What problem does it solve? Marketing copy often feels flat and fails to convert because it lacks psychological grounding. This Skill provides a reference framework of Cialdini's 6 persuasion principles and cognitive biases so any marketing asset — landing pages, emails, ads, pricing pages, onboarding flows — can be audited and rewritten with proven persuasion techniques. ## Core Features & Use Cases - Persuasion Principle Library: Covers Cialdini's 6 principles (reciprocity, commitment, social proof, authority, liking, scarcity) plus cognitive biases like loss aversion, anchoring, endowment effect, and framing, each with before/after rewrite examples. - Application Matrix: A quick-reference table mapping which principles work best for which asset types (landing page, email, pricing, onboarding, ads), including B2B vs B2C differences. - Ethical Guardrails: Explicit anti-patterns and ethical boundaries that distinguish legitimate persuasion from dark patterns like fake scarcity. - Use Case: After generating a landing page, invoke this Skill to audit the hero for anchoring, the CTA for scarcity, and the testimonials for social proof, receiving specific principle-based rewrites. ## Quick Start Apply marketing psychology principles to this landing page copy and suggest specific before/after rewrites for the headline, CTA, and testimonials.