PostHog Analytics Skill For implementing product analytics with PostHog event tracking, user identification, feature flags, and project specific dashboards. Sources: [PostHog Docs](https://posthog.com/docs) [Product Analytics](https://posthog.com/docs/product analytics) [Feature Flags](https://posthog.com/docs/feature flags) Philosophy Measure what matters, not everything. Analytics should answer specific questions: Are users getting value? (activation, retention) Where do users struggle? (funnels, drop offs) What features drive engagement? (feature usage) Is the product growing? (acquisition, referrals) Don't track everything. Track what informs decisions. Installation Next.js (App Router) React (Vite/CRA) Python (FastAPI/Flask) Node.js (Express/Hono) Environment Variables Add to credentials.md patterns: User Identification When to Identify User Properties Event Tracking Patterns Event Naming Convention Core Events by Category React Hook for Tracking Feature Flags Setup Server Side (Next.js) A/B Testing Project Specific Dashboards SaaS Product E Commerce Content/Media AI/LLM Application Creating Dashboards Using PostHog MCP Dashboard Creation Workflow Privacy & Compliance GDPR Compliance Data to Never Track Property Sanitization Testing Analytics Development Mode E2E Testing Debugging PostHog Toolbar Event Debugging Quick Reference Event Checklist by User Lifecycle Dashboard Templates Project Type Key Dashboards SaaS Acquisition, Activation, Engagement, Retention, Revenue E Commerce Conversion Funnel, Product Performance, Customer LTV Content Consumption, Engagement, Growth AI/LLM Usage, Quality, Cost Mobile App Installs, Onboarding, DAU/MAU, Crashes Properties to Always Include

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