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PostHog Instrumentation Skill

Help users add PostHog analytics, event tracking, and feature flags to their code.

When to Use

• User asks to "add PostHog" or "add analytics"
• User wants to track events or user actions
• User needs to implement feature flags
• User asks about instrumenting their code

Workflow

1. Identify the framework (React, Next.js, Python, Node.js, etc.)
2. Check for existing PostHog setup
3. Add appropriate instrumentation

Code Patterns

JavaScript/TypeScript

// Event tracking
posthog.capture('button_clicked', { button_name: 'signup' })

// Feature flags
if (posthog.isFeatureEnabled('new-feature')) {
  // Show new feature
}

// User identification
posthog.identify(userId, { email: user.email })

Python

from posthog import Posthog
posthog = Posthog(api_key='<ph_project_api_key>')

# Event tracking
posthog.capture(distinct_id='user_123', event='purchase_completed')

# Feature flags
if posthog.feature_enabled('new-feature', 'user_123'):
    # Show new feature

React

import { usePostHog } from 'posthog-js/react'

function MyComponent() {
  const posthog = usePostHog()

  const handleClick = () => {
    posthog.capture('button_clicked')
  }
}

Best Practices

• Use consistent event naming (snake_case recommended)
• Include relevant properties with events
• Identify users early in their session
• Use feature flags for gradual rollouts

Weekly Installs

455

Repository

posthog/posthog…r-claude

GitHub Stars

10

First Seen

Jan 22, 2026

Security Audits

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Installed on

opencode415

codex410

gemini-cli406

github-copilot400

cursor391

claude-code358