Skills for Real Engineers. Straight from my .agents directory.
39 skills
banner-creator
Agent skill from
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.
How to install banner-creator
install banner-creator
# install the opc-skills pack with the skills CLI
npx skills add ReScienceLab/opc-skills# or add only this skill to Claude Code: copy the folder
skills/banner-creator/
# into
~/.claude/skills/banner-creator/ (all projects)
.claude/skills/banner-creator/ (one project)
1# Banner Creator Skill23Create professional banners through AI image generation with an iterative design process.45## Prerequisites67**Required API Keys (set in environment):**8- `GEMINI_API_KEY` - Get from [Google AI Studio](https://aistudio.google.com/apikey)910**Required Skills:**11- `nanobanana` - AI image generation (Gemini 3 Pro Image)12131415## File Output Location1617All generated files should be saved to the `.skill-archive` directory:1819```20.skill-archive/banner-creator/<yyyy-mm-dd-summaryname>/21```2223**Example:**24```25.skill-archive/banner-creator/2026-01-19-opc-banner/26 banner-01.png27 banner-02.png28 ...29 banner-03-cropped.png30 preview.html31```3233## Workflow3435### Step 1: Discovery & Requirements3637Before generating, gather requirements from user:3839**Ask about:**401. **Purpose** - Where will the banner be used?41 - GitHub README42 - Twitter/X header43 - LinkedIn banner44 - Website hero45 - YouTube channel art46472. **Target ratio/size** - See [references/formats.md](./references/formats.md):48 - `2:1` (1280x640) - GitHub README49 - `3:1` (1500x500) - Twitter header50 - `16:9` (1920x1080) - Website hero51523. **Style preference**:53 - Match existing logo/brand?54 - Pixel art / 8-bit retro55 - Minimalist / flat design56 - Gradient / modern57 - Illustrated / artistic58594. **Content elements**:60 - Brand name / project name?61 - Tagline / slogan?62 - Logo character to include?63645. **Color preferences**:65 - Existing brand colors?66 - Let AI decide?67…
Excerpt shown under the repository's Apache-2.0 license.
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