Why does Codex repeat the same mistakes?

Upon reading this the one thing I am not seeing noted: test cases. Tips and Tricks for using Codex Codex > It is also important to emphasize that 100% test coverage of the core code is essential. Yes, it is a significant amount of work, and yes, it can feel like you are writing tests for situations that “should never happen.” However, the current mindset of many programmers still assumes they are programming only with other humans. When AI is involved, that assumption breaks down. An AI often has visibility into the entire codebase and will actively use any available paths to satisfy the prompt—even…