Kate Callahan
I help teams ask better questions, decide what matters, and build a practical way forward.
My work spans product strategy, research, operations, and hands-on building. I care about getting the question right—and making something useful with the answer.
Explore my work
Decisions, systems, and things I’ve built.
Morningstar · Product strategy & research
Senior user researcher · Mixed methods
A signature chart. A consequential color decision. A team ready to move forward.
I designed a study to help Morningstar resolve a debate about how to communicate valuation—and reframed the question around meaning, rather than color preference.
Read the case studyBuilding with AI
Working with AI has meant learning where it needs direction. These are two skills I built to put that learning into practice.
Research workflows · Claude skill
AI can jump to themes before it has finished examining the evidence. This skill keeps analysis descriptive and requires confirmation that all the data is in, plus permission to begin synthesis.
Explore the skill on GitHubData experiences · Claude skill
For a client project, I used Claude Code with live Supabase schemas to develop a measurement strategy, SQL joins, and a sample dashboard. I built this skill to guide useful, accessible charts—from chart choice and truthful scales to labels and hierarchy.
Explore the skill on GitHubAbout my practice
Before choosing a method or building a solution, I help a team work out what it needs to learn, which risks matter, and what the evidence will let us decide.
I work with the people closest to the problem, connecting research, product strategy, and the systems that make the work repeatable. Sometimes that means a focused study; sometimes a measurement plan, a prototype, or a tool the team can use again.
My creative practice includes Season and Color, my floral studio. Working with materials and making things by hand is another part of how I think and build.
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