Omnibus Instrument Product Analytics

PostHogOfficialCreated by PostHog

Skill
Tool integration
Data and AI
MIT
Low risk

From the author

Add PostHog product analytics events to track user behavior. Use after implementing new features or reviewing PRs to ensure meaningful user actions are captured. Also handles initial PostHog SDK setup if not yet installed.

— the description by PostHog

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

This skill provides a structured, step-by-step procedure for integrating PostHog product analytics into a wide variety of web, mobile, and backend frameworks. It handles the full lifecycle of the integration, from detecting the project's technology stack and installing the necessary SDKs to implementing event tracking, user identification, and error monitoring. The skill emphasizes non-intrusive changes, ensuring that new analytics code is added alongside existing logic without disrupting the project's architecture.

What it does

Detects the project framework and language to determine the correct PostHog SDK.
Installs the required PostHog SDK package automatically.
Initializes the PostHog instance according to framework-specific best practices.
Implements targeted event tracking for key user actions and business logic.
Configures user identification flows for login and signup events.
Sets up environment variables for secure API key and host management.

When to use it

After implementing new features that require tracking for user engagement analysis.
When reviewing pull requests to ensure critical user behaviors are being captured.
When setting up product analytics for a new project from scratch.
When migrating or adding analytics to an existing application.

Advantages

Supports a broad range of modern frontend, backend, and mobile frameworks.
Ensures consistent event naming and property capture across the codebase.
Maintains architectural integrity by requiring minimal, targeted code additions.
Automates the tedious aspects of SDK initialization and environment configuration.

Usage examples

“Add PostHog analytics to my Next.js project.”: The agent will detect the Next.js environment, install the PostHog SDK, initialize it in the appropriate root file, and guide you through adding capture calls to key user flows.
“I need to track user signups in my Django application using PostHog.”: The agent will identify the Django setup, configure the PostHog Python SDK, and implement identify calls within your authentication logic.

Install

Download the skill as a ZIP:
https://autogineer.com/agent-skills/posthog/omnibus-instrument-product-analytics/download

Unzip it into the cross-client skills folder of your project:

mkdir -p .agents/skills && unzip omnibus-instrument-product-analytics.zip -d .agents/skills

Documentation by PostHog

Add PostHog product analytics events

Use this skill to add product analytics events (capture calls) that track meaningful user actions in new or changed code. Use it after implementing features or reviewing PRs to ensure key user behaviors are captured. If PostHog is not yet installed, this skill also covers initial SDK setup. Supports any framework or language.

Supported frameworks: Next.js, React Router, Nuxt, Vue, TanStack Start, SvelteKit, Astro, Angular, Django, Flask, FastAPI, Laravel, Ruby on Rails, Android, iOS, React Native, Expo, and more.

Instructions

Follow these steps IN ORDER:

STEP 1: Analyze the codebase and detect the platform.

Look for dependency files (package.json, requirements.txt, Gemfile, composer.json, go.mod, etc.) to determine the framework and language.
Look for lockfiles (pnpm-lock.yaml, package-lock.json, yarn.lock, bun.lockb) to determine the package manager.
Check for existing PostHog setup. If PostHog is already installed and initialized, skip to STEP 5.

STEP 2: Research integration. (Skip if PostHog is already set up.) 2.1. Find the reference file below that matches the detected framework — it is the source of truth for SDK initialization, provider setup, and event capture patterns. Read it now. 2.2. If no reference matches, fall back to your general knowledge and web search. Use posthog.com/docs as the primary search source.

STEP 3: Install the PostHog SDK. (Skip if PostHog is already set up.)

Add the PostHog SDK package for the detected platform. Do not manually edit package.json — use the package manager's install command.
Always install packages as a background task. Don't await completion; proceed with other work immediately after starting the installation.

STEP 4: Initialize PostHog. (Skip if PostHog is already set up.)

Follow the framework reference for where and how to initialize. This varies significantly by framework (e.g., instrumentation-client.ts for Next.js 15.3+, AppConfig.ready() for Django, create_app() for Flask).

STEP 5: Plan event tracking.

