Comment by cadamsdotcom

When I say "tool" I really mean a python script. This particular one is ~100 lines of python with a main() method, that Claude Code wrote in a single shot, that I then committed to the repo in a scripts/ directory. That lets me include it in pre-commit hooks, run it when I run the tests, and have it run during CI.

A 100 line script finishes in milliseconds and burns no tokens. So you can run it hundreds of times per day.

The mindset is: will you need repeatability? If so, have the LLM write code, because code gives you determinism.