oh-my-codex: Skill for Codex

Security Review Skill

Focused security audit for code and architecture.

When to Use

• Before deploying to production
• After adding authentication/authorization
• When handling sensitive data
• Regular security audits
• Compliance requirements

OWASP Top 10 Checklist

1. Broken Access Control

□ Authentication on all protected routes
□ Authorization checks for resources
□ No direct object references exposed
□ CORS properly configured
□ JWT validation complete

2. Cryptographic Failures

□ Sensitive data encrypted at rest
□ TLS for data in transit
□ Strong hashing for passwords (bcrypt, argon2)
□ No hardcoded secrets
□ Proper key management

3. Injection

□ Parameterized queries (no string concat)
□ Input validation
□ Output encoding
□ ORM used correctly
□ Command injection prevention

4. Insecure Design

□ Threat modeling done
□ Security requirements defined
□ Secure defaults
□ Defense in depth
□ Least privilege principle

5. Security Misconfiguration

□ Default credentials changed
□ Unnecessary features disabled
□ Error messages don't leak info
□ Security headers set
□ Dependencies up to date

6. Vulnerable Components

□ Dependencies scanned (npm audit, etc.)
□ Known vulnerabilities addressed
□ Components from trusted sources
□ Unused dependencies removed

7. Auth Failures

□ Strong password requirements
□ Rate limiting on auth endpoints
□ Session management secure
□ Multi-factor available
□ Secure password reset

8. Data Integrity Failures

□ Integrity verification for data
□ Signed updates/packages
□ CI/CD pipeline secured
□ Serialization safe

9. Logging Failures

□ Security events logged
□ Logs don't contain secrets
□ Log injection prevented
□ Monitoring/alerting set up

10. SSRF

□ URL validation
□ Allowlist for external calls
□ Network segmentation
□ Metadata endpoint blocked

Quick Checks

Secrets

# Look for hardcoded secrets
grep -r "password\|secret\|api_key\|token" --include="*.ts" --include="*.js"