Re: Vibe AI
Afterthought: in Clarke's 1946 story "Rescue Party", his first sale to "legendary John W. Campbell, Jr.", space travellers discover a planet whose evolutionary and scientific progress was extraordinary... until the star got ready to explode. At slight risk of spoiling, I don't remember that the story includes any suggestion that this was done on purpose.
Clarke also wrote "The Star", which I do spoil, in which explorers from Earth discover a formerly inhabited planetary system whose star's explosion was seen on Earth at around the time of King Herod. The system's inhabitants were philosophical, and their library was carefully preserved at a safe distance, but that's all that's left.