Where can I find all of the "mc.xxxxxx" packets?

[dntdbt]

Where can I find it alike:
mc.thePlayer
mc.theWorld
mc.timer
etc.

Hopefully, in liquidbounce source code

[ohno]

@dont_doubt packets?

[ohno]

so i understood what do you mean, so press RMB on mc and press "Go to superclass".
So, there you will see all variable definitions
method 2: just type mc. and you will see all available variables

[CzechHek]

@dont_doubt https://scriptapi.liquidbounce.net/allclasses-noframe.html

Start by finding class named "Minecraft" and browsing all of its fields and methods.