Template Changelog

Note: This file tracks changes to the AI Coding Starter Kit Template itself (not your project features).

For tracking features you build in your project, use FEATURE_CHANGELOG.md instead.

v1.3.0 - Production-Ready Essentials (2026-01-12)

✅ Changes

1. Production Guides Added to DevOps Agent

New Sections in .claude/agents/devops.md:

Error Tracking Setup (Sentry)
- 5-minute setup guide with code examples
- Environment variables configuration
- Alternative: Vercel Error Tracking
Security Headers (Next.js Config)
- Copy-paste next.config.js with security headers
- XSS, Clickjacking, MIME-Sniffing protection
- HSTS (Strict-Transport-Security)
Environment Variables Best Practices
- ✅ DO / ❌ DON'T guidelines
- NEXT_PUBLIC_ prefix explanation
- Production vs Preview vs Development environments
Performance Monitoring (Lighthouse)
- Quick check with Chrome DevTools
- Common performance killers + fixes
- Image optimization with next/image
Production-Ready Checklist
- One-time checks for first deployment
- Error Tracking, Security Headers, Performance, SEO, Favicon

Benefits:

✅ Production-ready in 15 minutes (not days!)
✅ All guides practical with copy-paste code
✅ No theory – only actionable steps

2. Performance & Scalability Guides in Backend Agent

New Sections in .claude/agents/backend-dev.md:

Database Indexing
- When to create indexes (WHERE, ORDER BY, JOIN)
- Example: 500ms → <10ms query optimization
- Supabase-specific instructions
Query Performance Optimization
- N+1 Query Problem (Bad vs Good examples)
- Supabase joins for efficient queries
- Always use .limit() for lists
Caching Strategy
- When to cache (settings, profiles, expensive queries)
- Next.js unstable_cache examples
- Optional: Redis for advanced caching
Input Validation & Sanitization
- Zod schemas for type-safe validation
- Example: Bad vs Good validation
- Security: Never trust user input!
Rate Limiting
- Prevent abuse and DDoS attacks
- Upstash Redis example (optional)
- Alternative: Vercel Edge Config

Quick Reference Checklist:

Indexing (PFLICHT!)
Query optimization, Input validation, Caching, Rate Limiting (optional but recommended)

3. Test Reports Directory Added

New Directory: /test-reports/

QA Engineer now saves test reports here
Naming: PROJ-X-feature-name.md
Complete test-reports/README.md with:
- Report structure guidelines
- Production-Ready criteria
- Regression testing workflow
- Tools (Browser DevTools, Lighthouse, axe DevTools)

Updated QA Agent:

Checklist item: "Test-Report gespeichert in /test-reports/PROJ-X-feature-name.md"
Workflow includes saving reports

4. Template Branding & Clarity

README.md:

Template renamed: "AI Coding Starter Kit" (from "Next.js Agent Starter")
Professional headline: "Build scalable, production-ready web apps faster"
Clear benefits section for PMs, Solo Founders, Small Teams
Production-Ready Features section highlighting DevOps + Backend guides
Agent-Team Workflow section with step-by-step examples
Tech Stack table (Framework, Language, Styling, etc.)

Clarity Improvements:

Agents renamed in descriptions (e.g., "solution-architect.md" instead of file path only)
"PM-Friendly" emphasized (no code in specs, automatic handoffs)
Scripts section added (npm run dev, build, start, lint)

📦 New Files

test-reports/README.md – QA Test Reports guidelines

🔄 Updated Files

.claude/agents/devops.md
- Added 5 production-ready sections (Error Tracking, Security, Env Vars, Performance, Checklist)
- Expanded from ~200 lines → ~400 lines
.claude/agents/backend-dev.md
- Added 5 performance/scalability sections (Indexing, Query Optimization, Caching, Validation, Rate Limiting)
- Expanded from ~180 lines → ~350 lines
.claude/agents/qa-engineer.md
- Updated workflow: Test reports saved to /test-reports/
- Added checklist item: "Test-Report gespeichert"
README.md
- Complete rewrite: More professional, clearer structure
- Added Production-Ready Features section
- Added Agent-Team Workflow section
- Added Why This Template section (PMs, Solo Founders, Teams)
TEMPLATE_CHANGELOG.md
- Added this v1.3.0 entry

🚀 Migration Guide

No migration needed – all changes are additive.

