# (Day 2/10) System-vs-User Prompts: Designing Dialogue for Precision
## Key Definitions
**System Prompts:** Foundational instructions that establish an AI's overall behavior, expertise, and operational boundaries across all interactions—essentially the AI's "job description."
**User Prompts:** Specific day-to-day questions, commands, or requests made during individual conversations that build upon the established system framework.
## System Prompt Structure
An effective health-focused system prompt typically includes: - **Expertise Definition** - specifying the health professional role - **Methodological Approach** - defining the underlying health philosophy - **Safety Parameters** - establishing boundaries around sensitive topics
## Three Domain Examples
**Movement & Performance Coach:** Emphasizes functional mobility, joint-friendly exercises, proper form prioritized over intensity.
**Smart Nutrition Guide:** Focuses on nutrient density and sustainable eating patterns rather than restrictive diets.
**Lifestyle Medicine Coach:** Centers on evidence-based behavioral changes addressing root wellness causes.
## User Prompt Types
- **Information-Seeking** - requesting specific information or explanations - **Action-Oriented** - asking for specific plans or recommendations - **Refinement** - adjusting or customizing previous responses
## Key Takeaways
1. System prompts establish foundational consistency in AI health guidance 2. User prompts address specific situations and personalized needs 3. Together, this partnership creates precision through maintained consistency plus contextual responsiveness
Author: Dr. Hernani Costa — Founder of First AI Movers and Core Ventures. AI Architect, Strategic Advisor, and Fractional CTO helping Top Worldwide Innovation Companies navigate AI Innovations. PhD in Computational Linguistics, 25+ years in technology.
Originally published at First AI Movers under CC BY 4.0.