From the project's file list, select between 10 and 15 files that might have interesting business value for event tracking, especially conversion and churn events.
Also look for files related to login that could be used for identifying users, along with error handling.
Find any existing posthog.capture() code. Make note of event name formatting. Don't duplicate existing events; supplement them.
Track actions only, not pageviews (those can be captured automatically). Exceptions can be made for "viewed"-type events at the top of a conversion funnel.
Server-side events are REQUIRED if the project includes any instrumentable server-side code (API routes, server actions, webhook handlers, payment/checkout completion, authentication endpoints).

STEP 6: Implement event capture.

For each planned event, add posthog.capture() calls with useful properties.
If a file already has existing integration code for other tools or services, don't overwrite or remove that code. Place PostHog code below it.
Do not alter the fundamental architecture of existing files. Make additions minimal and targeted.
You must read a file immediately before attempting to write it.

STEP 7: Identify users.

Add PostHog identify() calls on the client side during login and signup events. Use the contents of login and signup forms to identify users on submit.
If both frontend and backend exist, pass the client-side session and distinct ID using X-POSTHOG-DISTINCT-ID and X-POSTHOG-SESSION-ID headers to the server-side code. On the server side, make sure events have a matching distinct ID.

STEP 8: Add error tracking.

Add PostHog exception capture error tracking to relevant files, particularly around critical user flows and API boundaries.

STEP 9: Set up environment variables.

If an env-file-tools MCP server is connected, use check_env_keys to see which keys already exist, then use set_env_values to create or update the PostHog API key and host.
Reference these environment variables in code instead of hardcoding them.

STEP 10: Verify and clean up.

Check the project for errors. Look for type checking or build scripts in package.json.
Ensure any components created were actually used.
Run any linter or prettier-like scripts found in the package.json.

Reference files

references/EXAMPLE-next-app-router.md - next-app-router example project code
references/EXAMPLE-next-pages-router.md - next-pages-router example project code
references/EXAMPLE-react-react-router-6.md - react-react-router-6 example project code
references/EXAMPLE-react-react-router-7-framework.md - react-react-router-7-framework example project code
references/EXAMPLE-react-react-router-7-data.md - react-react-router-7-data example project code
references/EXAMPLE-react-react-router-7-declarative.md - react-react-router-7-declarative example project code
references/EXAMPLE-nuxt-3.6.md - nuxt-3.6 example project code
references/EXAMPLE-nuxt-4.md - nuxt-4 example project code
references/EXAMPLE-vue-3.md - vue-3 example project code
references/EXAMPLE-react-tanstack-router-file-based.md - react-tanstack-router-file-based example project code
references/EXAMPLE-react-tanstack-router-code-based.md - react-tanstack-router-code-based example project code
references/EXAMPLE-tanstack-start.md - tanstack-start example project code
references/EXAMPLE-sveltekit.md - sveltekit example project code
references/EXAMPLE-astro-static.md - astro-static example project code
references/EXAMPLE-astro-view-transitions.md - astro-view-transitions example project code
references/EXAMPLE-astro-ssr.md - astro-ssr example project code
references/EXAMPLE-astro-hybrid.md - astro-hybrid example project code
references/EXAMPLE-angular.md - angular example project code
references/EXAMPLE-django.md - django example project code
references/EXAMPLE-flask.md - flask example project code
references/EXAMPLE-fastapi.md - fastapi example project code
references/EXAMPLE-python.md - python example project code
references/EXAMPLE-laravel.md - laravel example project code
references/EXAMPLE-ruby-on-rails.md - ruby-on-rails example project code
references/EXAMPLE-ruby.md - ruby example project code
references/EXAMPLE-android.md - android example project code
references/EXAMPLE-swift.md - swift example project code
references/EXAMPLE-react-native.md - react-native example project code
references/EXAMPLE-expo.md - expo example project code
references/next-js.md - Next.js - docs
references/react-router-v6.md - React router v6 - docs
references/react-router-v7-framework-mode.md - React router v7 framework mode (remix v3) - docs
references/react-router-v7-data-mode.md - React router v7 data mode - docs
references/react-router-v7-declarative-mode.md - React router v7 declarative mode - docs
references/nuxt-js-3-6.md - Nuxt.js (v3.0 to v3.6) - docs
references/nuxt-js.md - Nuxt.js - docs
references/vue-js.md - Vue.js - docs
references/tanstack-start.md - Tanstack start - docs
references/svelte.md - Svelte - docs
references/astro.md - Astro - docs
references/angular.md - Angular - docs
references/django.md - Django - docs
references/flask.md - Flask - docs
references/python.md - Python - docs
references/posthog-python.md - PostHog python SDK
references/laravel.md - Laravel - docs
references/ruby-on-rails.md - Ruby on rails - docs
references/ruby.md - Ruby - docs
references/android.md - Android - docs
references/ios.md - Ios - docs
references/react-native.md - React native - docs
references/identify-users.md - Identify users - docs

Each framework reference contains SDK-specific installation, initialization, and usage patterns. Find the one matching the user's stack.

