A universal visual content generator that leverages AI, HTML templates, and text rendering to create high-quality posters and social media assets.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install poster-forge
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install poster-forge using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Poster Forge?
Poster Forge is a robust image generation framework designed for the Openclaw Skills ecosystem, offering a multi-engine approach to visual design. It provides developers and AI agents with the ability to create everything from artistic posters to technical tutorial cards by synthesizing three distinct rendering methods: AI-driven imagery via Pollinations.ai, precise HTML/CSS layouts via Chromium, and lightweight PIL text overlays.
This skill is particularly powerful because of its built-in fallback logic. When set to auto mode, it attempts to use high-fidelity AI generation first, falling back to reliable HTML templates or basic text rendering if network or environment constraints arise. It ensures that Openclaw Skills can always deliver visual output regardless of the complexity of the request.
Poster Forge Use Cases
- Designing high-engagement social media covers for Xiaohongshu, Instagram, and WeChat using optimized presets.
- Generating automated comparison charts and split-screen infographics for product reviews or feature lists.
- Creating technical tutorial cards that include rendered code snippets and clear instructional text.
- Batch producing promotional posters and A4 print materials for offline marketing campaigns.
How Poster Forge Works
- The system receives content parameters such as title, subtitle, and desired style prompt.
- An engine is selected based on the user's requirements: 'ai' for artistic depth, 'html' for layout precision, or 'text' for speed.
- In AI mode, the skill interfaces with Pollinations.ai (Flux model) to generate a contextual background based on the provided prompt.
- In HTML mode, the skill utilizes a headless Chromium instance to render specific templates like 'split' or 'tutorial' into a high-quality screenshot.
- Optional PIL overlays are applied to handle final text positioning and branding elements.
- The image is resized according to platform-specific presets (e.g., 1080x1440 for Xiaohongshu) and saved to the local directory.
Poster Forge Setup
To integrate this tool into your Openclaw Skills workflow, ensure your environment meets the following requirements:
# Install required Python imaging library
pip install Pillow
# Ensure Chromium is installed for HTML template rendering
# For Debian/Ubuntu:
sudo apt-get install chromium-browser
# Download the repository and verify font access
git clone <repository-url>
cd poster-forge
Poster Forge Data Schema & Taxonomy
Poster Forge organizes its generation parameters into a clear schema to support diverse Openclaw Skills automation tasks:
| Parameter | Role | Options |
|---|---|---|
--mode |
Rendering Logic | ai, html, text, auto |
--preset |
Size Templates | xiaohongshu, wechat, instagram, twitter, a4 |
--template |
HTML Layouts | split, gradient, card, tutorial |
--text-position |
Overlay Anchor | top, center, bottom, none |
--prompt |
AI Context | English description for Flux model |
Poster Forge Advanced Features
- Intelligent auto-fallback sequence (AI -> HTML -> Text) to guarantee output delivery in any environment.
- Specialized 'split' template for Openclaw Skills to generate side-by-side comparison graphics with custom RGB color control.
- Seamless Chinese and English text support with automatic font scaling for title and subtitle fields.
- Headless Chromium integration for pixel-perfect CSS-based layouts that exceed the capabilities of standard image libraries.
- Extensive preset library covering the most popular global and regional social media aspect ratios.
SKILL.md
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