Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting...

Presentation creation, editing, and analysis. When Claude needs to work with presentations (.pptx files) for: (1)...

When the user wants to plan, design, or implement an A/B test or experiment. Also use when the user mentions "A/B...

When the user wants to write, rewrite, or improve marketing copy for any page — including homepage, landing pages,...

Core Web Vitals計測・診断スキル。Lighthouse CLI、Bundle Analyzer、パフォーマンス問題の特定と対策。

When the user wants to create or optimize an email sequence, drip campaign, automated email flow, or lifecycle email...

When the user wants to optimize any form that is NOT signup/registration — including lead capture forms, contact...