Prelaunch Security Review for AI-Built Apps
Get an evidence-backed security review of your AI-built app, with prioritized fixes and tests for launch blockers.
Before & after
Same prompt, same agent — the only difference is the skill.
Reviewing a quickly-built app for security is a good idea. Here are common issues to check: - **Exposed secrets** — API keys or credentials committed to the repo - **Input validation** — unvalidated user input leading to injection - **Authentication** — weak or missing auth on protected routes - **Authorization** — users accessing data they shouldn't - **Dependencies** — known vulnerabilities in packages I'd start by scanning for hardcoded secrets and checking that user input is validated everywhere it's accepted. If you share the code, I can point out specific issues. Fast-built apps often skip security in favor of shipping speed. What does the app do?
Security pass tuned for vibe-coded apps specifically — the holes are
predictable because the build was fast, so it hunts the exact shortcuts
AI-assisted speed-building tends to leave.
THE VIBE-CODE FAILURE MODES — checked first, because they're always here
▸ EXPOSED SECRETS
Scanned for API keys, tokens, connection strings in source AND in
the client bundle. The classic: a key in a .env that got hardcoded
into a frontend fetch during a "just make it work" moment. Anything
shipped to the browser is public.
▸ MISSING INPUT VALIDATION
Every endpoint that takes user input, checked for validation. Fast
builds trust the frontend to validate — but the API is the boundary,
and skipping server-side validation is the #1 injection vector.
▸ AUTH GAPS
Protected routes that aren't actually protected. The pattern: auth
on the UI (button hidden) but not on the API (endpoint open). Hiding
a button isn't security; the endpoint has to reject the request.
WHY THESE THREE
They're not a generic checklist — they're what the speed of AI-assisted
building produces. When you're moving fast, you validate on the client,
you hardcode the key to unblock yourself, and you gate the UI instead of
the route. This pass assumes those exact shortcuts and looks for them.
WHAT A REPORT LOOKS LIKE
CRITICAL Stripe secret key in src/checkout.js, shipped to browser
CRITICAL /api/admin/* has no auth check (UI-gated only)
HIGH POST /api/orders accepts unvalidated body → injection risk
MEDIUM No rate limiting on /api/login → brute-force open
Each with the file, the line, and the fix.
THE SHIP DECISION
Criticals block. The exposed-key + open-admin-route combination is the
one that turns a fast launch into an incident. Fix those two before
anything goes live.
Point me at the repo and I'll run the pass against your actual code.About this skill
Your app works in the demo, but can one customer read another customer's records? Did an AI-generated component accidentally ship a privileged key? This review traces those risks through your actual code and configuration, then gives you the fixes and checks that matter before launch.
What it does
- Maps public entry points, authentication checks, privileged services, and sensitive data flows.
- Finds exposed credentials while distinguishing private secrets from intentionally public identifiers.
- Checks resource ownership, tenant isolation, database access policies, and administrative actions.
- Traces untrusted input to database queries, HTML, file access, outbound requests, and other dangerous operations.
- Reviews launch configuration, uploads, webhooks, payment decisions, and abuse controls where relevant.
- Produces evidence-backed findings with concrete fixes, verification steps, and explicit coverage gaps.
What you get
A prioritized launch review with affected locations, realistic attack paths, targeted remediation, and regression checks. If you request implementation, it also makes scoped fixes and reports exactly which checks passed or remain untested.
Best for
Solo builders, small teams, and technical founders preparing to launch an app built quickly with AI assistance, especially apps with accounts, customer data, payments, or managed backend services.
SKILL.md preview
---
name: prelaunch-security-review-for-ai-built-apps
description: Reviews rapidly built apps before launch by tracing public entry points through authentication, resource authorization, privileged services, and sensitive sinks. Produces evidence-backed findings, scoped fixes, and regression checks. Use when the user says "check my app before launch", "audit this vibe-coded project", "did I expose any API keys?", "can users access each other's data?", "my protected routes still return other users' records", "is this safe to deploy?", or "fix the security holes in this app".
---
# Prelaunch Security Review for AI-Built Apps
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