Production Prompt Engineering

Overview

This skill addresses the failure modes that appear ONLY in production LLM applications: prompt injection, output format drift, silent regression across model versions, instruction decay in long contexts, and hallucination under pressure. It is NOT a tutorial on few-shot or chain-of-thought — assume the agent already knows basic prompting techniques.

When to Use

Trigger conditions:

• A production LLM feature is misbehaving (inconsistent, unsafe, format-drifting)
• Designing a system prompt for a multi-tenant application
• Hardening prompts against injection or jailbreak attempts
• Diagnosing regression after a model version update

When NOT to use:

• Basic "how do I write a prompt" — the agent already knows few-shot, CoT, role-play
• One-off content generation (just write the prompt directly)
• RAG architecture design (use a RAG-specific skill)