[CI] (bd5a2b4) flask/flask3-social-media

[wizard-ci-bot]

Automated wizard CI run

Source: manual
Trigger ID: bd5a2b4
App: flask/flask3-social-media
App directory: apps/flask/flask3-social-media
Workbench branch: wizard-ci-bd5a2b4-flask-flask3-social-media
Wizard branch: main
Examples branch: main
PostHog (MCP) branch: master
Timestamp: 2026-01-21T21:07:47.532Z
Duration: 372.9s

[wizard-ci-bot]

Now I have all the information needed to provide the evaluation. Let me compile the review:

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PR Evaluation Report

Summary

This PR integrates PostHog analytics into a Flask 3 social media microblog application. It adds comprehensive event tracking across authentication flows (login, logout, signup, password reset), content creation (posts), social interactions (follow/unfollow, messaging), search, and API endpoints. The integration uses the modern Python SDK v7 context-based API correctly.

Files changed	Lines added	Lines removed
9	+212	-2

Confidence score: 4/5 👍

• Hardcoded API key in .env file: The .env file contains a real PostHog API key (phc_sBGFIjin7AfcLwLJ4yc79wY84KHkvrTw5SnUeKD0SWE). This should not be committed to version control. [CRITICAL]
• No reverse proxy configuration: Events are sent directly to PostHog's servers, which can be blocked by ad blockers reducing data accuracy. [MEDIUM]
• Email tracked as user property: The tag('email', user.email) calls store PII as user properties. While tag() is for properties rather than events, email addresses may raise privacy concerns depending on jurisdiction. [LOW]

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File changes

Filename	Score	Description
app/__init__.py	5/5	Correctly imports posthog and initializes it in create_app() with API key from config and proper host configuration
app/api/tokens.py	5/5	Adds tracking for API token generation and revocation with user identification
app/api/users.py	5/5	Tracks API user creation with user identification and properties
app/auth/routes.py	5/5	Comprehensive auth tracking: login, logout, signup, password reset request/completion with user identification
app/errors/handlers.py	5/5	Proper exception capture in 500 handler with try/except to prevent PostHog failures from breaking error handling
app/main/routes.py	5/5	Tracks key user actions: post creation, profile update, follow/unfollow, search, messaging, export
config.py	5/5	Adds POSTHOG_API_KEY and POSTHOG_HOST from environment variables with sensible defaults
requirements.txt	5/5	Adds posthog dependency
posthog-setup-report.md	4/5	Good documentation but references .env being "created with PostHog credentials" which shouldn't be committed

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App sanity check: 5/5 ✅

Criteria	Result	Description
App builds and runs	Yes	App creates successfully with create_app(), no import errors
Preserves existing env vars & configs	Yes	Only adds POSTHOG_API_KEY and POSTHOG_HOST, does not modify existing config
No syntax or type errors	Yes	All Python files pass py_compile verification
Correct imports/exports	Yes	All posthog imports (capture, identify_context, new_context, tag) are valid for SDK v7
Minimal, focused changes	Yes	Changes are strictly additive PostHog integration, no unrelated modifications

Issues

None

Other completed criteria

• Existing app logic unchanged - only PostHog calls added after existing functionality
• Error handling preserved with PostHog wrapped in try/except in error handler
• Consistent code style with existing codebase patterns
• Environment variable documentation in config.py

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PostHog implementation: 4/5 ✅

Criteria	Result	Description
PostHog SDKs installed	Yes	posthog v7.6.0 in requirements.txt
PostHog client initialized	Yes	Global initialization in create_app() with posthog.api_key and posthog.host
capture()	Yes	Used correctly with new_context() blocks throughout the app (15 distinct events)
identify()	Yes	Uses identify_context() within new_context() blocks with user ID as string
Error tracking	Yes	posthog.capture_exception() in 500 error handler with user context when authenticated
Reverse proxy	No	No reverse proxy configured - events sent directly to us.i.posthog.com

Issues

• No reverse proxy: Events sent directly to PostHog can be blocked by ad blockers, reducing analytics accuracy. Consider configuring a reverse proxy for production use. [MEDIUM]
• Hardcoded API key committed: The .env file contains a real API key and is included in the diff. This is a security risk. [CRITICAL]

Other completed criteria

• Uses Python SDK v7 context-based API correctly (new_context(), identify_context(), capture(), tag())
• API key loaded from environment variable, not hardcoded in source code
• PostHog host configurable via environment variable with sensible default
• Debug mode tied to Flask's debug setting
• Proper user identification using string conversion of user ID
• Event properties included where relevant (post_id, language, body_length, etc.)

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PostHog insights and events: 5/5 ✅

Filename	PostHog events	Description
app/auth/routes.py	user_signed_up, user_logged_in, user_logged_out, password_reset_requested, password_reset_completed	Full authentication funnel tracking for conversion analysis
app/main/routes.py	post_created, profile_updated, user_followed, user_unfollowed, search_performed, message_sent, posts_exported	Core engagement metrics with rich properties (post_id, language, body_length, query, results_count)
app/api/users.py	api_user_created	API signup tracking with signup_method property distinguishing from form signup
app/api/tokens.py	api_token_generated, api_token_revoked	API authentication lifecycle tracking
app/errors/handlers.py	capturedException	500 error tracking with user context for debugging

Issues

None

Other completed criteria

• Events represent real user actions (signup, login, post, follow, message, search)
• Events enable funnel analysis (signup → first post, signup → first follow)
• Events enable engagement analysis (DAU, post frequency, search usage)
• Properties enrich events for deeper analysis (language detection, content length, search result counts)
• Distinct events for form vs API signup enables channel comparison
• User identification enables cohort and user journey analysis
• Error tracking tied to users enables debugging user-specific issues

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Reviewed by wizard workbench PR evaluator