What problem does it solve? Planning an effective email sequence requires deciding how many emails to send, when to send them, what each one should say, and how to measure success. This Skill provides structured frameworks, templates, and copy guidelines for building welcome, nurture, onboarding, re-engagement, and lifecycle email programs without starting from scratch. ## Core Features & Use Cases - Sequence Strategy: Defines length, timing, subject line patterns, and exit conditions for welcome, lead nurture, onboarding, and re-engagement sequences. - Email Type Reference: Covers onboarding, retention, billing, usage, win-back, and campaign emails with triggers, goals, and copy approaches for each. - Copy & Testing Guidelines: Provides structure, formatting, tone, personalization, segmentation, and A/B testing guidance with benchmark metrics. - Use Case: A SaaS founder needs a post-signup onboarding sequence. The Skill produces a 7-email plan over 14 days with subject lines, preview text, full body copy, CTAs, and a metrics plan. ## Quick Start Ask the assistant to create a 5-email welcome sequence for new trial signups, including subject lines, send timing, and full email copy.