This generates a complete diary study research plan when you need to understand how users behave over time in their natural environment. It walks through research goals, study design (duration, participant criteria, entry prompts, capture methods), analysis framework, and attrition strategies. You get 8-15 participants, a mix of daily and event-triggered prompts, and concrete guidance on onboarding and mid-study check-ins. Useful when surveys are too shallow and interviews miss the messy reality of how people actually use something day to day. The output is meant to be a ready-to-execute plan, not just theory.
npx skills add https://github.com/owl-listener/designer-skills --skill diary-study-plan