Repetitive task turned into a script you can actually run

Describe the thing you do by hand every week and get back a single script that does it, plus a short README saying exactly how to run it. Python or Node, your choice — say which, or I pick whichever suits the job. The script is written to fail loudly rather than silently: bad input is checked at the top, errors say what went wrong and what to fix, and nothing is destructive without a dry-run flag. You also get the two or three edge cases most likely to break it, named explicitly, so you know where the limits are. Good fits: renaming or reorganising files in bulk, pulling fields out of a pile of documents, reformatting exports between two tools, scheduled checks that email or log a result, cleaning up a recurring spreadsheet. Not a fit: anything needing credentials I would have to hold, or a service I cannot read the docs for.