> an LLM can ingest unstructured data and turn it into a feed.

An LLM can try to do that, yes. But LLMs are lossy compression. RSS feeds are accurate, predictable, and follow a pre-defined structure. Using LLMs to ingest data which can easily be turned into an parseable data structure seems strange: use the LLM to do the "next part" of the formula (comprehension, decision making, etc)

There is also LLMs.txt https://llmstxt.org/ eg https://joshua.hu/llms.txt / https://joshua.hu/llms-full.txt

I imagine a reasonably intelligent coding agent would notice that an RSS feed already exists and use it. Possibly transformed if it's not quite the format you want?

LLMs use up tons of energy and water.