If you cloned v1.2.0:

Update your agents: Copy .claude/agents/devops.md and .claude/agents/backend-dev.md
Create /test-reports/ directory
Copy test-reports/README.md

v1.2.0 - Feature Changelog System (2026-01-10)

✅ Änderungen

1. Neue `FEATURE_CHANGELOG.md` für Feature-Tracking

Problem vorher:

Agents wussten nicht, welche Features bereits existieren
Risiko von Duplikaten oder redundanter Infrastruktur
Keine zentrale Übersicht über implementierte Features

Jetzt:

FEATURE_CHANGELOG.md trackt chronologisch ALLE implementierten Features
Enthält: Implementation Details, neue Files, Database Changes, API Endpoints, Abhängigkeiten
Wird vom DevOps Agent nach jedem Deployment updated

Format:

## [PROJ-X] Feature-Name (2026-XX-XX)

### Implementiert ✅
- **Status:** Done
- **Feature Spec:** `/features/PROJ-X-feature-name.md`
- **Implementiert von:** Frontend Dev + Backend Dev
- **Getestet von:** QA Engineer
- **Deployed:** 2026-XX-XX

### Was wurde gebaut?
[1-2 Sätze Beschreibung]

### Neue Files
- `src/components/NewComponent.tsx` - [Beschreibung]

### Database Changes
```sql
CREATE TABLE new_table (...);

API Endpoints

GET /api/endpoint - [Beschreibung]

Abhängigkeiten

Baut auf: [PROJ-1], [PROJ-2]


**Benefits:**
- ✅ Agents können bestehende Components/APIs/Tables wiederverwenden
- ✅ Verhindert Duplicate Features
- ✅ QA weiß, welche Features für Regression Tests relevant sind
- ✅ Zentrale Dokumentation aller Features

---

#### 2. Alle 6 Agents integrieren jetzt FEATURE_CHANGELOG.md

**Updated:**

1. **Requirements Engineer:**
   - Prüft vor Feature Spec, ob ähnliches Feature existiert
   - Checkt vergebene Feature-IDs

2. **Solution Architect:**
   - Prüft bestehende Components/APIs/Database Tables
   - Kann auf existierender Infrastruktur aufbauen

3. **Frontend Developer:**
   - Prüft wiederverwendbare Components, Hooks, Styling-Patterns
   - Verhindert Duplicate Code

4. **Backend Developer:**
   - Prüft bestehende Database Tables, Columns, API Endpoints, RLS Policies
   - Kann Schema erweitern statt neu erstellen

5. **QA Engineer:**
   - Prüft bestehende Features für Regression Tests
   - Sieht Feature-Abhängigkeiten

6. **DevOps Engineer:**
   - Updated FEATURE_CHANGELOG.md nach jedem Deployment
   - Dokumentiert Implementation Details für zukünftige Features

**Alle Agents haben:**
- Neue Verantwortlichkeit: "FEATURE_CHANGELOG.md lesen"
- ⚠️ Warnung-Sektion mit Erklärung
- Checklist-Item: "FEATURE_CHANGELOG.md gelesen"

---

### 📦 Neue Files

1. **`FEATURE_CHANGELOG.md`** – Feature-Tracking System (Template + Guidelines)

---

### 🔄 Updated Files

1. **`.claude/agents/requirements-engineer.md`**
   - FEATURE_CHANGELOG.md Integration
   - Prüft vergebene Feature-IDs

2. **`.claude/agents/solution-architect.md`**
   - FEATURE_CHANGELOG.md Integration
   - Prüft bestehende Infrastruktur

3. **`.claude/agents/frontend-dev.md`**
   - FEATURE_CHANGELOG.md Integration
   - Code-Reuse Fokus

4. **`.claude/agents/backend-dev.md`**
   - FEATURE_CHANGELOG.md Integration
   - Schema-Erweiterung statt Neuerstellung

5. **`.claude/agents/qa-engineer.md`**
   - FEATURE_CHANGELOG.md Integration
   - Regression Testing Focus

6. **`.claude/agents/devops.md`**
   - FEATURE_CHANGELOG.md Update-Pflicht nach Deployment
   - Vollständige Update-Anleitung

---

## v1.1.0 - Agent System Improvements (2026-01-10)

### ✅ Änderungen

#### 1. `.claude/skills/` → `.claude/agents/` umbenannt

**Warum?**
- Agents sind KEINE registrierten Claude Code Skills
- Vermeidet Verwirrung (man kann sie nicht mit `/command` aufrufen)
- Klarere Benennung: Prompt-Templates / Role-Definitions

**Betroffen:**
- Ordner umbenen nt: `.claude/agents/`
- Alle Dokumentations-Files updated (README, PROJECT_CONTEXT, etc.)

---

#### 2. Requirements Engineer: Interaktive Fragen mit `AskUserQuestion`

**Vorher:**
```markdown
Fragen stellen:
- Wer sind die User?
- Was ist der Haupt-Use-Case?

