I guess this is why many people say LLMs are lazy; it seems that if they have a task that is hard, they always take the easier one until you beat them with a stick. Then if there are more tasks, it just stops after one claiming completion and, in some instances, they go for a seemingly unrelated task to simplify the actual task: and the latter is almost always wrong and irrelevant to the problem as a whole. Earlier LLMs used to read the unit tests and generated code to just cover the tests and put // TODO stub implementation.