概要
The Defense-in-Depth skill empowers Claude to adopt a robust, multi-layered strategy for data validation, moving beyond single-point checks to make bugs structurally impossible. By enforcing validation at four distinct layers—Entry Point, Business Logic, Environment Guards, and Debug Instrumentation—this skill ensures that invalid data is caught immediately and cannot bypass critical safeguards through refactoring or mocks. It is especially useful for developers looking to harden complex data flows, prevent accidental destructive actions in specific environments, and improve the overall forensic capability of their codebase.
