What problem does it solve? Launching an app without a concrete promotion plan leads to vague advice like "post on social media" that produces no results. This Skill turns a launch or update into a channel-by-channel viral playbook where every tactic ships as a copy-paste-ready artifact: post drafts, share-card specs, comment reply guides, and a D-7 to D+7 timeline. ## Core Features & Use Cases - In-app share mechanics: Designs share button placement, share card specs (1080×1920, 1080×1080), and CTA copy variants that directly affect K-factor. - Instagram 7-day calendar: Produces a dated posting schedule, a reels script with per-shot dialogue, 5-slide carousel copy, and a 30-hashtag set in a 5:15:10 size ratio. - Community launch templates: Drafts posts for Disquiet, GeekNews, Reddit, Product Hunt, and Hacker News, each with a comment-response guide, posting-time recommendation, and self-promotion limits to avoid bans. - Word-of-mouth seeding: Provides beta-tester coordinated posting plans, friend message templates, and a launch tweet. - Use Case: You shipped an Android app and ask "how do I make this go viral on Instagram and Korean communities?" You receive a master plan, per-channel drafts, a launch-day timeline, and UTM-based KPI tracking. ## Quick Start Ask the assistant to create a viral launch playbook for your app covering in-app sharing, Instagram, and community channels with actual post drafts and a launch timeline.