Web Application Scanning skill for Tenable navi CLI. Use for ANY request involving Tenable WAS (DAST / Dynamic Application Security Testing): downloading WAS data, listing WAS configs/scans/findings, launching WAS scans, WAS statistics, WAS exports, and WAS-driven tagging. Trigger on: "WAS", "web application scan", "DAST", "web app findings", "web app vulnerabilities", "OWASP findings", "scan a web app", "which web apps have criticals", "show WAS configs". Requires Tenable WAS license (separate from TVM). WAS data goes into navi.db apps and findings tables via navi_config_update(kind="was") under navi-mcp, or `navi config update was` standalone.