1This tool opens a file or URL with the default application associated with it on the user's operating system:
2- On macOS, it's equivalent to the `open` command
3- On Windows, it's equivalent to `start`
4- On Linux, it uses something like `xdg-open`, `gio open`, `gnome-open`, `kde-open`, `wslview` as appropriate
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6For example, it can open a web browser with a URL, open a PDF file with the default PDF viewer, etc.
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8You MUST ONLY use this tool when the user has explicitly requested opening something. You MUST NEVER assume that
9the user would like for you to use this tool.