Adding Supabase Auth to your Fine.dev app? Let us review it.
Expert review for Supabase Auth integrations built with Fine.dev. We fix Fine.dev-generated Supabase Auth code for security, error handling & production readiness. From $19.
Common Fine.dev issues affecting integrations
Spec interpretation may differ significantly from intent
Fine.dev builds exactly what the specification says, not what you meant. Ambiguous specs lead to technically correct implementations that miss the actual product requirement.
Cross-file changes may miss security implications
When Fine.dev generates features spanning multiple files, security-sensitive changes — new endpoints, auth checks, data access patterns — are spread across the PR without a consolidated security review surface.
Generated tests may not cover real-world edge cases
Fine.dev writes tests for the happy path and obvious failure cases from the spec. Edge cases not explicitly mentioned — concurrent requests, null inputs, rate limits — are frequently untested.
Supabase Auth issues we find in Fine.dev apps
Row Level Security policies not created or too permissive
AI-generated code creates tables without RLS enabled or adds overly permissive policies like 'true' for all operations, defeating the purpose of Supabase Auth.
Using anon key for server-side operations
Generated code uses the anon key in server-side API routes instead of the service role key, causing operations to fail or bypass RLS unintentionally.
Auth state not synced between client and server in Next.js
AI tools use createBrowserClient() everywhere instead of properly configuring createServerClient() with cookie-based sessions for Server Components and Route Handlers.
Start with a self-serve audit
Get a professional review of your Supabase Auth integration at a fixed price.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code 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.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Can you review my Fine.dev-built Supabase Auth integration?
Yes. We regularly audit Supabase Auth integrations in Fine.dev-built apps. We check for proper error handling, security best practices, and production-ready configuration.
What Supabase Auth issues does Fine.dev typically create?
Common issues in Fine.dev-generated Supabase Auth code include: row level security policies not created or too permissive, using anon key for server-side operations, auth state not synced between client and server in next.js. We fix all of these in our code review.
How much does it cost to fix my Supabase Auth integration?
Start with our code audit ($19) to get a complete list of Supabase Auth issues. Most integration fixes are included in our Fix & Ship plan ($199). For complex integrations, we provide a custom quote after the audit.
What Supabase Auth best practices does Fine.dev typically miss?
AI tools often skip webhook signature verification, proper error handling for API failures, retry logic with exponential backoff, and secure token storage for Supabase Auth. Our review checks all of these and provides specific fixes.
Related resources
More Fine.dev Integrations
Need help with Supabase Auth in your Fine.dev app?
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