Maybe I'm missing something, but isn't training an LLM very well documented? Why wouldn't an LLM be able to read those docs just like it would read Java Spring docs?
To me this is fundamentally different from having ingested a bunch of docs so it now “knows Java” in its weights.
it probably has however been trained on papers talking about ways they extracted subsets of LLMs as say, the part that knows chess, and would be able to then use similar commands to process the weights