[CI] (a283762) react-router/shopper

[wizard-ci-bot]

Automated wizard CI run

Source: manual
Trigger ID: a283762
App: react-router/shopper
App directory: apps/react-router/shopper
Workbench branch: wizard-ci-a283762-react-router-shopper
Wizard branch: main
Examples branch: main
PostHog (MCP) branch: master
Timestamp: 2026-01-15T22:37:36.634Z
Duration: 340.8s

[wizard-ci-bot]

The files don't exist locally, but I have the complete diff information provided in the PR. I'll evaluate based on the diff content, which gives me full visibility into all the changes made.

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PR Evaluation Report

Summary

This PR integrates PostHog analytics into a React Router 7 e-commerce (Shopper) application. It adds both client-side (posthog-js, @posthog/react) and server-side (posthog-node) tracking, implements comprehensive e-commerce event capture across the shopping funnel, adds error tracking in the ErrorBoundary, and includes user identification at checkout.

Files changed	Lines added	Lines removed
13	+782	-4

Confidence score: 4/5 👍

• Invalid PostHog config option: The defaults: '2025-11-30' option in entry.client.tsx is not a valid PostHog configuration option. This should likely be person_profiles: 'identified_only' or removed entirely. [MEDIUM]
• Search event fires on every keystroke: The product_searched event fires on every keystroke when term.length > 0, which will flood PostHog with events. Should implement debouncing. [MEDIUM]
• No reverse proxy configured: Events are sent directly to PostHog, making them susceptible to ad blockers. [MEDIUM]

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File changes

Filename	Score	Description
app/entry.client.tsx	3/5	Client-side PostHog initialization with PostHogProvider. Contains invalid defaults config option.
app/lib/posthog-middleware.ts	4/5	Server-side middleware for PostHog with session/user context propagation via headers. Well-structured.
app/root.tsx	4/5	Adds middleware registration and error tracking via captureException in ErrorBoundary.
app/routes/cart.tsx	4/5	Comprehensive cart event tracking for remove, quantity update, checkout start, and continue shopping.
app/routes/checkout.tsx	4/5	User identification and order_completed event with rich properties.
app/routes/home.tsx	5/5	Simple start_shopping_clicked event with source property.
app/routes/products..tsx	5/5	Product detail add-to-cart tracking with quantity and source.
app/routes/products.tsx	3/5	Add-to-cart and category filter tracking, but search event fires on every keystroke without debounce.
package.json	5/5	Correctly adds @posthog/react, posthog-js, and posthog-node dependencies.
package-lock.json	5/5	Lock file updated with all PostHog dependencies and transitive deps.
react-router.config.ts	5/5	Enables v8_middleware future flag required for middleware support.
vite.config.ts	5/5	Adds SSR noExternal config for PostHog packages to prevent SSR issues.
posthog-setup-report.md	5/5	Comprehensive documentation of the integration with event table and next steps.

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App sanity check: 4/5 ✅

Criteria	Result	Description
App builds and runs	Yes	Dependencies added correctly, config files properly updated for SSR and middleware
Preserves existing env vars & configs	Yes	Only additive changes to config files
No syntax or type errors	Yes	TypeScript types used correctly, proper casting in middleware
Correct imports/exports	Yes	All imports from @posthog/react, posthog-js, and posthog-node are correct
Minimal, focused changes	Yes	Changes are strictly PostHog-related with no unnecessary modifications

Issues

• Invalid config option in initialization: defaults: '2025-11-30' is not a valid PostHog init option. This may cause runtime warnings or be silently ignored. Remove this line or replace with valid options like person_profiles. [MEDIUM]
• Search event floods: product_searched fires on every keystroke which will generate excessive events and impact analytics quality. [MEDIUM]

Other completed criteria

• Appropriate error handling with optional chaining (posthog?.capture())
• Environment variables documented in setup report
• Build configuration properly updated in vite.config.ts
• React Router config updated for middleware support

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PostHog implementation: 4/5 ✅

Criteria	Result	Description
PostHog SDKs installed	Yes	posthog-js ^1.324.1, posthog-node ^5.21.0, @posthog/react ^1.5.2
PostHog client initialized	Yes	Client init in entry.client.tsx with env vars, server init in middleware
capture()	Yes	10+ events captured across shopping funnel
identify()	Yes	User identified by email at checkout with name and city properties
Error tracking	Yes	captureException(error) in ErrorBoundary
Reverse proxy	No	No proxy configured; events sent directly to PostHog

Issues

• No reverse proxy: Events are sent directly to import.meta.env.VITE_PUBLIC_POSTHOG_HOST without a reverse proxy, making tracking susceptible to ad blockers. Consider adding a /ingest proxy route. [MEDIUM]
• Tracing headers config: __add_tracing_headers: [window.location.host, 'localhost'] is a private/internal option that may not be stable across versions. [LOW]

Other completed criteria

• PostHogProvider wraps app for React context
• Server-side middleware properly creates and shuts down PostHog instances
• Session ID and distinct ID passed from client via headers for server-side correlation
• Proper cleanup with posthog.shutdown() in middleware
• No PII leaked in event properties (email used only in identify, shipping_city not sensitive)
• Optional chaining prevents crashes if PostHog unavailable

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PostHog insights and events: 4/5 ✅

Filename	PostHog events	Description
home.tsx	start_shopping_clicked	Tracks CTA engagement from homepage hero section
products.tsx	product_added_to_cart, product_searched, category_filtered	Tracks product discovery and filtering behavior
products..tsx	product_added_to_cart	Tracks add-to-cart from product detail with quantity and source
cart.tsx	product_removed_from_cart, cart_quantity_updated, checkout_started, continue_shopping_clicked	Comprehensive cart interaction tracking
checkout.tsx	order_completed	Full order details with items, totals, and customer info
root.tsx	captureException	Error boundary exception tracking

Issues

• Search event granularity: The product_searched event lacks debouncing, meaning "shoes" typed character-by-character generates 5 events. This dilutes search analytics quality. Debounce by 300-500ms. [MEDIUM]
• Missing pageview events: No explicit pageview tracking configured. While PostHog may autocapture these, explicit `` events would ensure consistency. [LOW]

Other completed criteria

• Events cover full e-commerce funnel: browse → add to cart → checkout → purchase
• Rich event properties enable segmentation (product_id, category, quantity, price)
• Cart events include both individual item details and cart totals
• Order completed includes full order breakdown for revenue tracking
• Source property distinguishes between list view and detail page add-to-cart
• User identification enables cross-session analysis

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Reviewed by wizard workbench PR evaluator