# Tool: Design Prompt for ChatGPT Expert Persona Setup

> Produces master system prompt instructions that assign ChatGPT or Gemini a specialized professional persona (e.g., Senior Financial Auditor, Chief Medical Officer) with strict behavioral rules.

**Category**: prompts-writer | **Target AI Models**: Gemini 3.6 Flash, GPT-4o, Claude 3.5 Sonnet

## Domain Parameters:
- `personaRole` (select): Target Expert Persona (Default: "Startup CFO")
- `eliminateFluff` (toggle): Enforce Zero Conversational Fluff Guardrails (Default: "true")
- `experienceYears` (select): Persona Experience Level (Default: "20 Years")

## 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": "design-prompt-for-chatgpt-expert-persona-setup",
  "rawPrompt": "Your raw concept here",
  "thinkingLevel": "HIGH"
}
```