feature-flags▌

### 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 JavaScript Web Integration - Initialize posthog-js in client-side browser environments only, ensuring posthog.init() is called before any other SDK methods. - Use posthog.identify() for PII like emails and names, while keeping posthog.capture() event properties free of sensitive user data. - Follow the four-step integration workflow and use environment variables for keys to maintain security and implementation consistency.

### PostHog Feature Flags for Flutter - Integrate PostHog flags into Flutter apps using environment variables for keys and avoiding hardcoded credentials. - Implement boolean flag checks alongside existing logic to maintain code structure and minimize unnecessary refactoring. - Prioritize server-side flag evaluation to prevent UI flickering and utilize MCP tools for direct flag management.

### PostHog Ruby Error Tracking - Install the posthog-ruby gem and initialize the client using environment variables for API keys and host URLs to ensure security. - Enable exception autocapture for global coverage and use capture_exception in rescue blocks for errors that do not propagate. - Always call client.shutdown in an ensure block for CLI or script applications to prevent event loss before the process exits.

### PostHog React Native Error Tracking - Install posthog-react-native and react-native-svg, using environment variables for project tokens and host URLs. - Enable exception autocapture in the SDK initialization and use captureException() within error boundaries for manual reporting. - Upload source maps to ensure stack traces resolve to original source code and wrap the app with PostHogProvider for full integration.

### PostHog Feature Flags for Elixir - Integrate PostHog flags into Elixir apps using environment variables for keys and server-side evaluation to prevent UI flickering. - Implement feature flags alongside existing logic without restructuring code, defaulting to boolean checks for simplicity. - Utilize available PostHog MCP tools to manage flag lifecycles directly from the development environment instead of the dashboard.

### PostHog Android Error Tracking - Initialize PostHog in the Application class onCreate method using environment variables for keys and host URLs. - Enable exception autocapture for global coverage and use captureException for specific error boundaries and catch blocks. - Upload source maps to resolve minified stack traces and ensure activities have labels for accurate screen view tracking.

### 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.