Changelog Update Skill

Updates CHANGELOG.md with changes as they happen, not later.

When to Use

After completing a new feature
After fixing a bug
After changing existing behavior
Before committing completed work

When NOT to Use

Planning documents (_tasks/ folder)
Design docs, task plans, brainstorming notes
Internal documentation (CLAUDE.md, DECISIONS.md updates)
Tech debt tracking files
Any documentation that isn't user-visible

Rule: Changelog is for user-visible changes only. Planning and internal docs don't belong.

Changelog Sections (Slovak)

| Section | Slovak | Use For | |---------|--------|---------| | Added | ### Pridane | New features, new capabilities | | Changed | ### Zmenene | Modified behavior, updates to existing features | | Fixed | ### Opravene | Bug fixes, corrections | | Removed | ### Odstranene | Removed features (rare) |

Workflow

1. Read Current Unreleased Section

head -20 CHANGELOG.md

2. Add Entry Under Correct Section

Edit CHANGELOG.md, adding entry under ## [Unreleased]:

## [Unreleased]

### Pridane
- {New feature description}

### Zmenene
- {Changed behavior description}

### Opravene
- {Bug fix description}

3. Create Section If Missing

If the needed section doesn't exist under [Unreleased], add it in this order:

Pridane (Added)
Zmenene (Changed)
Opravene (Fixed)
Odstranene (Removed)

4. Commit With Your Changes

Include changelog update in the same commit as the code change:

git add CHANGELOG.md src/...
git commit -m "feat: {description}"

Writing Good Entries

Do:

Write in Slovak
Be concise (one line per change)
Focus on user-visible impact
Use consistent terminology

Don't:

Include technical implementation details
Mention file names or internal refactoring
Write in English (except technical terms)

Examples

### Pridane
- Export do PDF s prehladom celej knihy jazd
- Moznost vymazat zalohy

### Zmenene
- Predvolene radenie: najnovsie zaznamy hore
- Zlepseny dizajn modalneho okna

### Opravene
- Oprava reaktivity dropdown-u pre vyber roku
- Autocomplete: oprava generovania tras pri uprave jazd

Notes

Update changelog IMMEDIATELY when completing work
Each commit can include a changelog update
Release skill (/release) moves [Unreleased] to versioned section
Write for users, not developers