youtube-thumbnail-generation_skill

Overview

This skill generates click-worthy YouTube thumbnails optimized for high click-through rates using the each::sense API. It produces 1280x720 thumbnails with expressive faces, bold color palettes, clear text zones, and high-contrast compositions tuned for feed visibility. The output supports multi-turn sessions and A/B variation workflows for consistent channel branding and testing.

How this skill works

Supply a prompt describing the desired thumbnail style, focal expression, colors, lighting, and text placement. The skill uses mode selection (max for final quality, eco for fast iterations) to render images at YouTube thumbnail dimensions. Use session_id to maintain a consistent aesthetic across multiple thumbnails and request variations for A/B testing.

When to use it

• Creating thumbnails for new videos to increase CTR
• Iterating thumbnail concepts quickly with eco mode
• Maintaining a consistent channel brand across multiple videos
• Running A/B tests to compare emotional vs. contextual thumbnails
• Batch-generating thumbnail series (tutorials, reviews, listicles)

Best practices

• Prioritize expressive human faces with exaggerated emotions to attract attention
• Reserve clean empty areas for readable text overlays; avoid clutter behind text
• Use high-contrast, saturated color schemes (yellows, reds, blues) to stand out in feeds
• Always generate at 1280x720 (16:9) and follow the rule of thirds for composition
• Use max mode for final assets and eco mode for rapid concept exploration
• Keep a consistent visual system (colors, fonts, composition) for channel recognition

Example use cases

• Reaction video thumbnail: extreme shocked face, neon contrasting background, text space on the right
• Before/after transformation: split-screen contrast with arrow and text space at top
• Tutorial thumbnail: person pointing at a computer, teal and orange palette, left-side step callouts
• Gaming thumbnail: intense gamer, RGB lighting, action background and corner text space
• Product review: reviewer holding gadget, clean gradient background, subtle rating icon