How do I start inspecting, in a basic way, what a socket is or was doing?

How do I start inspecting, in a basic way, what a socket is or was doing?

Exploring a plist related with a flash pop-up when booting, I found this folders:

launchctl print gui/$(id -u)/com.apple.sharingd

...
    path = /System/Library/LaunchAgents/com.apple.sharingd.plist
    state = running

    program = /usr/libexec/sharingd
    inherited environment = {
        DISPLAY => /private/tmp/com.apple.launchd.NycH5eDM3b/org.xquartz:0
        SSH_AUTH_SOCK => /private/tmp/com.apple.launchd.9u8d0kZoxg/Listeners
    }
...
    properties = keepalive | runatload | supports transactions | system service | exponential throttling
...

This Listeners thing, happens to be a socket (I have no experience at all with sockets). So any attemp to explore it in a file fashion way, failed. How can I do some kind of basic/starting forensic to that socket. Meaning, grabbing it's meaningful dependencies or the things that had done in the system? I need just some kind of starting clue and I will do my best effort to continue by myself.

% cd /private/tmp/com.apple.launchd.9u8d0kZoxg/         
% ls
Listeners
% ls -lrt
total 0
srw-rw-rw-  1 myhost  wheel  0  2 abr 09:05 Listeners
% cat Listeners 
cat: ai_family not supported: Undefined error: 0
cat: Listeners: Invalid argument
% less Listeners 
Listeners is not a regular file (use -f to see it)
% less -f Listeners
Listeners: Operation not supported on socket