Very contradictory depending on how its used.
Typically, if used in the past tense (e.
g. "You're
cooked!" it means that you did something bad that *will* have consequences. However, there is an edge case: "Bro, you cooked on that!" typically means that you did a really good job. The meaning of the past tense version ("cooked") is very context-dependent.
On the other hand, the present tense ("You're cooking right now!") or some instances of the past
test ("Bruh, he cooked on that shit") is meant as a heavy positive. It means you did your shit / "magic" / brought up something
new that
people really appreciate.