I agree that this isn't a very interesting example, but your statement is: "just asking the model to do a simple transform". If you assert that it understand when you ask it things like that, how could anything it produces not fall under the "already in the model" umbrella?

> All of the data is still in the prompt, you are just asking the model to do a simple transform.

LLMs can use data in their prompt. They can also use data in their context window. They can even augment their context with persisted data.

You can also roll out LLM agents, each one with their role and persona, and offload specialized tasks with their own prompts, context windows, and persisted data, and even tools to gather data themselves, which then provide their output to orchestrating LLM agents that can reuse this information as their own prompts.

This is perfectly composable. You can have a never-ending graph of specialized agents, too.

Dismissing features because "all of the data is in the prompt" completely misses the key traits of these systems.