Like in the story about cosmologist and the old lady, you seem to be asking "What is the AI standing on?", and the reply here is of course "You're very clever,

Like in the story about cosmologist and the old lady, you seem to be asking "What is the AI standing on?", and the reply here is of course "You're very clever, young man, very clever, but it's AIs all the way down!" Many already let Claude Code update its own CLAUDE.md, so I don't see any reason why you couldn't (dangerously-skipping-permissions) let it edit its own hooks. And as in Jurassic Park, the question of whether we should seems to be left by the wayside.