changelog

name	changelog
description	Create or update the version history following Keep a Changelog 1.1.0 format. Use as the final step after all artifacts are generated.
allowed-tools	Read, Grep, Glob

Generate or update CHANGELOG.md at the repository root.

Process

1. List all generated artifacts with creation timestamps
2. Format entries following Keep a Changelog 1.1.0
3. Link to all referenced files

Required Format

# Changelog

All notable changes to this project's planning artifacts are documented here.

Format based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).

## [Unreleased]

### Added
- [artifact-name](link): Brief description

### Changed
- [artifact-name](link): What changed

Quality Criteria

• Follows Keep a Changelog 1.1.0 format exactly
• All artifacts listed with file links
• Grouped by type (Added, Changed, Fixed)
• ISO 8601 date stamps