What the reviewer found
Chinese-language Linux command reference skill; the flagged HTML-comment-style text is just its own output-formatting template, not hidden directives. `usermod -aG sudo` and `wget|bash` appear only in reference tables the skill explicitly labels dangerous and warns to avoid or review first.
What was read
The file as it ships in kevinaimonster/skill-hub:
skills/linux-helper/SKILL.md
What the static scan said
The scan flagged 5things. The reviewer kept 0 and dismissed 5 as false.
P2Hidden instructions — false positivePE2Asks for root — false positiveSC2Downloads and executes remote code — false positiveRMRecursive force delete — false positiveNETMakes network calls — false positive
How this review was made
Sonnet 5 read the files above on 7 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.