asset-gen

# Asset Generation Skill

Generate professional app assets (icons, splash screens, store graphics) using the Gemini API with iterative refinement and AI-powered evaluation.

## Prerequisites

- Environment variable `GEMINI_API_KEY` must be set
- Python 3.11+ with dependencies installed

Install dependencies:

```bash
pip install -r ~/.claude/skills/asset-gen/requirements.txt
```

## Quick Start

Run the interactive wizard:

```bash
python ~/.claude/skills/asset-gen/scripts/asset_gen.py
```

With options:

```bash
python ~/.claude/skills/asset-gen/scripts/asset_gen.py --project /path/to/project --iterations 3 --variants 3
```

Custom output directory:

```bash
python ~/.claude/skills/asset-gen/scripts/asset_gen.py --output ~/MyAssets
```

Resume an interrupted session:

```bash
python ~/.claude/skills/asset-gen/scripts/asset_gen.py --resume Cloudy_20260116_220000
```

## Workflow Overview

### 1. Project Discovery

The skill auto-detects project type and existing assets:

- **Android**: Parses `build.gradle`, `AndroidManifest.xml`, checks `res/mipmap-*`
- **iOS**: Parses `Info.plist`, checks `Assets.xcassets/AppIcon.appiconset`
- **KMP**: Detects both platforms via `shared/` and platform-specific modules

### 2. Style Extraction

Builds a style profile from multiple sources:

- **Existing assets**: Analyzes colors, shapes from current icons
- **Theme files**: Extracts colors from `colors.xml`, Compose themes
- **Category inference**: Derives defaults from app category (weather = clean, game = bold)
- **Interactive confirmation**: User reviews and can modify the style profile

### 3. Certainty Calculation

AI determines prompt variation strategy based on style completeness:

| Certainty | Condition | Strategy |
|-----------|-----------|----------|
| High (>0.8) | Existing assets + colors + user confirmed | Consistent prompts |
| Medium (0.5-0.8) | Some style data available | Moderate exploration |
| Low (<0.5) | Cold start, minimal context | Wide exploration |

### 4.