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CRITICAL E005: Suspicious download URL detected in skill instructions.

• Suspicious download URL detected (high risk: 0.70). These are direct links to installer scripts (install.sh, install.ps1) hosted on a non-mainstream domain (astral.sh); while they may be the project's official installers, executing remote shell/PowerShell scripts without verifying the domain and inspecting the content is risky and can be used to distribute malware.