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youtube-thumbnails

Generate, compress, and upload YouTube thumbnails with Google Gemini Pro and ImageMagick.

154|9|Updated Mar 27, 2026
Search Tags:#image generation#youtube#content creation#gemini#thumbnails#image compression#youtube studio
One-click install
npx skills add https://github.com/swyxio/skills --skill youtube-thumbnails
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: youtube-thumbnails
Source: https://github.com/swyxio/skills/tree/main/youtube-thumbnails
Command: npx skills add https://github.com/swyxio/skills --skill youtube-thumbnails

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill eliminates the tedious manual work of designing, resizing, and uploading custom YouTube thumbnails that meet platform size limits and match consistent channel branding for recurring content series like podcast episodes or paper readings.

Core Features & Use Cases

  • AI Thumbnail Generation: Creates custom 1280x720 YouTube thumbnails using Google Gemini Pro, with tailored prompt templates for different content types including tech demos and academic paper readings.
  • Automatic Compression: Resizes and compresses generated images to stay under YouTube's 2MB upload limit automatically using ImageMagick.
  • Guided Studio Upload: Provides step-by-step instructions for uploading thumbnails to YouTube Studio, including macOS file picker automation to speed up the process.
  • Use Case: For a weekly "AI in Action" demo series, use this skill to generate on-brand thumbnails for each episode, compress them to meet YouTube requirements, and upload them directly to the correct videos without manual design work.

Quick Start

Use the youtube-thumbnails skill to generate a custom, on-brand thumbnail for your latest YouTube tech demo video, compress it to meet YouTube's size requirements, and upload it directly to the video's details page in YouTube Studio.

Frequently Asked Questions about youtube-thumbnails

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I automate YouTube thumbnail creation and upload for a recurring series?▼

You can automate YouTube thumbnail creation and upload by using Google Gemini Pro to generate custom 1280x720 images, compressing them with ImageMagick to meet YouTube's 2MB limit, and following guided steps to upload them directly to YouTube Studio.

How do I compress AI generated images to meet the YouTube thumbnail size limit?▼

To compress AI generated images for the YouTube thumbnail size limit, you can use ImageMagick to automatically resize and compress the generated files, ensuring they stay under the 2MB upload requirement before uploading to YouTube Studio.

Can I generate consistent YouTube thumbnails for tech demos and podcast episodes using Gemini?▼

Yes, you can generate consistent YouTube thumbnails for tech demos and podcast episodes using Google Gemini Pro, which applies tailored prompt templates to create on-brand visual thumbnails for recurring content series.

Does this thumbnail generation workflow support macOS file picker automation for YouTube Studio uploads?▼

Yes, this thumbnail generation workflow supports macOS file picker automation for YouTube Studio uploads, providing step-by-step instructions to speed up the process of selecting and uploading your compressed custom thumbnails.

What is the best way to create custom 1280x720 YouTube thumbnails without manual design work?▼

The best way to create custom 1280x720 YouTube thumbnails without manual design work is to use Google Gemini Pro for AI image generation, automatically compress the output with ImageMagick, and follow guided upload steps for YouTube Studio.

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