posthog▌

### PostHog Integration for React Router v6 - Follow the four-step setup workflow to integrate PostHog analytics into your React Router v6 application. - Use environment variables for API keys and implement analytics capture directly within event handlers rather than useEffect. - Identify users during login and signup, using specific headers to maintain session correlation between frontend and backend.

### PostHog Feature Flags in Rust - Integrate PostHog flags into Rust applications using environment variables for secure API key management. - Implement server-side flag evaluation to ensure consistent user experiences and prevent UI flickering. - Utilize available PostHog MCP tools to programmatically manage, list, and update feature flags directly from your development environment.

### PostHog Web Error Tracking - Initialize posthog-js before other methods and enable exception autocapture to monitor browser errors automatically. - Upload source maps to ensure stack traces are readable and use captureException() within catch blocks for manual error reporting. - Protect user privacy by excluding PII from capture() event properties, using identify() for user-specific data instead.

### PostHog Web Feature Flags - Integrate PostHog flags into JavaScript apps using environment variables for keys and avoiding hardcoded credentials. - Implement boolean flag checks alongside existing logic to minimize code restructuring and maintain clean application flow. - Prioritize server-side flag evaluation to prevent UI flickering and utilize MCP tools for direct flag management within PostHog.

### PostHog Angular Error Tracking - Implement a singleton PosthogService using inject() to wrap the SDK and manage initialization within standalone components. - Enable exception autocapture during SDK initialization and use captureException() for errors caught at specific boundaries. - Secure credentials via environment files and upload source maps to ensure stack traces resolve to original source code.

### PostHog Error Tracking for Next.js - Initialize PostHog in instrumentation-client.ts and enable exception autocapture before implementing manual error tracking. - Upload source maps to ensure stack traces resolve to original source code rather than minified bundles. - Use captureException() within error boundaries and catch blocks to record errors that do not reach the global handler.

### PostHog iOS Feature Flags - Securely manage PostHog keys using environment variables and a dedicated enum to prevent hardcoding sensitive configuration data. - Implement SPM dependencies by creating distinct PBXBuildFile, XCSwiftPackageProductDependency, and XCRemoteSwiftPackageReference objects. - Prioritize server-side flag evaluation to prevent UI flickering and enable outgoing network connections for sandboxed applications.

### feature-flags-android Overview - PostHog feature flags for Android applications - This skill helps you add PostHog feature flags to Android applications. - `references/android.md` - Android feature flags installation - docs

### PostHog Flutter Error Tracking - Integrate PostHog by enabling exception autocapture during SDK initialization before implementing manual error reporting. - Use environment variables for API keys and host URLs to maintain security and avoid hardcoding sensitive configuration data. - Upload source maps to ensure minified stack traces are resolved into readable code for effective debugging and issue monitoring.

### PostHog React Feature Flags - Use useFeatureFlagEnabled or useFeatureFlagPayload hooks to manage flags while handling loading states and external synchronization. - Secure PostHog keys using environment variables and prefer server-side flag evaluation to prevent UI flickering during rendering. - Avoid using useEffect for state management or event handling; reserve it strictly for synchronizing with external systems.