The `child-process-promise` package adds a thin promise‑based API over Node’s built‑in `exec` and `spawn` methods, letting you launch external commands and retrieve their output with `.then()`/`await` instead of callbacks. It includes optional buffering of stdout/stderr and streams the underlying child process for fine‑grained control. This utility is useful for JavaScript/Node developers who want cleaner, more composable asynchronous process handling—especially when building scripts, build tools, or any code that needs to run shell commands reliably.