name: changelog-manager description: Manages changelog entries following Keep a Changelog format with CalVer versioning. Analyzes changes and generates appropriate changelog descriptions. allowed-tools: Read, Write, Edit, Bash user-invocable: true

Changelog Manager Skill

Purpose

This skill manages changelog entries in CHANGELOG.md following the Keep a Changelog format with Calendar Versioning.

Core Capabilities

1. Changelog Entry Generation

• Analyze current changes and commits
• Generate appropriate changelog descriptions
• Support Korean and English languages
• Extract ticket IDs from branch names
• Follow Keep a Changelog categories

2. Change Analysis

• Review git commits since last release
• Identify changed files and their purposes
• Categorize changes appropriately
• Generate concise but informative descriptions

3. Format Compliance

• Maintain Keep a Changelog format
• Use CalVer (YYYY.MM.MICRO) versioning
• Include JIRA ticket linking
• Preserve existing format and conventions

Versioning Strategy

This plugin uses Calendar Versioning with format YYYY.Minor.Patch.

Examples:

• 2026.1.0 - First minor release in 2026
• 2026.1.1 - First patch release
• 2026.2.0 - Second minor release in 2026

Changelog Categories

Based on Keep a Changelog:

• Added: New features, endpoints, functionality
• Changed: Changes in existing functionality, improvements, updates
• Fixed: Bug fixes, error corrections, issue resolutions
• Deprecated: Soon-to-be removed features
• Removed: Removed features
• Security: Security fixes

Entry Format

- [TICKET-ID](JIRA-URL) Description in specified language

Korean Example:

- [SYN-1234](https://jira.example.com/browse/SYN-1234) 사용자 인증 기능 추가

English Example:

- [SYN-1234](https://jira.example.com/browse/SYN-1234) Add user authentication feature

Workflow

1. Extract Ticket ID

From branch name:

git branch --show-current
# Example: feature/SYN-1234-user-authentication
# Extract: SYN-1234

Pattern: (PROJ-\d+) where PROJ is project prefix

2. Analyze Changes

Review commits:

git log --oneline --since="$(git describe --tags --abbrev=0)"

Review changed files:

git diff --name-status $(git describe --tags --abbrev=0)..HEAD

3. Generate Description

Based on:

• Commit messages
• Changed files
• Code diff analysis
• User input if needed

Guidelines:

• Be concise but informative
• Focus on "what" not "how"
• Use active voice
• Mention affected components

4. Add to CHANGELOG.md

Location: Under ## [Unreleased] in appropriate category

Format:

## [Unreleased] - yyyy-mm-dd

### Added
- [TICKET-ID](JIRA-URL) New feature description

### Changed
- [TICKET-ID](JIRA-URL) Updated feature description

### Fixed
- [TICKET-ID](JIRA-URL) Bug fix description

Parameters

• type: Changelog category (added/changed/fixed/deprecated/removed/security)
• lang: Description language (korean/english)
• ticket: Ticket ID (optional, auto-extracted from branch if not provided)

Integration

This skill is invoked by:

• /add-changelog command - Manual changelog entry addition

Best Practices

Do:

• ✅ Follow Keep a Changelog format
• ✅ Use CalVer versioning
• ✅ Include ticket IDs with links
• ✅ Write clear, concise descriptions
• ✅ Maintain chronological order (newest first)
• ✅ Group related changes together

Don't:

• ❌ Mix multiple unrelated changes in one entry
• ❌ Use vague descriptions
• ❌ Forget ticket ID linking
• ❌ Break existing format
• ❌ Add duplicate entries

Example Usage

Add new feature (Korean):

User: /add-changelog --type added
Skill: Analyzes changes → Generates description → Adds to CHANGELOG.md
Result: - [SYN-1234](URL) 사용자 프로필 이미지 업로드 기능 추가

Fix bug (English):

User: /add-changelog --type fixed --lang eng
Skill: Analyzes changes → Generates description → Adds to CHANGELOG.md
Result: - [SYN-1235](URL) Fix profile image upload validation error

Error Handling

• No ticket ID found: Ask user to provide ticket ID
• CHANGELOG.md not found: Create new CHANGELOG.md with proper format
• No Unreleased section: Add Unreleased section
• Invalid category: Default to "Added" or ask user

File Structure

CHANGELOG.md format:

# Changelog

## [Unreleased] - yyyy-mm-dd

### Added
### Changed
### Fixed

## [2026.1.0] - 2026-01-15

### Added
- Feature 1
- Feature 2

### Changed
- Change 1