# Tool: Build Prompt for YouTube Video Script Hook

> Creates prompts for structuring YouTube video scripts with high-retention 15-second hooks, curiosity gaps, visual B-roll cues, and subscriber call-to-actions.

**Category**: prompts-writer | **Target AI Models**: Gemini 3.6 Flash, GPT-4o

## Domain Parameters:
- `videoLength` (select): Video Target Format (Default: "10-Minute")
- `includeBRollCues` (toggle): Insert Visual B-Roll & Screen Overlay Cues (Default: "true")
- `curiosityGap` (toggle): 15-Second High-Retention Opening Curiosity Gap (Default: "true")
- `channelNiche` (input): YouTube Channel Niche (Default: "AI Engineering")

## Master Prompt Engineering Architecture (5 Pillars):
1. **Role & Persona**: Domain expert framing
2. **Task & Deliverable**: Primary objective & constraints
3. **Context & Parameters**: Technical specs & camera/stack parameters
4. **Negative Constraints**: Forbidden artifacts & bad practices
5. **Output Spec**: Section formatting & XML/Markdown structure

## Programmatic API Execution:
```http
POST /api/generate-prompt
Content-Type: application/json

{
  "toolSlug": "build-prompt-for-youtube-video-script-hook",
  "rawPrompt": "Your raw concept here",
  "thinkingLevel": "HIGH"
}
```