# Offer Testing

> Use when designing copy experiments to optimize hooks, offers, and CTAs.

- Skill: `majiayu000/offer-testing` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/offer-testing`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/offer-testing/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/offer-testing

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# Offer Testing Playbooks Skill

## When to Use
- Planning subject line/CTA/offer tests across email, ads, or landing pages.
- Validating new positioning or pricing language.
- Running copy refresh cycles for campaigns.

## Framework
1. **Hypothesis** – statement of expected lift + rationale.
2. **Variable Selection** – hook, CTA, body copy, offer framing, proof element.
3. **Segmentation** – define audience splits and holdouts.
4. **Metrics** – primary KPI + guardrails (opens, CTR, CVR, CPL, unsub, spam).
5. **Analysis** – statistical significance (chi-square, z-test) or Bayesian approach.

## Templates
- Experiment brief (variable, control, variant, KPI, sample size, duration).
- Results report (metric table, significance, insight, next steps).
- Prioritization matrix (ICE/RICE scoring).

## Tips
- Limit to one variable per test to isolate learnings.
- Ensure minimum sample sizes per channel before declaring winners.
- Log tests and learnings in a shared repository.

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