build-mcp-use-client

No clear evidence of intentional malware (e.g., backdoor/exfiltration payloads) within the fragment itself. However, the examples contain multiple security-relevant dangerous patterns: a custom code-execution example using new Function(...) (arbitrary code execution if any part of the code string is attacker-influenced), direct browser opening of server-provided URLs, npx-based process/package launching without pinning guidance, and broad console logging of server-provided content that could leak sensitive data. Treat these recipes as high-risk templates and apply strict input validation/allowlisting, dependency pinning/auditing, sandboxing for any code execution, and log redaction.