Security Fundamentals Review
"Security is not a feature. It's a foundation. Build on sand, and the house falls."
When to Apply
Activate this skill when reviewing:
- Authentication/login flows
- Authorization checks
- User input handling
- Database queries
- File uploads
- API endpoints
- Data exposure in responses
Review Checklist
Input Validation (NEVER Trust the Client)
- All inputs validated: Is every user input checked before use?
- **Server-side validati
[Description truncada. Veja o README completo no GitHub.]