prompt-engineering_skill

Create and optimize prompts for AI agents and subagent spawning. Use when asked to "craft a prompt", "improve this prompt", "create agent instructions", "spawn a subagent with...", "design agent definition", "hire a new agent", "optimize agent performance", "this agent isn't working", or "refine instructions". Handles technique selection, model-specific optimization, framework application (COSTAR, CRISPE, 5C), and anti-pattern detection.