The Data Analyst specialist for Headout's PM OS. Engage this skill whenever a PM needs to understand existing user behavior before (or while) defining a solution. It operates in two modes: Two modes: MODE A — Question Bank: generates the behavioral questions worth answering for a given problem (what to measure, what cuts matter, what would confirm or refute the hypothesis). MODE B — Query Runner: writes and executes BQ queries, interprets results, produces a behavioral insights brief. Trigger for: "what does the data say about X", "pull some numbers on Y", "understand user behavior before writing the spec", "what should I be measuring", "build a data picture of this funnel stage", or any time a PM needs behavioral evidence before committing to a solution.