Expert Convex Code Review for AI-Built Apps
Convex is a real-time backend platform that replaces traditional databases and APIs with reactive queries and mutations. AI tools generate Convex code quickly, but access control, query efficiency, and schema design are often overlooked.
Common Convex issues we find
Real problems from Convex codebases we've reviewed.
Missing access control on mutations
Convex mutations without identity checks, allowing any client to create, update, or delete data without authentication.
Overly broad queries
Queries that fetch entire tables without filters, sending massive amounts of data over real-time subscriptions and consuming read bandwidth.
No schema validation
Missing schema.ts definitions, allowing any shape of data to be inserted and causing type mismatches at runtime.
Inefficient reactive queries
Queries that re-execute on unrelated data changes because they scan too broadly, causing unnecessary re-renders in the frontend.
Missing error handling in actions
Convex actions calling external APIs without try/catch, causing unhandled errors that are hard to debug in the serverless environment.
Convex production checklist
Key checks before deploying your Convex app.
All mutations verify user identity via ctx.auth
Queries filtered to return only data the user should access
Schema defined in schema.ts with validators on all fields
Indexes defined for frequently filtered query patterns
Actions include error handling for external API calls
Environment variables configured in Convex dashboard (not in code)
Pagination implemented for large result sets
Not sure if your app passes? Our code audit ($19) checks all of these and more.
Our Convex services
Security Review
Deep security analysis of your application — from API endpoints to database access.
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.
Add Features
New functionality, integrations, and capabilities that your AI tool couldn't build or that you need built properly.
AI tools that generate Convex code
Start with a self-serve audit
Get a professional review of your Convex 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 Convex secure by default?
No. Convex functions are callable from the client by default. You must explicitly check ctx.auth.getUserIdentity() in every mutation and query that should be protected. We audit every function for proper access control.
Why is my Convex app using so many function calls?
Broad reactive queries re-execute whenever any row in the queried table changes. We optimize your queries with proper filters and indexes to reduce unnecessary executions and bandwidth.
Can you add authentication to my Convex app?
Yes. We integrate Clerk, Auth0, or Convex's built-in auth, add identity checks to all mutations and queries, and ensure proper access control throughout your backend.
Related resources
Need help with your Convex project?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.