YouTube Thumbnail Generation
Inputs
Use topic brief, title options, script payoff, target audience, visual style, and any brand constraints.
Process
- Identify the core clickable promise.
- Generate 3-5 thumbnail concepts.
- Choose one primary concept and one fallback.
- Write short thumbnail text only if it adds information.
- Create image prompts or generate the final thumbnail when tools are available.
Output Format
Create thumbnail-brief.md:
# Thumbnail Brief
## Core Promise
## Concepts
| Concept | Layout | Text | Visual Prompt | Why It Works |
|---|---|---|---|---|
## Selected Concept
## Final Prompt
## Checks
Design Rules
- Use one clear focal point.
- Keep text to 0-5 words when possible.
- Make the thumbnail readable at small size.
- Match the title promise; do not imply something the video does not deliver.
- Avoid clutter, tiny labels, and generic shocked-face layouts unless the niche expects it.