What problem does it solve? Short-form creators often repeat viral-growth advice without knowing which patterns are actually measured, which come from external sources, and which are untested guesses. This Skill turns experiment outcomes into reusable, versioned playbooks with explicit provenance so teams stop treating hypotheses as facts. ## Core Features & Use Cases - Structured Playbook Generation: Produces a 16-section playbook covering hook patterns, first-3-second guidance, pacing maps, retention mechanisms, caption grammar, and A/B test matrices. - Evidence Provenance Policy: Tags every recommendation as measured in Yap Engine experiments, supported by a cited external source, or an explicit hypothesis requiring testing. - Versioned Changelogs: Increments the playbook version and records the reason for every material change, producing Markdown suitable for version control plus a compact experiment backlog. - Use Case: After running a month of TikTok hook experiments, use this Skill to compare outcomes, extract reusable patterns, and draft a v2 playbook with an adversarial consistency check before publishing it to the team. ## Quick Start Use the virality cheatbook writer skill to draft a versioned TikTok growth playbook from my recent experiment results, marking every recommendation as measured, cited, or hypothesis.