What problem does it solve? Launching a product on X without a structured plan often leads to unfocused copy, untested hooks, and no measurement discipline. This Skill provides a step-by-step playbook for planning launch distribution, engineering launch copy, and running content experiments on X while keeping claims evidence-based. ## Core Features & Use Cases - Hook and Copy Development: Builds hook hypotheses from a feature-capability-outcome chain and reviews launch copy for clarity, credibility, and factual accuracy. - Distribution Experiment Design: Plans tactics such as founder replies, community participation, partner amplification, and paid boosts with defined hypotheses and measurement. - Evidence Discipline: Classifies every claim as FACT, OBSERVATION, INFERENCE, HYPOTHESIS, BENCHMARK, or RECOMMENDATION to prevent fabricated metrics or algorithmic folklore. - Use Case: A startup preparing to announce a new product on X uses this Skill to produce hook hypotheses, reviewed launch copy, a reply bank, a content calendar, and a launch plan with owners and measurement criteria. ## Quick Start Use the viral-launch-playbook skill to plan the launch of our product on X based on the product brief and positioning docs in docs/inputs.