Key principles

Environment variables: Always use environment variables for PostHog keys. Never hardcode them.
Minimal changes: Add PostHog code alongside existing integrations. Don't replace or restructure existing code.
Match the docs: Follow the framework reference's initialization and capture patterns exactly.

Files

ATTRIBUTION.mdAdded by AutoGineer966 B
LICENSELicence file added by AutoGineer1.0 KiB
SKILL.md8.5 KiB
references/EXAMPLE-android.md49.7 KiB
references/EXAMPLE-angular.md23.4 KiB
references/EXAMPLE-astro-hybrid.md26.8 KiB
references/EXAMPLE-astro-ssr.md26.7 KiB
references/EXAMPLE-astro-static.md19.4 KiB
references/EXAMPLE-astro-view-transitions.md23.1 KiB
references/EXAMPLE-django.md30.0 KiB
references/EXAMPLE-expo.md35.5 KiB
references/EXAMPLE-fastapi.md40.9 KiB
references/EXAMPLE-flask.md32.0 KiB
references/EXAMPLE-javascript-node.md9.0 KiB
references/EXAMPLE-javascript-web.md11.7 KiB
references/EXAMPLE-laravel.md59.5 KiB
references/EXAMPLE-next-app-router.md17.3 KiB
references/EXAMPLE-next-pages-router.md18.9 KiB
references/EXAMPLE-nuxt-3.6.md22.1 KiB
references/EXAMPLE-nuxt-4.md28.7 KiB
references/EXAMPLE-python.md11.6 KiB
references/EXAMPLE-react-native.md46.4 KiB
references/EXAMPLE-react-react-router-6.md13.5 KiB
references/EXAMPLE-react-react-router-7-data.md20.1 KiB
references/EXAMPLE-react-react-router-7-declarative.md15.0 KiB
references/EXAMPLE-react-react-router-7-framework.md32.2 KiB
references/EXAMPLE-react-tanstack-router-code-based.md19.2 KiB
references/EXAMPLE-react-tanstack-router-file-based.md18.0 KiB
references/EXAMPLE-react-vite.md12.4 KiB
references/EXAMPLE-ruby-on-rails.md37.6 KiB
references/EXAMPLE-ruby.md10.3 KiB
references/EXAMPLE-sveltekit.md18.4 KiB
references/EXAMPLE-swift.md18.6 KiB
references/EXAMPLE-tanstack-start.md28.4 KiB
references/EXAMPLE-vue-3.md17.9 KiB
references/android.md21.7 KiB
references/angular.md12.5 KiB
references/astro.md8.3 KiB
references/django.md6.7 KiB
references/flask.md2.9 KiB
references/identify-users.md8.1 KiB
references/ios.md5.4 KiB
references/js.md12.3 KiB
references/laravel.md2.1 KiB
references/next-js.md12.5 KiB
references/node.md28.8 KiB
references/nuxt-js-3-6.md6.6 KiB
references/nuxt-js.md7.2 KiB
references/posthog-js.md42.3 KiB
references/posthog-node.md23.4 KiB
references/posthog-python.md31.3 KiB
references/python.md31.1 KiB
references/react-native.md43.8 KiB
references/react-router-v6.md11.6 KiB
references/react-router-v7-data-mode.md11.4 KiB
references/react-router-v7-declarative-mode.md11.6 KiB
references/react-router-v7-framework-mode.md14.9 KiB
references/react.md18.5 KiB
references/ruby-on-rails.md10.6 KiB
references/ruby.md18.9 KiB
references/svelte.md7.2 KiB
references/tanstack-start.md5.1 KiB
references/vue-js.md9.1 KiB

references/EXAMPLE-astro-view-transitions.md

PostHog astro-view-transitions Example Project

Repository: https://github.com/PostHog/context-mill Path: basics/astro-view-transitions

README.md

PostHog Astro View Transitions Example

This is an Astro example demonstrating PostHog integration with View Transitions (ClientRouter) for SPA-like navigation.

