The Agent Skills Directory

[COMMAND_EXECUTION]: The skill manages a local Node.js server through shell scripts (start-server.sh, stop-server.sh). This server is used to display HTML-based mockups to the user during the design process.
[EXTERNAL_DOWNLOADS]: The skill is self-contained and does not download external scripts or packages. The Node.js server implementation relies entirely on built-in modules like http, crypto, and fs.
[DATA_EXFILTRATION]: The server exposes files from a temporary session directory to provide the browser-based interface. It prevents directory traversal by using path.basename on requested filenames. While it allows binding to all network interfaces (0.0.0.0) via a command-line flag for remote environments, it defaults to the secure loopback interface (127.0.0.1).
[SAFE]: The server implementation includes robust lifecycle management, including randomizing the listening port, monitoring the parent process to avoid orphaned servers, and implementing a 30-minute idle timeout for automatic shutdown.

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