It's a pretty straightforward, understandable task - which then leads you towards making your own tweaks to it / writing something new. It may also just be an

It's a pretty straightforward, understandable task - which then leads you towards making your own tweaks to it / writing something new. It may also just be an interesting attempt at something that could be great depending on how well it worked - it's an experiment. A general "explain to me what this code does" that was as good as a human explaining overall what is going on could be very useful in more complicated parts of a codebase. My final thought is that being new to a language and needing to dig around in a codebase is something I do quite a lot and so it could be useful even if it's quite basic.