Ruby on Rails

AI code reviewfor Rails apps

Strong params gaps, N+1 queries, job idempotency, and authorization before_action hooks are familiar Rails review themes. CodeCritic reads Ruby diffs with conventions from controllers, models, jobs, and specs.

ActiveRecordSidekiq jobsRSpecHotwireSequel-friendly
How it works

Rails-specific review angles

Monoliths and API-only apps share patterns reviewers watch on every PR.

  • Authorization checked before mutating actions, not only in views.
  • Database transactions around multi-step writes and external calls.
  • Background jobs safe to retry without double-charging or duplicate emails.
  • Migrations reversible or explicitly documented when not.

Overview

Works with your existing toolchain

RuboCop and Brakeman stay in CI. CodeCritic explains why a change is risky in prose your team can discuss on the PR.

Whether you use RSpec minitest, or a Grape API layer, reviews anchor to line numbers in the unified diff you submit.

Sample output

Example findings

Blocking

SQL fragment from params

Dynamic column names from params can enable SQL injection even inside a where hash.

Before

User.where(params[:filter_column] => params[:value])

Suggested direction

ALLOWED = %w[email status].freeze
column = ALLOWED.include?(params[:column]) ? params[:column] : 'email'
User.where(column => params[:value])

Illustrative patterns from real review categories. Your output depends on diff size, language, and context.

FAQ

Common questions

Yes when those files appear in the diff. Very large templates may benefit from splitting reviews by logical change.

Related pages

React reviewSecurity reviewREST API

Ship the next Rails PR with a Ruby-native first pass

Run a review on your latest controller or job change and see how findings map to your team checklist.

Integrations