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Omnibus Instrument Error Tracking

PostHogOfficialCreated by PostHog

  • Skill
  • Tool integration
  • Data and AI
  • MIT
  • Low risk

From the author

Add PostHog error tracking to capture and monitor exceptions. Use after implementing features or reviewing PRs to ensure errors are tracked with stack traces and source maps. 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 procedure for integrating PostHog error tracking into various software projects. It guides the user through detecting their platform, installing the necessary SDK, enabling automatic exception capture, and implementing manual error reporting in critical code paths. The skill also covers essential configuration steps like setting up environment variables and uploading source maps to ensure stack traces remain readable and actionable.

What it does

  • Detects the project's platform and language to determine the correct PostHog SDK installation path.
  • Automates the installation and initialization of the PostHog SDK.
  • Enables exception autocapture to monitor unhandled errors automatically.
  • Assists in adding manual capture points for specific error boundaries and catch blocks.
  • Configures source map uploads to resolve minified stack traces into readable source code.
  • Ensures secure management of API keys using environment variables.

When to use it

  • After implementing new features to ensure robust error monitoring.
  • During code reviews when identifying areas that lack proper exception handling.
  • When setting up a new project and requiring initial observability infrastructure.
  • When existing error tracking is insufficient or requires migration to PostHog.

Advantages

  • Provides a consistent, step-by-step approach across diverse technology stacks.
  • Reduces manual effort by automating SDK setup and configuration.
  • Improves debugging efficiency by ensuring stack traces are mapped to source code.
  • Promotes security best practices by enforcing the use of environment variables.

Usage examples

“Set up PostHog error tracking for my React project.”
The agent will analyze the project structure, install the PostHog SDK, configure exception autocapture, and guide you through setting up source map uploads.
“I need to add manual error reporting to my Python catch blocks.”
The agent will identify your existing error handling logic and insert the appropriate PostHog captureException calls.

Install

  1. Download the skill as a ZIP:

    https://mp-staging.autogineer.com/agent-skills/posthog/omnibus-instrument-error-tracking/download
  2. Unzip it into the cross-client skills folder of your project:

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

Documentation by PostHog

Add PostHog error tracking

Use this skill to add PostHog error tracking that captures and monitors exceptions in your application. Use it after implementing features or reviewing PRs to ensure errors are tracked with full stack traces and source maps. If PostHog is not yet installed, this skill also covers initial SDK setup. Supports any platform or language.

Supported platforms: React, Next.js, Web (JavaScript), Node.js, Python, Ruby, Ruby on Rails, Go, Angular, Svelte, Nuxt, React Native, Flutter, Android, and Hono.

Instructions

Follow these steps IN ORDER:

STEP 1: Analyze the codebase and detect the platform.

  • Look for dependency files (package.json, requirements.txt, go.mod, Gemfile, composer.json, etc.) to determine the language and framework.

  • Look for lockfiles (pnpm-lock.yaml, package-lock.json, yarn.lock, bun.lockb) to determine the package manager.

  • Check for existing PostHog setup (SDK initialization, env vars, etc.). If PostHog is already installed and initialized, skip to STEP 4.

STEP 2: Research instrumentation. (Skip if PostHog is already set up.) 2.1. Find the reference file below that matches the detected platform — it is the source of truth for SDK initialization, exception autocapture, and framework-specific error tracking 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 and initialize 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.

  • Follow the framework reference for where and how to initialize.

STEP 4: Enable exception autocapture.

  • Follow the platform reference to enable exception autocapture. This automatically captures unhandled exceptions without additional code.

STEP 5: Add manual error captures.

  • Identify error boundaries, catch blocks, and critical user flows where errors should be explicitly captured.

  • Add posthog.captureException() or the platform-equivalent at these locations.

  • Do not alter the fundamental architecture of existing error handling. Make additions minimal and targeted.

  • You must read a file immediately before attempting to write it.

STEP 6: Upload source maps (frontend/mobile only).

  • Configure source map uploads so stack traces resolve to original source code, not minified bundles.

  • Follow the platform-specific reference for upload configuration (build plugins, CI scripts, etc.).

STEP 7: 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 8: 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/react.md - React error tracking installation - docs

  • references/web.md - Web error tracking installation - docs

  • references/nextjs.md - Next.js error tracking installation - docs

  • references/node.md - Node.js error tracking installation - docs

  • references/python.md - Python error tracking installation - docs

  • references/ruby.md - Ruby error tracking installation - docs

  • references/ruby-on-rails.md - Ruby on rails error tracking installation - docs

  • references/go.md - Go error tracking installation - docs

  • references/angular.md - Angular error tracking installation - docs

  • references/svelte.md - Sveltekit error tracking installation - docs

  • references/nuxt.md - Nuxt error tracking installation (v3.7 and above) - docs

  • references/react-native.md - React native error tracking installation - docs

  • references/flutter.md - Flutter error tracking installation - docs

  • references/android.md - Android error tracking installation - docs

  • references/hono.md - Hono error tracking installation - docs

  • references/fingerprints.md - Fingerprints - docs

  • references/alerts.md - Send error tracking alerts - docs

  • references/monitoring.md - Monitor and search issues - docs

  • references/assigning-issues.md - Assign issues to teammates - docs

  • references/upload-source-maps.md - Upload source maps - docs

Each platform reference contains SDK-specific installation and manual capture 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 error tracking alongside existing error handling. Don't replace or restructure existing code.

