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integration-sveltekit

integration-sveltekit

github.com/posthogData & databases7696 installsUpdated today
Repository

About integration-sveltekit

A skill for adding PostHog analytics to SvelteKit applications. It guides implementation through a staged workflow, with framework-specific setup, user identification, and error tracking guidance.

Key features

  1. 01Four-step integration workflow
  2. 02SvelteKit setup guidance
  3. 03Environment-variable key handling
  4. 04User identification guidance
  5. 05Error tracking guidance
  6. 06Svelte component validation

Use cases

  1. 01Adding PostHog to a SvelteKit app
  2. 02Instrumenting login and signup
  3. 03Adding error tracking to critical flows

MCP support

The skill instructs users to use Svelte MCP server tools to consult documentation and validate components.

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/posthog/skills --skill integration-sveltekit

After installing, type/integration-sveltekitin Claude Code to confirm it loaded.

Bundled files

References and scripts installed along with SKILL.md.

references/
basic-integration-1.0-begin.md
basic-integration-1.1-edit.md
basic-integration-1.2-revise.md
basic-integration-1.3-conclude.md
EXAMPLE.md
identify-users.md
svelte.md

Details

From the project README

PostHog integration for SvelteKit

This skill helps you add PostHog analytics to SvelteKit applications.

Workflow

Follow these steps in order to complete the integration:

  1. basic-integration-1.0-begin.md - PostHog Setup - Begin ← Start here
  2. basic-integration-1.1-edit.md - PostHog Setup - Edit
  3. basic-integration-1.2-revise.md - PostHog Setup - Revise
  4. basic-integration-1.3-conclude.md - PostHog Setup - Conclusion

Reference files

  • references/EXAMPLE.md - SvelteKit example project code
  • references/svelte.md - Svelte - docs
  • references/identify-users.md - Identify users - docs
  • references/basic-integration-1.0-begin.md - PostHog setup - begin
  • references/basic-integration-1.1-edit.md - PostHog setup - edit
  • references/basic-integration-1.2-revise.md - PostHog setup - revise
  • references/basic-integration-1.3-conclude.md - PostHog setup - conclusion

The example project shows the target implementation pattern. Consult the documentation for API details.

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.

Framework guidelines

  • Set paths.relative to false in svelte.config.js — this is required for PostHog session replay to work correctly with SSR and is easy to miss
  • Use the Svelte MCP server tools to check Svelte documentation (list-sections, get-documentation) and validate components (svelte-autofixer) — always run svelte-autofixer on new or modified .svelte files before finishing

Identifying users

Identify users during login and signup events. Refer to the example code and documentation for the correct identify pattern for this framework. If both frontend and backend code exist, pass the client-side session and distinct ID using X-POSTHOG-DISTINCT-ID and X-POSTHOG-SESSION-ID headers to maintain correlation.

Error tracking

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

Comments

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