It uses the PostHog web snippet with special handling to prevent stack overflow errors during soft navigation, and shows how to:

Initialize PostHog with an initialization guard for View Transitions
Track pageviews automatically during soft navigation
Identify users after login
Track custom events from pages
Capture errors via posthog.captureException()
Reset PostHog state on logout

Features

View Transitions: Smooth client-side navigation with <ClientRouter />
Product analytics: Track login and burrito consideration events
Automatic pageview tracking: Uses capture_pageview: 'history_change' for soft navigation
Session replay: Enabled via PostHog snippet configuration
Error tracking: Manual error capture sent to PostHog
Simple auth flow: Demo login using localStorage

Getting started

1. Install dependencies

npm install
# or
pnpm install

2. Configure environment variables

Create a .env file in the project root:

PUBLIC_POSTHOG_PROJECT_TOKEN=your_posthog_project_token
PUBLIC_POSTHOG_HOST=https://us.i.posthog.com

Get your PostHog project token from your project settings in PostHog.

3. Run the development server

npm run dev
# or
pnpm dev

Open http://localhost:4321 in your browser.

Project structure

src/
  components/
    posthog.astro      # PostHog snippet WITH initialization guard
    Header.astro       # Navigation + logout, uses astro:page-load event
  layouts/
    PostHogLayout.astro # Root layout with <ClientRouter /> and PostHog
  lib/
    auth.ts            # Auth utilities (localStorage-based)
  pages/
    index.astro        # Login form, identifies user + captures 'user_logged_in'
    burrito.astro      # Burrito consideration demo, captures 'burrito_considered'
    profile.astro      # Profile + error tracking demo
  styles/
    global.css         # Global styles + view transition animations

Key integration points

PostHog initialization with View Transitions (`src/components/posthog.astro`)

When using Astro's View Transitions (ClientRouter), you must wrap the PostHog initialization with a guard to prevent stack overflow errors:

<script is:inline>
  // IMPORTANT: Guard against multiple initializations during view transitions
  if (!window.__posthog_initialized) {
    window.__posthog_initialized = true;
    !function(t,e){...}(document,window.posthog||[]);
    posthog.init('<ph_project_token>', {
      api_host: 'https://us.i.posthog.com',
      defaults: '2026-01-30',
      // IMPORTANT: Use 'history_change' for automatic pageview tracking during soft navigation
      capture_pageview: 'history_change'
    })
  }
</script>

Without this guard, ClientRouter's soft navigation can re-execute the inline script during page transitions, causing a stack overflow error.

The capture_pageview: 'history_change' option ensures pageviews are tracked automatically as users navigate between pages.

Layout with ClientRouter (`src/layouts/PostHogLayout.astro`)

The layout includes Astro's ClientRouter for smooth page transitions:

---
import { ClientRouter } from 'astro:transitions';
import PostHog from '../components/posthog.astro';
---
<html>
  <head>
    <ClientRouter />
    <PostHog />
  </head>
  ...
</html>

Handling View Transitions in scripts

When using View Transitions, you need to set up event listeners after each page navigation:

function setupPage() {
  // Your setup code here
}

// Run on initial page load
document.addEventListener("DOMContentLoaded", setupPage);

// Run after view transitions complete (for soft navigation)
document.addEventListener("astro:page-load", setupPage);

User identification (`src/pages/index.astro`)

After a successful "login", the app identifies the user and captures a login event:

window.posthog?.identify(username);
window.posthog?.capture("user_logged_in");

Event tracking (`src/pages/burrito.astro`)

The burrito page tracks a custom event when a user "considers" the burrito:

window.posthog?.capture("burrito_considered", {
  total_considerations: newCount,
  username: currentUser,
});

Logout and session reset (`src/components/Header.astro`)

On logout, both the local auth state and PostHog state are cleared:

window.posthog?.capture("user_logged_out");
localStorage.removeItem("currentUser");
window.posthog?.reset();

