Where should I initialize the PostHog client SDK?

The client-side SDK (posthog-js) must be initialized only in browser contexts as it requires APIs like window and localStorage to function correctly.

Does this skill handle both client and server setup?

Yes, it provides patterns for both posthog-js in the browser and posthog-node for server-side or API route event capture.

Why is the defaults date important in the configuration?

Using defaults: '2026-01-30' ensures your project uses the latest recommended behaviors, including automatic SPA page tracking and improved event handling.

Can I use PostHog for feature flags with this skill?

Yes, PostHog combines analytics and feature flags into one platform, and this skill provides the necessary foundation to use both features immediately.

How do I prevent data loss in serverless environments?

The skill guides you to use posthog.flush(), posthog.shutdown(), or captureImmediate() to ensure events are sent before the serverless function terminates.

PostHog Analytics & Feature Flags Setup

Name: PostHog Analytics & Feature Flags Setup
Author: agents-inc

byagents-inc

0•

分析与监控

Configures PostHog for full-stack product analytics and feature flag management in client and server environments.

This skill automates the end-to-end setup of PostHog, a comprehensive product analytics and feature flag platform. It provides specialized guidance for initializing posthog-js in browser contexts and posthog-node for server-side event capture, ensuring proper event flushing and environment variable configuration. By implementing these patterns, developers can leverage autocapture, session recording, and feature toggles with a generous free tier, all while following strict project conventions and best practices for performance and data reliability.

主要功能

010 GitHub stars

02Automated environment variable mapping for client and server keys

03Implementation of reliable event flushing and captureImmediate patterns

04Client-side PostHogProvider and framework initialization setup

05Standardized user identification and reset flow integration

06Server-side singleton configuration with posthog-node

使用场景

01Setting up server-side event tracking in Node.js or serverless environments

02Initial PostHog integration for a new web application

03Adding feature flag capabilities to an existing React or Next.js project

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add agents-inc/skills api-analytics-setup-posthog

For use in Claude.ai and ChatGPT

Download Skill