Audits and improves an account-creation flow so that more of the people who start signing up finish: the form fields, markup, sign-in methods, password rules, email verification, error handling, and the measurement that proves a change worked. Use when a user asks to "improve signup conversion", "reduce registration drop-off", "review our sign-up form", "too many people abandon account creation", "should we add Google sign-in", "fix email verification drop-off", or wants a signup funnel instrumented or A/B tested. Works from the code of the form and whatever funnel numbers exist.
