Write Changelog

From git history, Keep a Changelog format by default.

1. Determine the range

From/to: tag, commit, or date (HEAD default); pick a version label. scripts/collect_commits.py --list-tags suggests a base tag.

2. Collect commits

python <skill-dir>/scripts/collect_commits.py --from <base> [--to <target>]

Outputs hash, date, author, subject.

3. Filter noise

Exclude unless asked: merges, CI-only, dep bumps (unless CVE/breaking)

4. Categorize