Email marketing skill for Claude Code. 55K words, 908 sources, 19 industry playbooks. Install the skill and Claude becomes your email marketing expert.

The most comprehensive ebook & audiobook self-publishing skill for Claude Code — 11 platforms, HTML→PDF Puppeteer workflow, AI audiobooks, ISBN strategy, promotion playbook. By TheGeoLab.net

PencilPlaybook is the UI Skills / Taste-Skill for Pencil.dev + Claude Code — a design playbook that gives Claude real perceptual psychology and senior-level guardrails so it stops producing averaged-out AI slop.