doc-compression

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

• Potentially malicious external URL detected (high risk: 1.00). The skill explicitly instructs installing a remote PDF skill at https://skills.sh/anthropics/skills/pdf using a runtime install command (npx skills add https://github.com/anthropics/skills --skill pdf), which would fetch and execute remote code and add external skill logic that can control agent instructions at runtime.