Scripts

# Run dev server
npm run dev

# Build for production
npm run build

# Preview production build
npm run preview

Learn more

.env.example

PUBLIC_POSTHOG_PROJECT_TOKEN=your_posthog_project_token_here
PUBLIC_POSTHOG_HOST=https://us.i.posthog.com

astro.config.mjs

import { defineConfig } from "astro/config";

export default defineConfig({});

src/components/Header.astro

---
// Header component with navigation and logout functionality
// Works with View Transitions by using data-astro-reload for logout
---
<header class="header">
  <div class="header-container">
    <nav>
      <a href="/">Home</a>
      <a href="/burrito" class="auth-link" style="display: none;">Burrito Consideration</a>
      <a href="/profile" class="auth-link" style="display: none;">Profile</a>
    </nav>
    <div class="user-section">
      <span class="welcome-text" style="display: none;">Welcome, <span class="username"></span>!</span>
      <span class="not-logged-in">Not logged in</span>
      <button class="btn-logout" style="display: none;">Logout</button>
    </div>
  </div>
</header>

<script is:inline>
  function updateHeader() {
    const currentUser = localStorage.getItem('currentUser');
    const authLinks = document.querySelectorAll('.auth-link');
    const welcomeText = document.querySelector('.welcome-text');
    const notLoggedIn = document.querySelector('.not-logged-in');
    const logoutBtn = document.querySelector('.btn-logout');
    const usernameSpan = document.querySelector('.username');

    if (currentUser) {
      authLinks.forEach(link => link.style.display = 'inline');
      welcomeText.style.display = 'inline';
      notLoggedIn.style.display = 'none';
      logoutBtn.style.display = 'inline';
      usernameSpan.textContent = currentUser;
    } else {
      authLinks.forEach(link => link.style.display = 'none');
      welcomeText.style.display = 'none';
      notLoggedIn.style.display = 'inline';
      logoutBtn.style.display = 'none';
    }
  }

  function handleLogout() {
    const currentUser = localStorage.getItem('currentUser');
    if (currentUser) {
      window.posthog?.capture('user_logged_out');
    }
    localStorage.removeItem('currentUser');
    localStorage.removeItem('burritoConsiderations');
    // IMPORTANT: Reset the PostHog instance to clear the user session
    window.posthog?.reset();
    window.location.href = '/';
  }

  function setupHeader() {
    updateHeader();
    const logoutBtn = document.querySelector('.btn-logout');
    // Remove existing listeners to prevent duplicates during view transitions
    logoutBtn?.removeEventListener('click', handleLogout);
    logoutBtn?.addEventListener('click', handleLogout);
  }

  // Run on initial page load
  document.addEventListener('DOMContentLoaded', setupHeader);

  // Run after view transitions complete (for soft navigation)
  document.addEventListener('astro:page-load', setupHeader);

  // Listen for storage changes (login/logout in other tabs)
  window.addEventListener('storage', updateHeader);
</script>

<style>
  .header {
    background-color: #333;
    color: white;
    padding: 1rem;
  }

  .header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .header nav {
    display: flex;
    gap: 1rem;
  }

  .header a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s;
  }

  .header a:hover {
    background-color: #555;
    text-decoration: none;
  }

  .user-section {
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .btn-logout {
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
  }

