What problem does it solve? Marketers often cite psychological principles from memory without knowing whether the evidence behind them is robust, contested, or pure folklore, leading to unsupported claims and manipulative tactics. This Skill grounds every behavioral recommendation in a named model with an explicit evidence tier and a measurable test. ## Core Features & Use Cases - Evidence-tiered model catalog: A reference library of 50+ behavioral and pricing models, each labeled Robust, Context-dependent, Contested, Folklore, or Framework, so claims never exceed the evidence. - Structured recommendation contract: Every recommendation ships with Mechanism, Evidence, Application, and Test sections, turning psychology into falsifiable experiments rather than assertions. - Ethical guardrails: Hard boundaries against dark patterns, fake scarcity, hidden defaults, and clinical claims, with routing to sibling skills for pricing, copy, and A/B testing. - Use Case: A founder asks why free trials outperform freemium for their product; the Skill applies loss aversion, endowment effect, and zero-price effect with their evidence tiers and proposes how to validate each in their funnel. ## Quick Start Ask the agent to use suede-marketing-psychology to recommend evidence-backed psychological models for improving conversions on your pricing page.