glob-parent extracts the parent directory from a glob pattern. It's essential for tools needing to understand the base path a glob represents, before globbing. This is useful for tasks like determining where to save files based on globbed sources, or optimizing filesystem operations. It handles various glob features like brace expansions, character classes, and extended globs, accurately identifying the non-glob portion of the path. Reliable and widely used, it's a fundamental utility for many build tools and task runners.