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---
name: changelog
description: Update a project CHANGELOG.md or equivalent session log with concise notes about completed changes, decisions, and known issues.
---
# Changelog
Use when the user asks to update the changelog, log the session, or record what
changed.
## Workflow
1. Check whether `CHANGELOG.md` exists at the project root.
2. Read the top of the file to match its existing style.
3. Inspect recent relevant commits or diffs if needed.
4. Add a new entry near the top unless the existing changelog uses another
clear ordering.
5. Keep notes public-safe and concise.
6. Commit the changelog only if the user asked for a commit or the local
workflow clearly expects it.
## Default Entry Shape
Use the same headings as the Claude `/changelog` skill so entries look identical
regardless of which tool wrote them:
```markdown
## YYYY-MM-DD
### What changed
- ...
### Decisions made
- ...
### Known issues
- ...
```
Do not include private context, generated runtime paths, or unrelated work.
