Hotspot audit

Conflicts concentrate where churn concentrates. This skill finds the files that attract every feature's edits and splits them so future work lands in separate files. It is the retroactive companion to one-feature-one-file, which prevents new hotspots from forming.

Measure

Rank files by how many commits touched them over a recent window:

git log --since="3 months ago" --name-only --pretty=format: | grep -v '^$' | sort | uniq -c | sort -rn | head -25

Cross that against wc -l. The files to act on score high on both: churn times size is a good single ranking. A small script beats eyeballing when the repo is large.