About
The Defense-in-Depth Validation skill empowers Claude to move beyond single-point checks by implementing a rigorous four-layer validation strategy. By verifying data at the entry point, within business logic, through environment guards, and via debug instrumentation, this skill ensures that invalid data cannot bypass safety checks through refactoring, mocks, or alternative code paths. It is particularly effective for hardening critical systems against malformed input and preventing dangerous operations in unintended environments, ultimately creating more resilient and secure codebases.