  .btn-logout:hover {
    background-color: #c82333;
  }
</style>

src/components/posthog.astro

---
// PostHog analytics snippet with View Transitions support
// Uses is:inline to prevent Astro from processing the script
// Includes initialization guard to prevent stack overflow with ClientRouter
---
<script is:inline define:vars={{ apiKey: import.meta.env.PUBLIC_POSTHOG_PROJECT_TOKEN, apiHost: import.meta.env.PUBLIC_POSTHOG_HOST }}>
  // IMPORTANT: Guard against multiple initializations during view transitions
  // Without this guard, ClientRouter's soft navigation can re-execute the inline script
  // during page transitions, causing a stack overflow error.
  if (!window.__posthog_initialized) {
    window.__posthog_initialized = true;
    !function(t,e){var o,n,p,r;e.__SV||(window.posthog=e,e._i=[],e.init=function(i,s,a){function g(t,e){var o=e.split(".");2==o.length&&(t=t[o[0]],e=o[1]),t[e]=function(){t.push([e].concat(Array.prototype.slice.call(arguments,0)))}}(p=t.createElement("script")).type="text/javascript",p.crossOrigin="anonymous",p.async=!0,p.src=s.api_host+"/static/array.js",(r=t.getElementsByTagName("script")[0]).parentNode.insertBefore(p,r);var u=e;for(void 0!==a?u=e[a]=[]:a="posthog",u.people=u.people||[],u.toString=function(t){var e="posthog";return"posthog"!==a&&(e+="."+a),t||(e+=" (stub)"),e},u.people.toString=function(){return u.toString(1)+".people (stub)"},o="capture identify alias people.set people.set_once set_config register register_once unregister opt_out_capturing has_opted_out_capturing opt_in_capturing reset isFeatureEnabled onFeatureFlags getFeatureFlag getFeatureFlagPayload reloadFeatureFlags group updateEarlyAccessFeatureEnrollment getEarlyAccessFeatures getActiveMatchingSurveys getSurveys getNextSurveyStep onSessionId".split(" "),n=0;n<o.length;n++)g(u,o[n]);e._i.push([i,s,a])},e.__SV=1)}(document,window.posthog||[]);
    posthog.init(apiKey || '', {
      api_host: apiHost || 'https://us.i.posthog.com',
      defaults: '2026-01-30',
      // IMPORTANT: Use 'history_change' to automatically track pageviews during soft navigation
      capture_pageview: 'history_change'
    })
  }
</script>

src/layouts/PostHogLayout.astro

---
import { ClientRouter } from 'astro:transitions';
import PostHog from '../components/posthog.astro';
import Header from '../components/Header.astro';
import '../styles/global.css';

interface Props {
  title: string;
}

const { title } = Astro.props;
---
<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Astro PostHog Integration with View Transitions" />
    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
    <title>{title}</title>
    <ClientRouter />
    <PostHog />
  </head>
  <body>
    <Header />
    <main>
      <slot />
    </main>
  </body>
</html>

src/lib/auth.ts

// Client-side auth utilities for localStorage-based authentication

export interface User {
  username: string;
  burritoConsiderations: number;
}

export function getCurrentUser(): User | null {
  if (typeof window === "undefined") return null;

  const username = localStorage.getItem("currentUser");
  if (!username) return null;

  const considerations = parseInt(
    localStorage.getItem("burritoConsiderations") || "0",
    10,
  );

  return {
    username,
    burritoConsiderations: considerations,
  };
}

export function login(username: string, password: string): boolean {
  if (!username || !password) return false;

  localStorage.setItem("currentUser", username);
  // Initialize burrito considerations if not set
  if (!localStorage.getItem("burritoConsiderations")) {
    localStorage.setItem("burritoConsiderations", "0");
  }

  return true;
}

export function logout(): void {
  localStorage.removeItem("currentUser");
  localStorage.removeItem("burritoConsiderations");
}

export function incrementBurritoConsiderations(): number {
  const current = parseInt(
    localStorage.getItem("burritoConsiderations") || "0",
    10,
  );
  const newCount = current + 1;
  localStorage.setItem("burritoConsiderations", newCount.toString());
  return newCount;
}

src/pages/burrito.astro

---
import PostHogLayout from '../layouts/PostHogLayout.astro';
---
<PostHogLayout title="Burrito Consideration - Astro PostHog with View Transitions">
  <div class="container">
    <h1>Burrito consideration zone</h1>
    <p>Take a moment to truly consider the potential of burritos.</p>

    <div style="text-align: center;">
      <button id="consider-btn" class="btn-burrito">
        I have considered the burrito potential
      </button>

      <p id="success-message" class="success" style="display: none;">
        Thank you for your consideration! Count: <span id="consideration-count"></span>
      </p>
    </div>

    <div class="stats">
      <h3>Consideration stats</h3>
      <p>Total considerations: <span id="total-considerations">0</span></p>
    </div>
  </div>
</PostHogLayout>

<script is:inline>
  function checkAuth() {
    const currentUser = localStorage.getItem('currentUser');
    if (!currentUser) {
      window.location.href = '/';
      return false;
    }
    return true;
  }

  function updateStats() {
    const count = localStorage.getItem('burritoConsiderations') || '0';
    const totalElement = document.getElementById('total-considerations');
    if (totalElement) {
      totalElement.textContent = count;
    }
  }

  function handleConsideration() {
    const currentUser = localStorage.getItem('currentUser');
    if (!currentUser) return;

