For Bolt.new projects
Find what Bolt.new ships before your users do.
Bolt is fast. Our 8-module senior audit finds the security, architecture, and conversion gaps Bolt's preview misses — for $19.
Delivered in 2-3 minutes · No login · One-time payment · 7-day money-back
Why Bolt.new apps benefit from a senior-engineer audit
Bolt.new is a remarkable demo machine — paste a prompt, watch a working app appear. But the apps it produces inherit the same shortcuts every AI-coded project does: skipped error handling, optimistic happy paths, missing rate limits, and a tendency to mix client and server code in ways that leak secrets. None of this matters for a demo. All of it matters the moment you point real customers at the URL. Auditing once before launch is cheaper than auditing once after.
Top issues we find in Bolt.new apps
Generic-but-true patterns from our audit pipeline. The audit flags these on YOUR specific project with file-and-line citations.
API keys baked into the generated client code
Bolt frequently puts third-party API keys (OpenAI, Anthropic, Stripe, SendGrid) directly into client-side files because that's the fastest path to a working demo. In production this is a credit-draining leak.
Fix: Move every third-party API call behind a Next.js Route Handler. Read keys from process.env on the server only. Rotate any keys that ever lived client-side.
No CSRF protection on mutating endpoints
Bolt's generated POST/PUT/DELETE handlers typically accept any same-origin request without a CSRF token. A malicious site can trigger account changes if a user is logged in.
Fix: Use Next.js Server Actions (CSRF-safe by default) or add SameSite=strict cookies + an origin-check on every mutating handler.
Database queries vulnerable to N+1 explosion
Bolt likes to fetch lists then loop over them with per-item queries. Works fine with 5 rows; falls over at 500 — and a single page load can hammer the database with thousands of round-trips.
Fix: Find every loop containing an awaited DB query. Replace with a single JOIN or batch-fetch (Promise.all with limit).
Authentication state lost on page refresh
We see Bolt apps where login works once, but a hard refresh logs the user out. Usually because the session is held only in client state rather than persisted in a cookie.
Fix: Use a server-side session library (NextAuth, Lucia, Supabase Auth) with httpOnly cookies. Verify session restoration across reloads in private/incognito mode.
Forms accept payloads larger than the server can handle
Without explicit input limits, a Bolt-generated form will accept a 10MB string and try to insert it into the database, which then times out the request and locks a connection.
Fix: Add Zod schemas with explicit .max() bounds on every form input. Reject oversized payloads with a 413 before they reach the DB.
No structured logging — debugging requires guessing
When something breaks in a Bolt-generated app, the typical response is a generic 500 with no breadcrumb. You can't see which endpoint failed, which user it affected, or what the input was.
Fix: Add a structured logger (pino or console.log with consistent JSON) at every Route Handler entrypoint and error catch.
Example fix prompts you'll get
Every finding ships with a paste-ready prompt for Cursor or Claude. Here are three examples we'd typically hand back for a Bolt.new project.
Audit every file in the app/ directory for client-side API key usage. For each key found in a `"use client"` file, move the API call to a new Route Handler in app/api/, read the key from process.env, and update the client to fetch from the new endpoint.
Identify every database query that runs inside a .map() or .forEach() loop. For each one, refactor to a single JOIN query or Promise.all batch of at most 10 concurrent queries.
Add a Zod schema validator to every POST/PUT/DELETE endpoint. Use safeParse to validate the body, return 400 with the error message if validation fails, and cap every string field with .max(N) where N is the actual maximum length the UI accepts.
The 8-module audit
Plus a 90-day founder roadmap, brand positioning, copy-paste fix prompts, and a shareable Vibe Score (0–100). Bolt's preview tells you if the code runs. The audit tells you if it survives.
Bolt.new-specific questions
Audit your Bolt.new project for $19.
Two minutes from now you'll have a senior-engineer review with paste-ready fix prompts. One-time, no subscription.
Audit my Bolt.new project — $19Not from a Bolt.new project? See all the tools we audit.