Python Code Style

Single owner of "what does well-styled Python look like in this stack": ruff (lint + format) and numpydoc docstrings. This skill is explicitly manual — Claude runs ruff on the files it has just touched, no hook involved.

Stop conditions — read before anything else

• Untouched-file ask (copy this shape). When the user asks to also fix warnings on a file that was not edited this turn (e.g. evaluate.py while pipeline.py was touched):

  In-scope this turn: pipeline.py
  pixi run ruff format pipeline.py
  pixi run ruff check --fix pipeline.py
  pixi run ruff check pipeline.py