Email A/B Test Planner Claude Skill — Klaviyo Test Roadmap

Plan an email testing program that produces real learnings: hypothesis, variable isolation, sample size, success metric, and quarterly roadmap.

What this Claude Skill does

• Write hypotheses tied to a single variable, not vibes
• Calculate sample size and statistical confidence ahead of time
• Plan a quarterly test roadmap that compounds learnings
• Document test results so you stop re-running the same tests

Built for

• Email marketers building a real testing culture
• Lifecycle leads training junior team members on testing
• Agencies productizing email optimization for clients

What's inside

• SKILL.md — the full skill file with frontmatter, methodology, phases, examples, anti-patterns, and recovery
• Step-by-step phases Claude follows to produce a senior-level output every time
• Worked examples with realistic detail you can adapt to your situation
• Anti-patterns + recovery playbook so the work survives edge cases
• Delivery file tree so outputs land organized for you or your client

How a Claude Skill works

This is a Claude Skill — a single SKILL.md file Claude reads as instructions for a specific kind of work. Drop it in your Claude Project, your /mnt/skills/user/ folder, or wherever Claude can read it. Claude triggers the skill automatically when your prompt matches its description, then follows the methodology end to end.

Author

Built by Ukiyo Productions — a strategy-led branding and growth agency. Part of a 100+ skill marketplace built for founders, operators, consultants, and agencies.