Angular 18 to Angular 19 Upgrade

MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).

• Potentially malicious external URL detected (high risk: 0.80). The skill includes commands that fetch and execute remote npm packages at runtime (e.g., "npx @angular/cli@19 update @angular/core@19 @angular/cli@19", which will retrieve and run code from the npm registry such as https://registry.npmjs.org/@angular/cli), so it relies on external code fetched-and-executed during the upgrade process.