arxiv.org/abs/2508.06813

arxiv.org/abs/2601.04748

Skills are lazy loaded prompt engineering. Simple, but powerful. Claude sees a one line index entry per skill. You can create hundreds. The full instructions only load when invoked.
Those instructions can reference external scripts that Claude executes without loading the source. You can package...

AI coding models are optimized for one-shot implementation. They perceive ambiguity in instructions that seem clear to humans, then resolve it silently rather than asking. After materializing your plan, stop and ask what it finds ambiguous and resolve through iterative Q&A.