Ruby on Rails code review, security audit, and performance services
Ruby on Rails remains one of the most productive web frameworks, and AI tools like Cursor, Claude Code, and Aider can generate Rails applications. Rails' convention-over-configuration approach means AI-generated code often works quickly — but vibe coded Rails apps frequently have mass assignment vulnerabilities, missing authorization, and deployment gaps.
Common Ruby on Rails issues we find
Real problems from Ruby on Rails codebases we've reviewed.
Mass assignment vulnerabilities
AI-generated Rails controllers that use permit! or don't properly whitelist params, allowing attackers to modify any database column including admin flags and passwords.
Missing authorization checks
Controllers that authenticate users but don't check authorization — a logged-in user can access or modify any other user's data by changing the ID in the URL.
N+1 query problems
ActiveRecord code that loads associated records in loops without includes, eager_load, or preload — causing hundreds of database queries on pages with lists.
Unsafe use of raw SQL
AI tools sometimes generate raw SQL with string interpolation instead of using ActiveRecord's parameterized query methods, enabling SQL injection attacks.
Missing CSRF protection on API endpoints
protect_from_forgery skipped for API controllers without implementing an alternative token-based authentication strategy.
Asset pipeline misconfiguration
JavaScript and CSS assets not properly compiled, fingerprinted, or cached for production — causing either missing assets or stale cached versions.
Background job failures without retry logic
Sidekiq or ActiveJob tasks that fail silently without retry mechanisms, dead letter queues, or error notifications — orders aren't processed, emails aren't sent.
Database migrations with downtime risk
Migrations that lock tables, remove columns still referenced by code, or add indexes on large tables — all causing downtime during deployment.
Ruby on Rails production checklist
Key checks before deploying your Ruby on Rails app.
Strong params properly configured on all controllers
Authorization checks (Pundit, CanCanCan) on all actions
Eager loading for associated records (no N+1 queries)
No raw SQL with string interpolation
CSRF protection enabled or replaced with token auth
Asset precompilation verified for production
Background jobs have retry and error handling
Database migrations tested for zero-downtime compatibility
Credentials managed with Rails credentials or environment variables
Brakeman security scanner passing with no critical warnings
Not sure if your app passes? Our code audit ($19) checks all of these and more.
Our Ruby on Rails services
Security Review
Deep security analysis of your application — from API endpoints to database access.
Deploy & Ship
From local development to production deployment.
Refactor Code
Clean up messy, duplicated, and hard-to-maintain code without breaking what already works.
Performance
Identify and fix performance bottlenecks — slow page loads, laggy interactions, and expensive operations.
AI tools that generate Ruby on Rails code
Start with a self-serve audit
Get a professional review of your Ruby on Rails project at a fixed price.
Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 checks
- SSL/TLS analysis
- Security headers
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerabilities
- Code quality review
- Dependency audit
- AI pattern analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Get a clear plan
We respond in 24 hours with scope, timeline, and cost.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Is my AI-generated Rails app secure?
Rails has excellent security defaults, but AI tools often bypass them — skipping strong params, omitting authorization, and generating raw SQL. We run a full security audit including Brakeman analysis and manual code review.
Can you optimize my Rails app's performance?
Yes. We fix N+1 queries, add database indexes, implement Russian doll caching, optimize ActiveRecord queries, and configure background job processing — often improving page load times by 3-5x.
Is Ruby on Rails still a good choice in 2025?
Yes. Rails is mature, productive, and powers major platforms like Shopify, GitHub, and Basecamp. It's an excellent choice for web applications, especially when rapid development is important.
Related resources
Need help with your Ruby on Rails project?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.