My money's on that.
I’ve also had some great results with a /reflect skill that asks the agent to look at the work in the broader context of the project. But those are the only two skills I use regularly that aren’t specific to our company, codebase, or tools.
The AI is an expert in both following and generating prompts.
I think that LLMs are trained on the millions of vibe written LLM blog posts that are more superstition than fact. There is a lot of snake oil out there that is treated as fact. If someone claims that an LLM is better than humans at something I always want to see the rigorous evaluations that have been done to quantify it, not "but they're trained on everything!"