    // Increment the count
    const currentCount = parseInt(localStorage.getItem('burritoConsiderations') || '0', 10);
    const newCount = currentCount + 1;
    localStorage.setItem('burritoConsiderations', newCount.toString());

    // Update the UI
    updateStats();

    const successMessage = document.getElementById('success-message');
    const considerationCount = document.getElementById('consideration-count');
    if (considerationCount) {
      considerationCount.textContent = newCount;
    }
    if (successMessage) {
      successMessage.style.display = 'block';

      // Hide success message after 2 seconds
      setTimeout(() => {
        successMessage.style.display = 'none';
      }, 2000);
    }

    // Capture burrito consideration event in PostHog
    window.posthog?.capture('burrito_considered', {
      total_considerations: newCount,
      username: currentUser
    });
  }

  function setupBurritoPage() {
    if (!checkAuth()) return;

    updateStats();
    const btn = document.getElementById('consider-btn');
    // Remove existing listener to prevent duplicates during view transitions
    btn?.removeEventListener('click', handleConsideration);
    btn?.addEventListener('click', handleConsideration);
  }

  // Run on initial page load
  document.addEventListener('DOMContentLoaded', setupBurritoPage);

  // Run after view transitions complete (for soft navigation)
  document.addEventListener('astro:page-load', setupBurritoPage);
</script>

src/pages/index.astro

---
import PostHogLayout from '../layouts/PostHogLayout.astro';
---
<PostHogLayout title="Home - Astro PostHog with View Transitions">
  <div class="container">
    <div id="logged-in-view" style="display: none;">
      <h1>Welcome back, <span id="welcome-username"></span>!</h1>
      <p>You are now logged in. Feel free to explore:</p>
      <ul>
        <li>Consider the potential of burritos</li>
        <li>View your profile and statistics</li>
      </ul>
    </div>

    <div id="logged-out-view">
      <h1>Welcome to Burrito Consideration App</h1>
      <p>Please sign in to begin your burrito journey</p>

      <form id="login-form" class="form">
        <div class="form-group">
          <label for="username">Username:</label>
          <input
            type="text"
            id="username"
            placeholder="Enter any username"
            required
          />
        </div>

        <div class="form-group">
          <label for="password">Password:</label>
          <input
            type="password"
            id="password"
            placeholder="Enter any password"
            required
          />
        </div>

        <p id="error-message" class="error" style="display: none;"></p>

        <button type="submit" class="btn-primary">Sign In</button>
      </form>

      <p class="note">
        Note: This is a demo app. Use any username and password to sign in.
      </p>
    </div>
  </div>
</PostHogLayout>

<script is:inline>
  function updateView() {
    const currentUser = localStorage.getItem('currentUser');
    const loggedInView = document.getElementById('logged-in-view');
    const loggedOutView = document.getElementById('logged-out-view');
    const welcomeUsername = document.getElementById('welcome-username');

    if (currentUser) {
      loggedInView.style.display = 'block';
      loggedOutView.style.display = 'none';
      welcomeUsername.textContent = currentUser;
    } else {
      loggedInView.style.display = 'none';
      loggedOutView.style.display = 'block';
    }
  }

  function handleLogin(event) {
    event.preventDefault();

    const username = document.getElementById('username').value;
    const password = document.getElementById('password').value;
    const errorMessage = document.getElementById('error-message');

    if (!username || !password) {
      errorMessage.textContent = 'Please provide both username and password';
      errorMessage.style.display = 'block';
      return;
    }

    // Client-side only fake auth - store in localStorage
    localStorage.setItem('currentUser', username);
    if (!localStorage.getItem('burritoConsiderations')) {
      localStorage.setItem('burritoConsiderations', '0');
    }

    // Identify the user in PostHog (once on login is enough)
    window.posthog?.identify(username);
    window.posthog?.capture('user_logged_in');

    // Clear form
    document.getElementById('username').value = '';
    document.getElementById('password').value = '';
    errorMessage.style.display = 'none';

    // Update view
    updateView();

    // Trigger header update
    window.dispatchEvent(new Event('storage'));
  }

  function setupIndexPage() {
    updateView();
    const form = document.getElementById('login-form');
    // Remove existing listener to prevent duplicates during view transitions
    form?.removeEventListener('submit', handleLogin);
    form?.addEventListener('submit', handleLogin);
  }

