DOUBLEAGENTD(8) System Manager's Manual DOUBLEAGENTD(8)

doubleagentdA daemon for parsing AppleDouble files in userspace

doubleagentd takes no arguments, and users should not launch it manually.

doubleagentd receives requests from the kernel to parse AppleDouble files (and modify them, if needed). AppleDouble files are used by file systems which do not natively support extended attributes, such as the MS-DOS and ExFAT file systems.

doubleagentd is launched automatically by launchd(8) when the kernel needs to access an AppleDouble file that contains extended attributes for a base file.

/System/Library/LaunchAgents/com.apple.filesystems.doubleagentd.plist

October 31, 2023 macOS 15.0