One rule
Do not trust an API name just because the AI sounds confident. Treat every new method, import, config key, CLI flag, endpoint, and SDK call as unverified until you check it against your project.
What gets invented
AI coding tools predict likely code. Sometimes they mix versions, copy patterns from another library, or create a clean-looking API that does not exist.
This happens often with fast-moving SDKs, payment gateways, auth libraries, AI APIs, UI components, and framework config. In a hackathon, it can waste your last two hours before demo.