Prompt Engineering Skill

When to Activate

• Writing or refining system prompts for LLM-powered features
• Reviewing a prompt that returns inconsistent or wrong outputs
• Designing tool/function definitions for tool use
• Implementing structured output (JSON mode, response schemas)
• Setting up prompt versioning or regression tests
• Debugging unexpected model behaviour (hallucination, refusals, format drift)

System Prompt Architecture

A well-structured system prompt has four ordered fields. Reihenfolge matters — the model attends more strongly to content near the beginning.