This is correct, but it misses out an important dimension.

You can inject philosophy into the agent and ensure that it sticks to it. The LLM will, with sufficient drilling, begrudgingly implement it, most important of which is SIMPLE>COMPLEX on all levels and you have to either manually or agentically continuously monitor this.

Alternatively, LLM will use its tiny context window to build a true spaghetti that even itself cannot fix any more. This is the default path, and the path that way too many has taken.