Modifying the TaxonomicFilter The TaxonomicFilter is the picker users hit to choose any "thing PostHog knows about" — events, properties, actions, cohorts, groups. It's the on-ramp into almost every analytics and replay configuration. Code lives in . The unbreakable rule: changes that demote items users actually pick are regressions, even with all tests passing. Read "Product reality" before deciding any change is safe. Ordering, promotion, or position-0 changes need explicit human sign-off — don't let an agent decide alone. Product reality (last refreshed 2026-05-02, 90-day window) Ratios fr…