Defense-in-Depth Validation

The Defense-in-Depth skill provides a robust framework for Claude to handle invalid data failures by applying validation at every architectural layer. By moving beyond single-point checks, it guides the implementation of entry point validation, business logic verification, environment-specific guards, and debug instrumentation. This approach ensures that even if one layer is bypassed via mocks or refactoring, subsequent layers catch the error, resulting in highly resilient and self-documenting codebases where critical bugs become impossible to trigger.

Key Features

Use Cases