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。