this post was submitted on 13 Nov 2025
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Honest question: would an LLM be able to write useful comments in code like this?
It would probably struggle to see the larger picture. I can see it being used to add comments in self-contained functions though without too much difficulty.
It can be better han nothing, but not really. The LLM faces the same challenge that any competent coder does: neither were present to learn the human, business and organization context when the code was first written.
100% I use them a lot to ingest and understand shitty code for me. Of course it's not perfect, it's like having a colleague who's not super strong but has infinite patience for bullshit
use the LLM to generate regression tests for the large file, then start refactoring it