What the reviewer found
Academic full-text downloader routing through lawful OA/publisher APIs and user's own institutional/browser session; explicitly forbids exporting cookies or collecting passwords and stores API keys locally at 0600 -- legitimate but dual-use (paywall/institutional-access bypass via CNKI/Web Access), low risk.
What was read
The file as it ships in Yuan1z0825/nature-skills:
skills/nature-downloader/SKILL.md
What the static scan said
The 26-rule scan found nothing in this file; the review read it anyway.
How this review was made
Sonnet 5 read the files above on 6 September 2026 and answered three questions: is it dangerous to whoever installs it, is each scanner finding real, and what should the installer know. The verdict is bound to the file's hash; when the file changes, it is scanned afresh and reviewed again. A script that changes while the definition does not is not re-reviewed — that is a known gap. How the scan and the review work.