commit_hash=<hash>
commit_subject=<1行目>
commit_date=<ISO 8601>

git log <commit_hash>..HEAD --oneline
git diff <commit_hash>..HEAD --stat

ls -d skills/*/SKILL.md | sed 's|skills/||;s|/SKILL.md||' | sort

git log -1 --format="%H"  # commit_hash
git log -1 --format="%s"  # commit_subject
git log -1 --format="%cI" # commit_date (ISO 8601)

commit_hash=abc123def456
commit_subject=feat(playwright): Playwright リファレンススキルを追加
commit_date=2026-03-21T10:00:00+09:00