What problem does it solve? Writing effective prompts for LLMs and agents is inconsistent and error-prone, leading to unreliable outputs, wasted tokens, and unpredictable agent behavior in production. ## Core Features & Use Cases - Prompt Patterns Library: Covers few-shot learning, chain-of-thought prompting, template systems, system prompt design, and progressive disclosure with concrete examples. - Agent Prompting Best Practices: Applies Anthropic's guidance on context window management, conciseness, and setting appropriate degrees of freedom for instructions. - Persuasion Principles: Uses seven research-backed principles (authority, commitment, scarcity, social proof, unity, reciprocity, liking) to increase compliance with critical instructions. - Use Case: When writing a new slash command or sub-agent prompt, use this Skill to structure the instruction hierarchy, choose the right freedom level, and add verification steps so the agent follows the workflow reliably. ## Quick Start Use the prompt-engineering skill to review and improve my system prompt for a code review sub-agent.