Git Metadata

Run these commands in the working directory and return their output; the calling skill decides what to do with it. Flag every file that appears in both churn hotspots and bug clusters as the highest-risk code.

Churn hotspots: the most-changed files in the last year.

git log --format=format: --name-only --since="1 year ago" \
  | sort | uniq -c | sort -nr | head -20

Bus factor: contributors by commit count, all time and recent.

git shortlog -sn --no-merges
git shortlog -sn --no-merges --since="6 months ago"