Defense in Depth: Multi-Layer Validation and Security

Overview

This skill implements comprehensive defense-in-depth strategies for robust applications. It provides multiple layers of validation, security checks, and error handling to ensure system resilience against various failure modes and attack vectors.

Progressive Disclosure: This file contains core concepts and quick reference patterns. For complete implementations, see reference/ directory.

When to Use This Skill

Use this skill when implementing:

• Multi-layer input validation
• Comprehensive error handling strategies
• Security hardening with multiple checkpoints
• Data integrity validation across system layers
• Fault-tolerant system architectures
• API security with multiple validation stages
• Database security and data protection