The Current File plugin enables seamless integration between Obsidian and external tools by exposing the current file being viewed in the desktop application. It automatically generates a JSON file containing the file's path, vault location, and full directory path, which can be accessed by external programs. This functionality allows users to create workflows or scripts, such as updating daily notes, checking link validity, or automating specific tasks based on the current file. The plugin enhances the flexibility of working with Obsidian's markdown files, making it ideal for advanced or custom workflows.