Claude REFUSES/EVADES all instructions, hooks, mds, skills. Also: Extreme cycling between nonsensical compressed fake English and baby talk

I am a software developer (as in, I coded before LLMs were popular) and use Claude Code and Codex plenty. Its becoming increasingly unusable. Now every single sentence sounds like "Honest pass: 757/757 - green. The seam's the point -- the rule's own sanity