  // Run on initial page load
  document.addEventListener('DOMContentLoaded', setupIndexPage);

  // Run after view transitions complete (for soft navigation)
  document.addEventListener('astro:page-load', setupIndexPage);

  // Listen for storage changes
  window.addEventListener('storage', updateView);
</script>

src/pages/profile.astro

---
import PostHogLayout from '../layouts/PostHogLayout.astro';
---
<PostHogLayout title="Profile - Astro PostHog with View Transitions">
  <div class="container">
    <h1>User Profile</h1>

    <div class="stats">
      <h2>Your Information</h2>
      <p><strong>Username:</strong> <span id="profile-username"></span></p>
      <p><strong>Burrito Considerations:</strong> <span id="profile-considerations">0</span></p>
    </div>

    <div style="margin-top: 2rem;">
      <h3>Your Burrito Journey</h3>
      <p id="journey-message"></p>
    </div>

    <div style="margin-top: 2rem;">
      <h3>Error Tracking Demo</h3>
      <p>Click the button below to trigger a test error and send it to PostHog:</p>
      <button id="error-btn" class="btn-error">
        Trigger Test Error
      </button>
      <p id="error-feedback" class="success" style="display: none;">
        Error captured and sent to PostHog!
      </p>
    </div>
  </div>
</PostHogLayout>

<script is:inline>
  function checkAuth() {
    const currentUser = localStorage.getItem('currentUser');
    if (!currentUser) {
      window.location.href = '/';
      return false;
    }
    return true;
  }

  function updateProfile() {
    const username = localStorage.getItem('currentUser') || '';
    const considerations = parseInt(localStorage.getItem('burritoConsiderations') || '0', 10);

    const usernameEl = document.getElementById('profile-username');
    const considerationsEl = document.getElementById('profile-considerations');
    const journeyMessage = document.getElementById('journey-message');

    if (usernameEl) usernameEl.textContent = username;
    if (considerationsEl) considerationsEl.textContent = considerations.toString();

    // Update journey message based on consideration count
    if (journeyMessage) {
      if (considerations === 0) {
        journeyMessage.textContent = "You haven't considered any burritos yet. Visit the Burrito Consideration page to start!";
      } else if (considerations === 1) {
        journeyMessage.textContent = "You've considered the burrito potential once. Keep going!";
      } else if (considerations < 5) {
        journeyMessage.textContent = "You're getting the hang of burrito consideration!";
      } else if (considerations < 10) {
        journeyMessage.textContent = "You're becoming a burrito consideration expert!";
      } else {
        journeyMessage.textContent = "You are a true burrito consideration master!";
      }
    }
  }

  function triggerTestError() {
    try {
      throw new Error('Test error for PostHog error tracking');
    } catch (err) {
      // Capture the error in PostHog
      window.posthog?.captureException(err);
      console.error('Captured error:', err);

      // Show feedback to user
      const feedback = document.getElementById('error-feedback');
      if (feedback) {
        feedback.style.display = 'block';
        setTimeout(() => {
          feedback.style.display = 'none';
        }, 3000);
      }
    }
  }

  function setupProfilePage() {
    if (!checkAuth()) return;

    updateProfile();
    const btn = document.getElementById('error-btn');
    // Remove existing listener to prevent duplicates during view transitions
    btn?.removeEventListener('click', triggerTestError);
    btn?.addEventListener('click', triggerTestError);
  }

  // Run on initial page load
  document.addEventListener('DOMContentLoaded', setupProfilePage);

  // Run after view transitions complete (for soft navigation)
  document.addEventListener('astro:page-load', setupProfilePage);
</script>

Requirements and compatibility

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Needs: Needs an MCP server, Needs an API key, Needs Python, Needs Node.js

Security

What our scanner noticed· Low risk

Instructions that use the network

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

Attribution and licence

Created by

PostHog

Publisher

PostHog (Official)

Source

PostHog/skills · skills/posthog/integration/skills/all · commit a5d30e7

Licence

MIT License (redistribution allowed)

LICENSE (added by AutoGineer from LICENSE)
ATTRIBUTION.md (written by AutoGineer)

Synced

2026-11-09

Also distributed in

PostHog/skills

AutoGineer is not affiliated with or endorsed by PostHog or PostHog.

Download ZIP

The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download omnibus-instrument-product-analytics.zip