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Omnibus Instrument Integration

PostHogOfficialCreated by PostHog

  • Skill
  • Tool integration
  • Data and AI
  • MIT
  • Low risk
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From the author

Add PostHog SDK integration to your application. Use when setting up PostHog for the first time or reviewing PRs that need PostHog initialization. Covers SDK installation, provider setup, and basic configuration for any framework.
— the description by PostHog

AutoGineer summary

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

This skill provides a structured, multi-step procedure for integrating the PostHog SDK into a wide variety of software projects. It guides the agent through detecting the project's framework, installing the appropriate SDK, initializing the client, and configuring environment variables. By leveraging a library of framework-specific reference files, the skill ensures that PostHog is implemented according to best practices for each supported platform, including web, mobile, and backend environments.

What it does

  • Detects the project's framework and package manager automatically.
  • Installs the correct PostHog SDK for the identified platform.
  • Initializes the PostHog client using framework-specific patterns.
  • Configures environment variables for API keys and host settings.
  • Implements user identification logic for login and signup events.
  • Verifies the integration and performs necessary cleanup.

When to use it

  • When setting up PostHog in a project for the first time.
  • When reviewing pull requests that require PostHog initialization.
  • When migrating or adding analytics to an existing codebase.
  • When you need to ensure PostHog is configured consistently across different frameworks.

Advantages

  • Supports a broad range of frameworks and languages.
  • Ensures secure configuration by enforcing the use of environment variables.
  • Maintains consistency with existing codebase patterns.
  • Reduces manual effort by automating SDK installation and boilerplate setup.

Usage examples

“Add PostHog to my new Next.js project.”
The agent will detect the Next.js framework, install the PostHog SDK, and provide the necessary initialization code in the appropriate file, such as instrumentation-client.ts.
“Help me set up PostHog in our Android app.”
The agent will identify the Android environment, guide the setup in the Application class, and configure the PostHog instance with the required API keys.

Install

  1. Download the skill as a ZIP:

    https://mp-staging.autogineer.com/agent-skills/posthog/omnibus-instrument-integration/download

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

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

Documentation by PostHog

Add PostHog SDK integration

Use this skill to add the PostHog SDK to an application. Use it when setting up PostHog for the first time, or reviewing PRs that need PostHog initialization. Covers SDK installation, provider setup, and basic configuration. Supports any framework or language.

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

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, do not modify its code. Inform the user and skip to verification.

STEP 2: Research integration. 2.1. Find the reference file below that matches the detected framework — it is the source of truth for SDK initialization, provider setup, and configuration 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.

  • 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.

  • 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).

  • Set up the PostHog provider/wrapper component if the framework requires one.

STEP 5: Identify users.

  • Add PostHog identify() calls on the client side during login and signup events.

  • 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.

STEP 6: Set up environment variables.

  • Store the PostHog API key and host in environment variables (e.g. .env or framework-specific env files).

  • Reference these environment variables in code instead of hardcoding them.

STEP 7: 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-react-vite.md - react-vite 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-javascript-node.md - javascript-node example project code

  • references/EXAMPLE-javascript-web.md - javascript-web 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.md - React - 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/js.md - JavaScript web - docs

  • references/posthog-js.md - PostHog JavaScript web SDK

  • references/node.md - Node.js - docs

  • references/posthog-node.md - PostHog Node.js SDK

  • 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 example: Your implementation should follow the example project's patterns as closely as possible.

  • Analytics contract: Treat event names, property names, and feature flag keys as part of an analytics contract. Reuse existing names and patterns found in the project. When introducing new ones, make them clear, descriptive, and consistent with existing conventions.

Files

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 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/all/skills/omnibus-instrument-integration · commit a5d30e7
Licence
MIT License (redistribution allowed)
  • LICENSE (added by AutoGineer from LICENSE)
  • ATTRIBUTION.md (written by AutoGineer)
Synced

AutoGineer is not affiliated with or endorsed by PostHog.

Download ZIP

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