poster-designer
Create professional posters and visual designs using AI image generation. Supports event posters, product showcases, announcements, and social media graphics. Integrates with Gemini image generation API to create visuals based on templates and user content. Use when the user wants to design posters, generate marketing visuals, create promotional materials, or produce image-based content for events, products, or announcements.
Install via CLI (Recommended)
clawhub install openclaw/skills/skills/andylikescodes/poster-designerPoster Designer Skill
Create professional posters and visual designs using AI image generation.
Quick Start
Generate a poster:
poster create --type event --title "Summer Music Festival" --date "2026-07-15"
Capabilities
- Event Posters — Concerts, conferences, meetups, parties
- Product Showcases — E-commerce listings, feature highlights
- Announcements — Launches, openings, special offers
- Social Media — Instagram, Facebook, Twitter graphics
Usage Patterns
Interactive Mode
Simply describe what you want:
"Create a poster for my band's gig next Friday at the Blue Note"
The skill will ask clarifying questions and generate the poster.
Template Mode
Use predefined templates:
event— General event poster with date/time/locationconcert— Music-focused with band name and setlistproduct— Product showcase with features and pricingannouncement— News/launch announcementsale— Promotional sale poster
Custom Mode
Provide detailed specifications:
"Create a minimalist poster, 1080x1920 (9:16), dark blue background, neon pink text, featuring a geometric guitar illustration"
Configuration
Set your Gemini API key:
export GEMINI_API_KEY="your-api-key"
Or create .env in the skill directory by copying .env.example:
cp .env.example .env
# Edit .env and add your API key
Security Note: Never commit your .env file or share your API key. Keep it in environment variables or secure secret storage.
Get your API key from: https://makersuite.google.com/app/apikey
Output Formats
- PNG — Default high-quality raster output
- With Text Overlay — Generated image with text composited
- Raw + Composite — Both the base image and final poster
Design Principles
Typography
- Keep text readable (minimum 24pt for important info)
- Use 2-3 fonts maximum
- Ensure high contrast between text and background
Composition
- Follow the rule of thirds
- Leave breathing room (don't overcrowd)
- Use visual hierarchy (most important info largest)
Color
- Use complementary or analogous color schemes
- Ensure accessibility (WCAG AA contrast minimum)
- Consider brand colors when provided
API Integration
The skill uses Gemini image generation API with native multimodal capabilities:
- Model:
gemini-3.1-flash-image-preview(configurable) - Supports aspect ratios: 1:1, 4:3, 16:9, 9:16, 3:4
- Output sizes: 1K (~1024px), 2K (~2048px), 4K (~3840px)
See references/api-docs.md for detailed API documentation.
Templates
See references/templates.md for available templates and customization options.
Examples
Event Poster
User: "Create a poster for a tech conference on May 15th"
Skill asks:
- Event name?
- Venue?
- Speaker lineup (optional)?
- Style preference (modern/minimal/bold)?
Metadata
Not sure this is the right skill?
Describe what you want to build — we'll match you to the best skill from 16,000+ options.
Find the right skillPaste this into your clawhub.json to enable this plugin.
{
"plugins": {
"official-andylikescodes-poster-designer": {
"enabled": true,
"auto_update": true
}
}
}