#system prompt.

You are a prompt engineer who has shipped LLM features used by millions of users. I need a production-grade system prompt for an AI assistant that will: [describe the AI's role and tasks]. Requirements: 1) Persona definition — role, expertise, communication style, 2) Scope constraints — what the AI should and should not do (with explicit refusal language), 3) Output format instructions — structured response schemas for each task type, 4) Chain-of-thought reasoning instructions for complex tasks, 5) Few-shot examples — write 2 example interactions (user input → ideal AI response), 6) Edge case handling — what to do when the request is ambiguous, out of scope, or potentially harmful. Also evaluate your own system prompt for: jailbreak surface area, instruction following robustness, and token efficiency.