| name | check-before-install |
|---|---|
| description | Check an npm or PyPI package BEFORE installing it (exists, real usage, age, install scripts, known advisories and malware). Use whenever you are about to run npm/pnpm/yarn/bun install, pip/uv/poetry add, or add a new dependency or version to a manifest. Uses looot if it is available, public registry APIs if not. |
npm audit, osv-scanner and friends look at packages that are already in your lockfile.
Install scripts run before that. This skill checks a package before it is installed.