/offer-testing
Use when designing copy experiments to optimize hooks, offers, and CTAs.
$ npx -y skills add gtmagents/gtm-agents --skill offer-testing --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
- Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
- You can call itInvoke it directly when you want it.
- Slash command
/offer-testing
Context preview
The summary Claude sees to decide when to auto-load this skill.
Use when designing copy experiments to optimize hooks, offers, and CTAs.
SKILL.md
offer-testing.SKILL.mdname: offer-testing description: Use when designing copy experiments to optimize hooks, offers, and CTAs.
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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