What problem does it solve? After a security fix is implemented, teams need an independent check that the patch actually resolves the findings without introducing regressions or leaking secrets before release. This Skill performs that post-implementation verification and produces a clear ship/no-ship verdict. ## Core Features & Use Cases - Independent diff review: Compares the actual diff against the declared scope and runs validation commands including npm audit and secret scanning. - OWASP-mapped checklist: Reviews SQL injection, XSS sinks, CSRF guards, redirect allowlisting, weak randomness, and security headers, mapping findings to OWASP 2021 categories. - Structured verdict output: Produces a findings closure matrix, runtime proof matrix status, open blockers, and a ship verdict of safe incremental ship or needs changes. - Use Case: After a coder fixes an XSS vulnerability and a CSRF gap, run this Skill to confirm the fixes, scan the staged diff for secrets, and receive a release-readiness verdict with residual risk documented. ## Quick Start Ask the agent to run the security verifier on the latest fixes and produce a ship verdict with the findings closure matrix.