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hktitan/duolingo

v2.0.0MIT

The Duolingo playbook as agent skills — retention, streaks, gamification, learning science, curriculum, efficacy measurement, metrics, experimentation, growth, brand, voice, culture, hiring, platform and mobile engineering, observability, and LLM feature design. Distilled from 750 posts on blog.duolingo.com plus the Duolingo Handbook and Design System. Start at the /duolingo router; design and UI craft routes out to design-engineering.

duo-learner-motivation

Keep people attempting a skill they believe they are bad at — by lowering what it costs to be visibly wrong, replacing unscoreable goals with ones they can hit, pre-announcing how bad early progress will feel, and supplying the attribution that turns a failure into information instead of a verdict. Use when users churn in week two saying they are "not good at this", when nobody will try the scary core action, when a promise like "fluent" or "proficient" or "mastery" gives users no win to register, when hard content reads as a test rather than a puzzle, or when you need words for a plateau. Triggers on "users say they're bad at it", "week two churn", "they won't try the main feature", "how do I set a goal that doesn't demoralize", "onboarding feels like a test", "what do I say when progress slows", "should I tell users they don't need all of it".

Version
2.0.0
License
MIT
Read SKILL.md at the source

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