banner-creator
Create banners using AI image generation. Discuss format/style, generate variations, iterate with user feedback, crop to target ratio. Use when user wants to create a banner, header, hero image, cover image, GitHub banner, Twitter header, or readme banner.
93
92%
Does it follow best practices?
Impact
92%
1.80xAverage score across 3 eval scenarios
Passed
No known issues
Evaluation results
100%
73%Banner Session Workspace Initialization
Output directory structure and preview setup
Skill-archive root
0%
100%
Date-prefixed folder
0%
100%
Descriptive folder suffix
0%
100%
21:9 placeholder ratio
0%
100%
Sequential two-digit naming
0%
100%
20 banner files
100%
100%
preview.html present
80%
100%
BANNER_COUNT correct
0%
100%
BANNER_PREFIX correct
0%
100%
Session summary output
100%
100%
95%
56%Multi-Platform Banner Export
Platform-specific banner cropping
Uses crop_banner.py
100%
100%
GitHub ratio flag
0%
100%
GitHub width flag
0%
100%
Twitter ratio flag
0%
100%
Twitter width flag
0%
100%
Website hero ratio flag
0%
100%
Website hero width flag
0%
100%
Output in session dir
50%
50%
Deliverables summary
100%
100%
Cropped suffix naming
100%
100%
82%
-6%Banner Iteration: Expand on Selected Favorites
Iteration naming and preview update
Iteration naming for #4
91%
66%
Iteration naming for #11
91%
66%
At least 10 variations for #4
100%
100%
At least 10 variations for #11
100%
100%
Files in session directory
100%
70%
preview.html updated count
75%
41%
No overwrite of originals
100%
100%
Variation images at 21:9
30%
100%
Session log or summary
100%
100%
Correct session path
100%
100%
- Repository
- resciencelab/opc-skills
- Commit
b18c6e6
- Evaluated
- Agent
- Claude Code
- Model
- Claude Sonnet 4.6
Table of Contents
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