  • Autocapture first: Enable exception autocapture before adding manual captures.

  • Source maps: Upload source maps so stack traces resolve to original source code, not minified bundles.

  • Manual capture for boundaries: Use captureException() at error boundaries and catch blocks for errors that don't propagate to the global handler.

Files

references/nuxt.md

Nuxt error tracking installation (v3.7 and above) - Docs

  1. 1

    Install the PostHog Nuxt module

    Required

    Install the PostHog Nuxt module using your package manager:

    PostHog AI

    npm
    npm install @posthog/nuxt
    yarn
    yarn add @posthog/nuxt
    pnpm
    pnpm add @posthog/nuxt
    bun
    bun add @posthog/nuxt

    Add the module to your nuxt.config.ts file:

    nuxt.config.ts

    PostHog AI

    export default defineNuxtConfig({
      modules: ['@posthog/nuxt'],
      // Enable source maps generation in both vue and nitro
      sourcemap: {
        client: 'hidden'
      },
      nitro: {
        rollupConfig: {
          output: {
            sourcemapExcludeSources: false,
          },
        },
      },
      posthogConfig: {
        publicKey: '<ph_project_token>', // Find it in project settings https://app.posthog.com/settings/project
        host: 'https://us.i.posthog.com', // Optional: defaults to https://us.i.posthog.com. Use https://eu.i.posthog.com for EU region
        clientConfig: {
          capture_exceptions: true, // Enables automatic exception capture on the client side (Vue)
        },
        serverConfig: {
          enableExceptionAutocapture: true, // Enables automatic exception capture on the server side (Nitro)
        },
        sourcemaps: {
          enabled: true,
          project: '<ph_project_id>', // Your project ID from PostHog settings https://app.posthog.com/settings/environment#variables
          personalApiKey: '<ph_personal_api_key>', // Your personal API key from PostHog settings https://app.posthog.com/settings/user-api-keys (requires organization:read and error_tracking:write scopes)
          releaseName: 'my-application', // Optional: defaults to git repository name
          releaseVersion: '1.0.0', // Optional: defaults to current git commit
        },
      },
    })

    Personal API Key

    Your Personal API Key will require organization:read and error_tracking:write scopes.

    The module will automatically:

    • Initialize PostHog on both Vue (client side) and Nitro (server side)

    • Capture exceptions on both client and server

    • Generate and upload source maps during build

  2. 2

    Manually capturing exceptions

    Optional

    Our module if set up as shown above already captures both client and server side exceptions automatically.

    To send errors manually on the client side, import it and use the captureException method like this:

    Vue

    PostHog AI

    <script>
      const { $posthog } = useNuxtApp()
      if ($posthog) {
        const posthog = $posthog()
        posthog.captureException(new Error("Important error message"))
      }
    </script>

    On the server side instantiate PostHog using:

    server/api/example.js

    PostHog AI

    const runtimeConfig = useRuntimeConfig()
    const posthog = new PostHog(
      runtimeConfig.public.posthogPublicKey,
      {
        host: runtimeConfig.public.posthogHost,
      }
    );
    try {
      const results = await DB.query.users.findMany()
      return results
    } catch (error) {
      posthog.captureException(error)
    }
  3. 3

    Build your project for production

    Required

    Build your project for production by running the following command:

    Terminal

    PostHog AI

    nuxt build

    The PostHog module will automatically generate and upload source maps to PostHog during the build process.

  4. Verify error tracking

    Recommended

    Confirm events are being sent to PostHog

    Before proceeding, let's make sure exception events are being captured and sent to PostHog. You should see events appear in the activity feed.

    Image: Activity feed with eventsImage: Activity feed with events

    Check for exceptions in PostHog

  5. 4

    Upload source maps

    Required

    Great, you're capturing exceptions! If you serve minified bundles, the next step is to upload source maps to generate accurate stack traces.

    Let's continue to the next section.

    Upload source maps

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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/error-tracking/skills/all · commit a5d30e7
Licence
MIT License (redistribution allowed)
  • LICENSE (added by AutoGineer from LICENSE)
  • ATTRIBUTION.md (written by AutoGineer)
Synced
Also distributed in
PostHog/skills

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-error-tracking.zip