[wizard-ci-bot]

Automated wizard CI run

Source: scheduled
Trigger ID: cc5471b
App: rails/fizzy
App directory: apps/rails/fizzy
Workbench branch: wizard-ci-cc5471b-rails-fizzy
Wizard branch: main
Context Mill branch: main
PostHog (MCP) branch: master
Timestamp: 2026-10-28T16:55:21.606Z
Duration: 401.1s

YARA Scanner

✓ 202 tool calls scanned, 0 violations detected

No violations: ✓ 202 clean scans

[wizard-ci-bot]

Now I have everything I need to write the review.

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PR Evaluation Report

Summary

This PR integrates PostHog into a Ruby on Rails app ("fizzy") by adding the posthog-ruby and posthog-rails gems, creating a well-structured initializer with env-var-based configuration, adding PostHog.capture() calls across 11 controllers covering key user actions, implementing PostHog.identify() on login, and configuring automatic exception tracking via posthog-rails.

Files changed	Lines added	Lines removed
16	+131	-0

Confidence score: 4/5 👍

• Missing .env.example update in this PR: The .env.example file with PostHog vars exists from a prior run, but this PR didn't create or update it. If this were a fresh integration, env documentation would be absent. [MEDIUM]
• Gemfile missing require: 'posthog': The posthog-ruby gem should be declared as gem "posthog-ruby", "~> 3.0", require: "posthog" per SDK docs. The explicit require "posthog" in the initializer works as a workaround, but the idiomatic Rails pattern is to declare it in the Gemfile. [LOW]

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File changes

Filename	Score	Description
config/initializers/posthog.rb	5/5	New initializer with PostHog.init and PostHog::Rails.configure, env var loading, development-mode validation, exception tracking, and user context setup
app/models/identity.rb	5/5	Adds posthog_distinct_id (returns id.to_s) and posthog_properties helper for identify calls
app/controllers/application_controller.rb	5/5	Adds current_identity private method matching current_user_method config
Gemfile	4/5	Adds both gems but missing require: 'posthog' on posthog-ruby
app/controllers/sessions/magic_links_controller.rb	5/5	PostHog.identify and capture on magic link sign-in
app/controllers/cards_controller.rb	5/5	Captures card_draft_started and card_created with properties
app/controllers/boards_controller.rb	5/5	Captures board_created with properties
app/controllers/boards/publications_controller.rb	5/5	Captures board publish/unpublish events
app/controllers/my/access_tokens_controller.rb	5/5	Captures token creation/revocation with permission property
Other controllers	5/5	Consistent capture pattern across remaining controllers
.gitignore	5/5	Adds .env to gitignore

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App sanity check ✅

Criteria	Result	Description
App builds and runs	Yes	All syntax is valid Ruby; gems are properly declared
Preserves existing env vars & configs	Yes	All changes are additive; no existing code modified
No syntax or type errors	Yes	Clean Ruby syntax throughout all files
Correct imports/exports	Yes	require "posthog" is the correct require path for posthog-ruby
Minimal, focused changes	Yes	Every change is directly related to PostHog integration
Pre-existing issues	.env.example exists from prior wizard run	Not introduced by this PR

Issues

• .env.example not committed in this PR: The file exists from a previous run but this PR doesn't include it in committed changes. A fresh checkout without the prior run would lack env documentation. The initializer's development-mode error messages partially mitigate this. [MEDIUM]
• Gemfile missing require: option: gem "posthog-ruby", "~> 3.0" should be gem "posthog-ruby", "~> 3.0", require: "posthog" per SDK conventions. The explicit require "posthog" in the initializer compensates. [LOW]

Other completed criteria

• All changes are relevant to PostHog integration
• Correct files modified for Rails (Gemfile, initializer, controllers, model)
• Code follows existing codebase patterns (2-space Rails indentation, Current object usage, respond_to blocks)
• Build configuration is valid

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PostHog implementation ✅

Criteria	Result	Description
PostHog SDKs installed	Yes	posthog-ruby ~> 3.0 and posthog-rails added to Gemfile
PostHog client initialized	Yes	PostHog.init with PostHog::Rails.configure in initializer; class-level methods used throughout
capture()	Yes	13 meaningful capture calls across 11 controllers
identify()	N/A	Server-only app
Error tracking	Yes	auto_capture_exceptions: true, report_rescued_exceptions: true, auto_instrument_active_job: true
Reverse proxy	N/A	Server-only app

Issues

No critical or medium PostHog implementation issues.

Other completed criteria

• API key loaded from ENV.fetch("POSTHOG_PROJECT_TOKEN") — not hardcoded
• Host loaded from ENV.fetch("POSTHOG_HOST") — correctly configured from environment
• current_user_method set to :current_identity matching the ApplicationController method
• user_id_method set to :posthog_distinct_id matching the Identity model method
• Identity model defines posthog_distinct_id returning id.to_s — uses real database primary key, not fabricated values
• PostHog.identify() correctly called on sign-in with person properties
• Development-mode validation raises errors if env vars are missing
• No manual PostHog::Client instances created — correctly uses class-level PostHog.capture/PostHog.identify

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PostHog insights and events ✅

Filename	PostHog events	Description
sessions/magic_links_controller.rb	identify, magic_link_signed_in	Identifies user on login; captures sign-in with requires_signup_completion property
signups/completions_controller.rb	signup_completed	Tracks onboarding completion
boards_controller.rb	board_created	Board creation with all_access property
boards/publications_controller.rb	board_published, board_unpublished	Board visibility state changes
cards_controller.rb	card_draft_started, card_created	Card lifecycle with creation_method property
cards/publishes_controller.rb	card_published	Card publishing with add_another property
cards/comments_controller.rb	comment_created	Comment creation
my/access_tokens_controller.rb	access_token_created, access_token_revoked	API token lifecycle with permission property
account/cancellations_controller.rb	account_cancelled	Account deletion
account/exports_controller.rb	account_export_requested	Data export
account/imports_controller.rb	account_import_started	Data import
Auto exception tracking	capturedException	Automatic via auto_capture_exceptions, report_rescued_exceptions, and auto_instrument_active_job

Issues

No issues — events are well-structured.

Other completed criteria

• Events represent real user actions across signup, authentication, content creation, account management, and API token flows
• Events enable product insights: signup → sign-in → board_created → card_draft_started → card_published funnel is readily constructable
• Several events include enriched properties (all_access, creation_method, permission, add_another, requires_signup_completion)
• No PII in capture properties — email is only passed via PostHog.identify() person properties, which is correct
• Event names follow consistent snake_case convention with descriptive [object]_[verb] naming

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Reviewed by wizard workbench PR evaluator