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baoyu-skills/skills/baoyu-image-gen/SKILL.md
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2026-01-23 16:10:04 -06:00

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---
name: baoyu-image-gen
description: Generates images using official OpenAI and Google APIs via AI SDK. Supports text-to-image, reference images, aspect ratios, and quality presets. Use when user asks to "generate image with API", "use official API for images", "create image with OpenAI/Google", or needs API-based generation instead of browser-based.
---
# Image Generation (AI SDK)
Official API-based image generation. Supports OpenAI and Google providers.
## Script Directory
**Agent Execution**:
1. `SKILL_DIR` = this SKILL.md file's directory
2. Script path = `${SKILL_DIR}/scripts/main.ts`
## Preferences (EXTEND.md)
Use Bash to check EXTEND.md existence (priority order):
```bash
# Check project-level first
test -f .baoyu-skills/baoyu-image-gen/EXTEND.md && echo "project"
# Then user-level (cross-platform: $HOME works on macOS/Linux/WSL)
test -f "$HOME/.baoyu-skills/baoyu-image-gen/EXTEND.md" && echo "user"
```
┌──────────────────────────────────────────────────┬───────────────────┐
│ Path │ Location │
├──────────────────────────────────────────────────┼───────────────────┤
│ .baoyu-skills/baoyu-image-gen/EXTEND.md │ Project directory │
├──────────────────────────────────────────────────┼───────────────────┤
│ $HOME/.baoyu-skills/baoyu-image-gen/EXTEND.md │ User home │
└──────────────────────────────────────────────────┴───────────────────┘
┌───────────┬───────────────────────────────────────────────────────────────────────────┐
│ Result │ Action │
├───────────┼───────────────────────────────────────────────────────────────────────────┤
│ Found │ Read, parse, apply settings │
├───────────┼───────────────────────────────────────────────────────────────────────────┤
│ Not found │ Use defaults │
└───────────┴───────────────────────────────────────────────────────────────────────────┘
**EXTEND.md Supports**: Default provider | Default quality | Default aspect ratio
## Usage
```bash
# Basic
npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "A cat" --image cat.png
# With aspect ratio
npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "A landscape" --image out.png --ar 16:9
# High quality
npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "A cat" --image out.png --quality 2k
# From prompt files
npx -y bun ${SKILL_DIR}/scripts/main.ts --promptfiles system.md content.md --image out.png
# With reference images (Google multimodal only)
npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "Make blue" --image out.png --ref source.png
# Specific provider
npx -y bun ${SKILL_DIR}/scripts/main.ts --prompt "A cat" --image out.png --provider openai
```
## Options
| Option | Description |
|--------|-------------|
| `--prompt <text>`, `-p` | Prompt text |
| `--promptfiles <files...>` | Read prompt from files (concatenated) |
| `--image <path>` | Output image path (required) |
| `--provider google\|openai` | Force provider (default: google) |
| `--model <id>`, `-m` | Model ID |
| `--ar <ratio>` | Aspect ratio (e.g., `16:9`, `1:1`, `4:3`) |
| `--size <WxH>` | Size (e.g., `1024x1024`) |
| `--quality normal\|2k` | Quality preset (default: normal) |
| `--ref <files...>` | Reference images (Google multimodal only) |
| `--n <count>` | Number of images |
| `--json` | JSON output |
## Environment Variables
| Variable | Description |
|----------|-------------|
| `OPENAI_API_KEY` | OpenAI API key |
| `GOOGLE_API_KEY` | Google API key |
| `OPENAI_IMAGE_MODEL` | OpenAI model override |
| `GOOGLE_IMAGE_MODEL` | Google model override |
| `OPENAI_BASE_URL` | Custom OpenAI endpoint |
| `GOOGLE_BASE_URL` | Custom Google endpoint |
**Load Priority**: CLI args > env vars > `<cwd>/.baoyu-skills/.env` > `~/.baoyu-skills/.env`
## Provider Selection
1. `--provider` specified → use it
2. Only one API key available → use that provider
3. Both available → default to Google
## Quality Presets
| Preset | Resolution | Use Case |
|--------|------------|----------|
| `normal` | ~1024px | Covers, illustrations |
| `2k` | ~2048px | Infographics, slides |
## Aspect Ratios
Supported: `1:1`, `16:9`, `9:16`, `4:3`, `3:4`, `2.35:1`
- Multimodal models: embedded in prompt
- Image-only models: uses `aspectRatio` or `size` parameter
## Error Handling
- Missing API key → error with setup instructions
- Generation failure → auto-retry once
- Invalid aspect ratio → warning, proceed with default
- Reference images with non-multimodal model → warning, ignore refs
## Extension Support
Custom configurations via EXTEND.md. See **Preferences** section for paths and supported options.