate landing page messaging without spending a lot on ads?

Validate landing page messaging by designing a smallest-viable test using a limited budget. Define a one-line hypothesis, select a minimal test like an email CTA or test ad, specify metrics and stop rules, and generate a Test Card to measure results.

What is a Test Card for marketing experiments?

A Test Card for marketing experiments is a template that documents your hypothesis, selected test metrics, and stop rules. It provides a consistent execution plan to validate offer page messaging with fast feedback loops and minimal spend.

How do I write a hypothesis for a marketing test?

Write a hypothesis for a marketing test by stating a clear, one-line test objective that can be measured. This hypothesis drives the design of your smallest viable test, whether it is a landing page, email CTA, or test ad.

Can I use this approach to test an email CTA instead of a full landing page?

Yes, you can use this approach to test an email CTA instead of a full landing page. The method designs the smallest viable test across scenarios like emails or test ads, ensuring you validate messaging quickly before a full page rollout.

What metrics do I need to define for a smallest viable marketing test?

Define specific performance metrics and establish stop rules for your smallest viable marketing test. These metrics measure the success of your one-line hypothesis and determine when to conclude the test to minimize spend.

When should I design a smallest viable test for my offer page?

Design a smallest viable test for your offer page when you need to validate new feature messaging before a full rollout. It is ideal for quick messaging validation scenarios using landing pages, emails, or ads with a limited budget.