Behavioral Product Design

refoundai/lenny-skills

This walks you through applying behavioral economics to product design, from diagnosing what's stopping users from taking action to crafting interventions based on principles like loss aversion and present bias. It pushes you to identify friction points, set smart defaults, and create reinforcement loops while flagging dark patterns and cultural assumptions. The skill leans on insights from folks like Kristen Berman and Jackson Shuttleworth, with that "seven day loss aversion" heuristic as a north star for retention. Use it when you're designing onboarding flows, trying to build habits, or wondering why users drop off before completing key actions.

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2K

GitHub stars

1.4K

last updated

Aug 21, 2026

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