Muapi Youtube Thumbnail

This generates YouTube thumbnails optimized for click-through rate using the muapi image API. You feed it your video title, optionally describe a subject or face to feature, and it produces a 16:9 image with high contrast and bold composition. The skill intentionally avoids baking text into the AI-generated image (since model text rendering is unreliable) and instead gives you placement and font recommendations for adding the overlay yourself in Canva or Photoshop. It follows the proven thumbnail formula of emotion-first subjects, rule-of-thirds layout, and oversaturated colors that pop in the YouTube grid. Useful if you're publishing regularly and need a structured starting point instead of guessing at prompts.

skills.sh installs: 1.9K
GitHub stars: 4K
last updated: Aug 21, 2026

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Install

$ npx -y skills add samuraigpt/generative-media-skills --skill muapi-youtube-thumbnail --agent claude-code

Installs into .claude/skills of the current project.

Files

YouTube Thumbnail

Design a high-CTR YouTube thumbnail — striking imagery, bold text placement, and emotional face/subject if needed.

Inputs

Name	Type	Required	Default	Description
`title`	text	yes	—	The video title or topic (e.g. "I tried 7 AI tools in 24 hours — here's what happened").
`channel_style`	text	no	bold, high contrast, bright colors, clean design, YouTube tech aesthetic	Channel brand style (e.g. "dark moody gaming", "bright educational", "minimal corporate").
`subject_description`	text	no	—	Optional description of the person or subject to feature (e.g. "a surprised young man in a hoodie").

Steps

Thumbnails are the #1 factor in YouTube CTR. Generate a single, maximum-impact 16:9 image.

Phase A — Plan the composition

Before generating, briefly reason about the best thumbnail formula for this topic:

Emotion-first: shocked/curious face if relevant + bold text = high CTR
Text overlay: 3–5 words max, high-contrast (white/yellow on dark, or vice-versa)
Contrast & saturation: thumbnails compete in a grid — they must pop