Construct HTTP/HTTPS Tunneling Agents

caw is a JavaScript utility designed to simplify the creation of HTTP/HTTPS agents for tunneling through proxies. It abstracts the configuration of proxy agents by internally utilizing `tunnel-agent` for the tunneling logic and `get-proxy` for automatic discovery of proxy settings from environment variables if a proxy URL is not explicitly provided. The current stable version is 2.0.1. Due to the age of its underlying dependencies (`tunnel-agent` and `get-proxy`), which are themselves largely unmaintained or deprecated, `caw` has seen no recent development and can be considered abandoned. It serves a niche for older Node.js environments (targeting `node >=4`) that require simple proxy agent construction, but modern applications should seek more actively maintained alternatives.