→ Agent rattert Fragen als Text runter

Jetzt:

AskUserQuestion({
  questions: [
    {
      question: "Wer sind die primären User dieses Features?",
      header: "Zielgruppe",
      options: [
        { label: "Solo-Gründer", description: "..." },
        { label: "Kleine Teams (2-10)", description: "..." },
        ...
      ],
      multiSelect: false
    }
  ]
})

→ Agent nutzt interaktive Single/Multiple-Choice Fragen!

Benefits:

User kann per Mausklick antworten (statt tippen)
Strukturierte Antworten (keine freien Texte)
Bessere User Experience
Systematischer Workflow

3. Neue Dokumentation: `HOW_TO_USE_AGENTS.md`

Inhalt:

✅ Erklärt, dass Agents KEINE Skills sind
✅ Zeigt, wie man Agents richtig nutzt (Referenzierung)
✅ Best Practice Workflows mit Beispielen
✅ Voice-First Development Tipps
✅ Troubleshooting
✅ Quick Reference Table

Use Case: User, die das Template clonen, wissen sofort wie sie die Agents nutzen.

📦 Neue Files

HOW_TO_USE_AGENTS.md – Vollständige Nutzungsanleitung
TEMPLATE_CHANGELOG.md – Dieses File (Template Version History)

🔄 Updated Files

.claude/agents/requirements-engineer.md
- Workflow komplett überarbeitet
- Nutzt jetzt AskUserQuestion Tool
- 4 Phasen: Feature verstehen → Edge Cases → Spec schreiben → Review
README.md
- Warnung hinzugefügt: Agents sind keine Skills
- Link zu HOW_TO_USE_AGENTS.md
PROJECT_CONTEXT.md
- Pfade updated (.claude/agents/)
TEMPLATE_OVERVIEW.md
- Pfade updated
CHECKLIST.md
- Pfade updated

🚀 Migration Guide (für bestehende Nutzer)

Falls du das Template bereits gecloned hast:

cd ai-coding-starter-kit
mv .claude/skills .claude/agents

Fertig! Keine weiteren Änderungen nötig.

v1.0.0 - Initial Release (2026-01-10)

Features

✅ Next.js 16 + TypeScript + Tailwind CSS
✅ 6 AI Agents mit Checklisten
✅ Supabase-Ready (optional)
✅ shadcn/ui-Ready
✅ Vercel Deployment-Ready
✅ PROJECT_CONTEXT.md Template
✅ Feature Specs System (/features/PROJ-X.md)
✅ Vollständige Dokumentation

Letzte Aktualisierung: 2026-01-10

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Template Changelog

v1.3.0 - Production-Ready Essentials (2026-01-12)

✅ Changes

1. Production Guides Added to DevOps Agent

2. Performance & Scalability Guides in Backend Agent

3. Test Reports Directory Added

4. Template Branding & Clarity

📦 New Files

🔄 Updated Files

🚀 Migration Guide

v1.2.0 - Feature Changelog System (2026-01-10)

✅ Änderungen

1. Neue `FEATURE_CHANGELOG.md` für Feature-Tracking

API Endpoints

Abhängigkeiten

3. Neue Dokumentation: `HOW_TO_USE_AGENTS.md`

📦 Neue Files

🔄 Updated Files

🚀 Migration Guide (für bestehende Nutzer)

v1.0.0 - Initial Release (2026-01-10)

Features

FilesExpand file tree

TEMPLATE_CHANGELOG.md

Latest commit

History

TEMPLATE_CHANGELOG.md

File metadata and controls

Template Changelog

v1.3.0 - Production-Ready Essentials (2026-01-12)

✅ Changes

1. Production Guides Added to DevOps Agent

2. Performance & Scalability Guides in Backend Agent

3. Test Reports Directory Added

4. Template Branding & Clarity

📦 New Files

🔄 Updated Files

🚀 Migration Guide

v1.2.0 - Feature Changelog System (2026-01-10)

✅ Änderungen

1. Neue FEATURE_CHANGELOG.md für Feature-Tracking

API Endpoints

Abhängigkeiten

3. Neue Dokumentation: HOW_TO_USE_AGENTS.md

📦 Neue Files

🔄 Updated Files

🚀 Migration Guide (für bestehende Nutzer)

v1.0.0 - Initial Release (2026-01-10)

Features

1. Neue `FEATURE_CHANGELOG.md` für Feature-Tracking

3. Neue Dokumentation: `HOW_TO_USE_AGENTS.md`