YouTube thumbnail optimizer

Generate three Rocket League YouTube thumbnail variants with WaveSpeed AI.

Overview

The YT Thumbnail Optimizer generates three variants from a video title using Google's Nano Banana Pro model through WaveSpeed AI. It is configured for GrandgoldRL Rocket League content.

Thumbnail styles

1. Epic Action: rocket-powered car with boost trails, dynamic arena background, explosive particles
2. Minimal Clean: clean gradient, centered Octane, sleek typography, professional esports look
3. Intense Close-up: car at moment of impact, sparks flying, dramatic dark lighting

Prerequisites

Set your WaveSpeed API key:

export WAVESPEED_API_KEY="your-key-here"

Or save to: ~/clawd/skills/wavespeed-nano-banana-pro/.env

Quick start

bash ~/clawd/skills/yt-thumbnail-optimizer/scripts/generate.sh "INSANE Rocket League Saves"

Output

The script saves output to ~/clawd/tmp/thumbnails/:

• thumbnail_1_epic.png
• thumbnail_2_minimal.png
• thumbnail_3_intense.png

Image specifications

Property	Value
Aspect Ratio	16:9 (YouTube standard)
Resolution	2k
Format	PNG
Model	google/nano-banana-pro/text-to-image
API	WaveSpeed AI

Usage examples

# Single video
bash generate.sh "My Crazy Aerial Goal"

# Championship game
bash generate.sh "Grand Champion Ranked Gameplay"

# Tutorial content
bash generate.sh "How to Wall Dash in Rocket League"

Choosing a thumbnail

• Include the game mode (Ranked, Casual, 1v1) in the title for more accurate style
• Action words like "INSANE", "IMPOSSIBLE", "CRAZY" help generate dramatic prompts
• Review all 3 variants, minimal style often works best for tutorial content
• Epic style performs best for highlight reels

Cost

Each run generates 3 images at WaveSpeed pricing:

• 2k resolution: ~$0.14/image = ~$0.42 per run

Files

skills/yt-thumbnail-optimizer/
├── SKILL.md
└── scripts/
    └── generate.sh

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