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Marcin Brzozka
Marcin Brzozka

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How to Review AI-Generated Code Before Merging: A Practical Checklist

AI coding tools like Cursor, Claude Code, GitHub Copilot, and Codex write code fast — but they also introduce risk patterns that are easy to miss in a quick visual review. Secret literals in diffs, config changes that break production, dependency additions without lockfile updates, and authentication changes without corresponding test changes are all patterns that slip through code review when developers treat AI output as trusted.

This is a practical guide to reviewing AI-generated code before you merge, based on the real patterns we see in production diffs.

The Problem: AI Code Moves Fast, Review Moves Slow

Developers using AI coding assistants report shipping 2–5× faster — but also catching fewer bugs before merge. The speed creates a review gap: you accept AI suggestions quickly, merge without checking for risk patterns, and discover problems in production.

Common patterns that get missed:

  • Secret literals — API keys, tokens, and passwords committed in .env files or config changes
  • Config drift — docker-compose.yml, settings.json, or .env changes that alter runtime behavior
  • Missing test coverage — source files changed without corresponding test changes
  • Dependency additions — new packages in requirements.txt or package.json without security review
  • Auth/payment/security path changes — modifications to login, payment, or access control code without explicit sign-off

A Practical Review Checklist for AI-Generated Diffs

Every AI-generated change should go through at least these checks before merge:

  • Scope the diff — How many files changed? How many lines? Large diffs from AI agents often touch areas you did not intend to modify.
  • Flag risk areas — Are there changes to authentication, config, dependencies, or infrastructure files? These are high-risk and deserve manual review.
  • Check for secrets — Scan the diff for patterns like API keys, tokens, passwords, private keys, and connection strings. AI agents sometimes copy real values from context.
  • Verify test coverage — If source files changed, did the corresponding tests change too? AI agents often generate source changes without updating tests.
  • Review config changes — Config and infrastructure changes (docker-compose.yml, .env, settings.json) should be reviewed line-by-line.
  • Collect evidence — Document what you reviewed, what flags you found, and your sign-off. This is useful for audits and client deliverables.

What Real AI Code Review Looks Like

Here is an example of what a structured review output looks like when you run the AI Agent Change Risk Audit Kit against a real AI-generated diff:

$ python3 agent_change_risk_auditor.py --diff risky-change.patch --json

{
"score": 100,
"level": "high",
"flags": [
"CONFIG_CHANGE:.env",
"SENSITIVE_AREA_CHANGE:.env",
"DEPENDENCY_CHANGE:package.json",
"INFRA_CHANGE:docker-compose.yml",
"SOURCE_CHANGED_WITHOUT_TEST_CHANGE",
"POSSIBLE_SECRET_LITERAL_IN_DIFF"
],
"recommendations": [
"Add or update tests for changed source files before merge.",
"Remove secret-like literals and rotate exposed credentials if real.",
"Review dependency changes manually and run lockfile/security checks.",
"Require human review for auth/payment/security/config paths."
]
}
This is not mockup data — it is the actual output from the tool when run against a diff that modifies authentication code, adds dependencies, and includes a config change. The risk score and flags tell you exactly what to review before merge.

Secret Scanning: The Pattern You Are Most Likely to Miss

AI coding agents frequently copy real API keys, tokens, and connection strings from your codebase or documentation context. Here is what a secret scan looks like with the Secret/Config Diff Scanner:

$ python3 -m src scan --diff risky.diff --format json

{
"scanner": "secret-config-diff-scanner",
"summary": {
"total_findings": 18,
"critical": 4,
"high": 9,
"secret_findings": 14,
"config_findings": 4
},
"findings": [
{
"type": "secret",
"pattern_name": "AWS_ACCESS_KEY",
"severity": "critical",
"file": "src/config.py",
"line": 2
},
{
"type": "config",
"pattern_name": "DOCKER_COMPOSE_CHANGE",
"severity": "high",
"file": "docker-compose.yml",
"line": 15
}
]
}
Twenty patterns are checked — AWS keys, Stripe keys, GitHub tokens, database URLs, and more — all locally, without sending your code anywhere.

Launching Without a Checklist Is How Things Break

The same review discipline applies to product launches. Whether you are launching on Gumroad or WordPress, a pre-launch checklist catches the problems that cost you sales: wrong file attached, broken checkout, missing documentation, or 404 pages after deploy.

Every CodeRiskTools launch QA kit includes a local validator you run before publishing. Here is what the Gumroad launch validator output looks like:

$ python3 validate_gumroad_launch_pack.py examples/example-product/

PASS

  • manifest: PASS (product_name, version, price_usd, sha256, limitations present)
  • sha256: PASS (matches manifest)
  • zip integrity: PASS (ZIP verified, all entries readable)
  • banned files: PASS (no pycache/.pyc/.env found)
  • README.md: present
  • QUICK_START.md: present

    What You Can Do Right Now

  • Use a review checklist — Even a simple checklist forces you to look at risk areas. The Basic Kit ($5) gives you a structured checklist with AI-aware prompts.

  • Scan for secrets — Run a secret scanner on every diff before merge. The Diff Scanner ($7) catches 20+ secret patterns locally.

  • Get risk scoring — If you deliver AI code to clients, you need evidence of review. The Pro Kit ($19) scores every change and generates client-ready reports.

  • Enforce review in CI — Block risky merges automatically. The Workflow Pack ($7) includes pre-commit hooks and GitHub Actions review gates.

  • Launch with a checklist — Never ship the wrong file again. Gumroad Launch QA ($9) and WordPress Launch QA ($9) validate your product before and after publish.

Every CodeRiskTools kit runs locally, offline, with no SaaS and no API keys. One-time purchase, no subscription. Compare all products →

🎁 Free: 5-Point AI Code Review Checklist

Want a structured way to review AI-generated code before merging? Download our free 5-point checklist — covers scope, security, data, runtime, and rollback with quick tests and real examples.

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This article was originally published on CodeRiskTools.store. Check out our practical CLI tools for developers — including a free 5-point AI code review checklist and local secret/config diff scanning for AI-generated code.

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