how to read kmst skill change extractions?

type=50 means that it's a buff skill that, when used, shows an icon in the top right of the screen that has a time and maybe a cooldown.

I thought "type=50" was for most passives (such as Mastery, Achilles, Physical Training, etc..)?

I believe "..a buff skill that, when used, shows an icon in the top right of the screen that has a time and maybe a cooldown." for most is "type=10" is it not?, unless, I missed something.

is there any list of the "type=" and what they mean around?

I'm not 100%, but I noticed a trend with skill types:
0x = attack (though, Battle Mastery for BaM's is in here as "type=1")
1x = buff (with an icon at the top right corner)
3x = some type of debuff? (Dispel, Magic Crash, Hero's Will, though Resurrection, Puppet, and Smokescreen are in here as well)
4x = movement (Teleport & Flash Jump)
5x = passive
9x = affects multiple hidden skills? O_O (I'm not too sure on this one. Full Swing and Over Swing for Aran as well as Body Boost for BaM are listed as "type=98") (FS,OS, and BB all have "dummyOf =" listed.)