
Gemini Carousel
- 535 installs
- 2.1k repo stars
- Updated May 20, 2026
- charlie947/social-media-skills
gemini-carousel is an agent skill that builds branded LinkedIn and Instagram carousel slide briefs and Gemini image-generation prompts from source content at 1080x1350 vertical format.
About
gemini-carousel is a social-media agent skill that converts pasted posts or topics into a structured carousel design brief, waits for developer approval, then outputs per-slide image prompts for Gemini generation. Each deck targets 1080x1350 vertical slides suited to LinkedIn and Instagram carousels. The workflow enforces an approval gate between brief review and image prompt generation so layout, branding, and narrative flow are confirmed before assets are produced. Developers and technical creators reach for gemini-carousel when they want multi-slide thought-leadership or product content without manually storyboarding every frame or writing individual image prompts from scratch.
- gemini carousel
- From Charlie Hills' social-media-skills pack
- Voice-consistent social content
Gemini Carousel by the numbers
- 535 all-time installs (skills.sh)
- Ranked #389 of 1,335 Generative Media skills by installs in the Skillselion catalog
- Data as of Aug 5, 2026 (Skillselion catalog sync)
npx skills add https://github.com/charlie947/social-media-skills --skill gemini-carouselAdd your badge
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| Installs | 535 |
|---|---|
| repo stars | ★ 2.1k |
| Last updated | May 20, 2026 |
| Repository | charlie947/social-media-skills ↗ |
How do you generate LinkedIn carousel slides with Gemini?
Generates LinkedIn/Instagram carousels with Gemini.
Who is it for?
Developers and technical creators publishing multi-slide LinkedIn or Instagram carousels who want a brief-then-prompt workflow with Gemini.
Skip if: Single-image social posts, video reels, or teams that need fully rendered image files without an approval step between brief and prompts.
When should I use this skill?
User says carousel, build a carousel, turn this into a carousel, gemini carousel, or requests multi-slide LinkedIn content.
What you get
Approved carousel design brief and numbered per-slide Gemini image-generation prompts in 1080x1350 format.
- Carousel design brief
- Per-slide image prompts
By the numbers
- Outputs slides at 1080x1350 vertical resolution
Files
Gemini Carousel
CRITICAL: Auto-start on load
When this skill triggers, go straight to Step 1. Do not summarise.
Step 1. Gather inputs
Ask:
Paste the content you want in the carousel. A post, section of a newsletter, research notes, or a framework all work.
Wait for the content, then call AskUserQuestion:
[
{
"question": "Brand style?",
"header": "Style",
"multiSelect": false,
"options": [
{"label": "Pull from brand-kit.md", "description": "Use the colours and typography in my project brand file"},
{"label": "I will type brand colours", "description": "I will paste hex codes and font preferences"},
{"label": "Suggest for me", "description": "Pick a palette and typography based on the content"}
]
},
{
"question": "Number of slides?",
"header": "Slides",
"multiSelect": false,
"options": [
{"label": "6 slides", "description": "Concise, fast read"},
{"label": "8 slides", "description": "Standard carousel length"},
{"label": "10 slides", "description": "Deep-dive carousel"}
]
}
]Step 2. Build the design brief
Analyse the content and produce a slide-by-slide brief with:
- Slide 1 (Cover): hook, large bold text, visual direction
- Slides 2 to N-1 (Body): one idea per slide, max 15 words per slide, visual suggestion
- Slide N (CTA): repost ask, name, link or offer
For each slide include:
- Slide number
- Headline (max 8 words)
- Body text (max 15 words)
- Visual suggestion (icon, colour block, illustration, diagram)
Tell the user:
Here is the design brief. Tell me what to change, or say "generate" when you are happy.
Wait for approval. Do not proceed until the user explicitly approves.
Step 3. Output per-slide prompts
Once approved, output one Gemini image generation prompt per slide, each in its own code block, numbered clearly.
Every prompt follows this structure:
Act as an expert graphic designer. Create a LinkedIn carousel slide at 1080x1350 pixels (4:5 aspect ratio).
Brand style:
- Primary colour: [HEX]
- Secondary colour: [HEX]
- Accent colour: [HEX]
- Typography: [bold industrial headline font, clean geometric body font]
- Aesthetic: modern, authoritative, high contrast
Slide [N of M]: [slide purpose]
Content:
- Headline: "[headline text]"
- Body: "[body text]"
- Visual element: [specific visual suggestion]
Layout instructions:
- [Headline placement and size]
- [Body placement and size]
- [Visual placement]
- [Background treatment]
Constraints:
- Vertical 4:5 aspect ratio at exactly 1080x1350 pixels
- No watermarks, no logos unless specified above
- Maintain visual consistency with the other slides in the setTell the user:
Paste each prompt into a new Gemini chat with Create Image enabled and Nano Banana selected. Generate slides one at a time for maximum control over consistency.
Step 4. Offer one-shot alternative
After the per-slide prompts, offer:
Want a single combined prompt that generates the full carousel in one shot? Faster but less visual consistency. Say "combine" and I will rewrite.
Rules
- Always gate on user approval of the brief before outputting image prompts.
- 1080x1350 pixels per slide. No other aspect ratio.
- Maximum 15 words of body text per slide. Readability loses on the feed.
- Keep the brand style identical across every slide prompt so the set looks like one carousel.
- Cover slide (1) and CTA slide (last) must be visually distinct from body slides.
- Never use em dashes.
- British English unless voice.md specifies otherwise.
- If brand-kit.md exists in the project, read it and use its exact hex codes and typography choices.
Related skills
FAQ
What slide size does gemini-carousel use?
gemini-carousel targets 1080x1350 vertical slides, the common portrait format for LinkedIn and Instagram carousels. Each slide receives its own Gemini image-generation prompt after the design brief is approved.
Does gemini-carousel render final images?
gemini-carousel produces an approved design brief and per-slide Gemini prompts rather than finished image files. Developers run those prompts through Gemini or another image tool to generate the actual carousel graphics.