AI Security Best Practices for Coding Agents: What to Do Differently
AI coding agents — Lovable, Bolt, Cursor, Claude Code, GitHub Copilot, Windsurf — generate production code faster than any human can write it. The security practices that assume a human is writing and reviewing every line of code need to be updated for this reality.
Here are the eight practices that address the specific risks AI coding agents introduce, with concrete implementation steps for each.
1. Run secret scanning before every push
AI agents hardcode credentials during generation. They write the shortest path to working code, and the shortest path to calling the Stripe API is to put the Stripe key in the function. The gitleaks pre-commit hook catches this before it enters the git history. Install it once and it runs on every commit automatically.
2. Review every AI-generated API route for authentication
AI agents scaffold API endpoints quickly, often without adding authentication middleware if it was not specified in the prompt. After any AI session that creates new API routes, review each route and verify that a valid session token is required to access it. Endpoints that should be public should be explicitly labeled as such.
3. Add rate limiting explicitly to every endpoint
AI-generated apps almost never include rate limiting unless it was part of the prompt. Add it explicitly to login, signup, and any endpoint that triggers a third-party API call or expensive computation. At minimum: 5 requests per IP per minute on authentication endpoints, 60 requests per IP per minute on standard API endpoints.
4. Run dependency audit after every AI session
AI agents add npm packages or pip packages liberally. Run npm audit or pip-audit after every session that involved the AI installing new packages. Upgrade or replace any package with high or critical CVEs before shipping.
5. Test every new database query for authorization
AI agents write database queries that return results for a given ID. They do not always verify that the requesting user owns the resource identified by that ID. For every AI-generated query that returns user data, verify that the query includes a condition that restricts results to the requesting user. An unauthenticated call with a different user’s ID should return empty, not that user’s data.
6. Check HTTP security headers after deployment
AI builders do not configure security headers. Check after every deployment with the free LRC headers scanner. The required headers: Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, and Permissions-Policy. Missing headers can be added in one configuration block on your hosting provider.
7. Add error tracking before the first real user
AI-generated apps ship without error tracking by default. Install Sentry (or equivalent) and verify it is capturing errors before you share the app with real users. The install is typically five minutes. Without it, production failures are invisible until customers complain.
8. Run a URL-based scan after every significant deployment
The AI agent sees your code. A URL-based scan sees what your deployed app exposes. The two surfaces are different. Run the free LRC scan after any significant deployment to catch what the code-level tools missed: open endpoints, missing headers, rate limiting failures, absent monitoring. The full audit ($499) covers all four dimensions with specific findings and time estimates for each fix.
See your app’s readiness score — free
Platform-aware scan: security, reliability, performance, monitoring. 30 seconds, no code access needed.
Run the free scanFAQ
What is the most important security practice for AI-built apps?
Secret scanning before every push (gitleaks) and reviewing API routes for authentication are the two highest-impact practices. Together they address the two gaps most likely to cause an immediate data breach: exposed credentials and unauthenticated API access.
Do AI coding agents generate secure code?
AI coding agents generate code that works. They optimize for speed and correctness, not security configuration. Rate limiting, authentication middleware, input validation, and security headers are consistently absent in AI-generated code unless explicitly prompted. The security practices in this guide are the systematic way to add what the AI left out.
How do I make my AI-generated API endpoints secure?
Three steps: (1) add authentication middleware to every route that should require login, (2) add rate limiting to every route, (3) add input validation to every route that accepts user-supplied data. After making these changes, run a URL-based scan to verify the live deploy reflects them.
Is it safe to use AI coding agents with sensitive business logic?
Yes, with appropriate controls. The risks are in what AI agents generate (missing security configuration, hardcoded credentials) rather than in the agent having access to your code. Implement the eight practices above and you address those risks regardless of which AI tool you use.
Research sources
- OWASP Foundation — OWASP Top 10
- MITRE Corporation — CWE Top 25
- NIST — National Vulnerability Database
- Jai Mittal, Launch Ready Code — 700+ AI-built app security audits, 2025–2026. Average score: 44/100.