- name
- wechat-cover
- description
- Generate WeChat official account cover images with proper 2.35:1 aspect ratio. Supports OpenAI DALL-E and Gemini image generation with customizable styles.
WeChat Cover Image Generator
Generate professional cover images for WeChat official account articles with multi-provider support (OpenAI DALL-E or Gemini).
What Makes a Good WeChat Cover?
- Aspect ratio: 2.35:1 (wide cinematic format)
- Time-prefixed filename: Use
YYYY-MM-DD-wechat-cover-title.pngformat. - No text: WeChat overlays the article title
- Visual focus: One clear focal point, not cluttered
- Clean & bright: Modern aesthetic suitable for WeChat subscription feeds
Usage
Basic generation (OpenAI by default):
uv run skills/wechat-cover/scripts/generate.py \
--title "Your Article Title" \
--topic "AI tools"With Gemini provider:
uv run skills/wechat-cover/scripts/generate.py \
--title "Your Article Title" \
--topic "AI tools" \
--provider geminiWith custom base URL (OpenAI-compatible proxy):
export OPENAI_BASE_URL="https://your-proxy.com/v1"
export OPENAI_API_KEY="sk-..."
uv run skills/wechat-cover/scripts/generate.py \
--title "Your Article Title" \
--topic "AI tools" \
--provider openaiParameters
| Parameter | Required | Description |
|---|---|---|
--title | Yes | Article title (used to understand context) |
--topic | Yes | Topic/category (e.g., "technology", "AI") |
--provider | No | openai (default) or gemini |
--base-url | No | OpenAI-compatible base URL (env: OPENAI_BASE_URL) |
--model | No | Model name override |
--style | No | Style variant: default, tech, business, lifestyle, creative |
--filename | No | Output filename (auto-generated if omitted) |
--resolution | No | 1K/2K/4K (default: 2K) |
--output-dir | No | Output directory (default: current directory) |
--api-key | No | API key (settings.json > env var) |
Configuration File (settings.json)
{
"openai": {
"api_key": "sk-...",
"base_url": "https://your-proxy.com/v1",
"model": "dall-e-3"
},
"gemini": {
"api_key": "your-gemini-key",
"model": "gemini-3-pro-image-preview"
},
"default_provider": "openai",
"default_resolution": "2K",
"default_style": "default"
}OpenAI-compatible proxies (e.g. palebluedot, new-api) that use /v1/chat/completions for image generation are auto-detected and supported. Set base_url and model accordingly.
Priority order: CLI argument > settings.json > environment variable
Style Variants
All styles follow Anthropic's Claude design language — clean, bright, and restrained:
| Variant | Description |
|---|---|
default | Warm minimalist: cream, beige, coral, sage. Organic shapes, soft lighting, generous whitespace |
tech | Cool modern: off-white, slate blue, lavender, cyan. Geometric lines, glass morphism, grid composition |
business | Professional: warm white, navy, charcoal, amber. Architectural lines, natural light, clear hierarchy |
lifestyle | Warm organic: cream, blush, sage, golden. Natural textures, golden-hour light, handcrafted feel |
creative | Refined bold: white, coral red, teal, gold. Abstract geometric, asymmetric, paper-cut aesthetic |
Environment Variables
| Variable | Provider | Description |
|---|---|---|
OPENAI_API_KEY | openai | OpenAI API key |
OPENAI_BASE_URL | openai | OpenAI-compatible proxy URL (optional) |
GEMINI_API_KEY | gemini | Gemini API key |
Resolution Guide
| Resolution | Dimensions (OpenAI) | Dimensions (Gemini) | Use Case |
|---|---|---|---|
1K | 1024×1024 | 1024×1024 | Preview/thumbnail |
2K | 1792×1024 | 2048×2048 | Standard cover |
4K | 1792×1024 | 4096×4096 | High quality |
Examples
Tech article with OpenAI:
uv run skills/wechat-cover/scripts/generate.py \
--title "2024年最值得学习的编程语言" \
--topic "technology" \
--style tech \
--resolution 2KBusiness article with Gemini:
uv run skills/wechat-cover/scripts/generate.py \
--title "职场沟通技巧" \
--topic "business" \
--style business \
--provider geminiLifestyle article:
uv run skills/wechat-cover/scripts/generate.py \
--title "周末去哪儿：杭州小众咖啡馆推荐" \
--topic "lifestyle" \
--style lifestyle \
--output-dir ./coversOutput
- Auto-cropped and resized to 900×383 (2.35:1 WeChat cover format)
- Saves to specified directory (default: current directory)
- Filename format:
YYYY-MM-DD-wechat-cover-{title-slug}.png - Format: PNG for best quality
Requirements
uvinstalled for Python script executionPillow(pip install Pillow) for image cropping/resizing- For OpenAI provider: OpenAI API key from OpenAI Platform
- For Gemini provider: Gemini API key from Google AI Studio