prompt-engineer

Write, refactor, and evaluate prompt templates for structured outputs.

1|Updated May 16, 2026
One-click install
npx skills add https://github.com/enigmaicon-eng/AI-Enterprise-OS --skill prompt-engineer-enigmaicon-eng
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: prompt-engineer
Source: https://github.com/enigmaicon-eng/AI-Enterprise-OS/tree/main/examples/claude-skills/skills/prompt-engineer
Command: npx skills add https://github.com/enigmaicon-eng/AI-Enterprise-OS --skill prompt-engineer-enigmaicon-eng

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill fixes inconsistent, vague, or inefficient prompts by providing a repeatable workflow for designing, refactoring, and evaluating prompts until they meet measurable quality targets.

Core Features & Use Cases

  • Prompt design & refactoring: Create new prompts or rewrite existing ones for accuracy, clarity, and token efficiency, including roles, guardrails, and output constraints.
  • Structured outputs: Produce reliably parseable results for JSON mode and function-calling schemas, including validation-oriented guidance.
  • Evaluation & regression testing: Build test suites, apply quantitative and LLM-as-judge scoring, detect regressions, and iterate using a controlled one-change-at-a-time loop.
  • Edge-case hardening: Improve robustness against malformed inputs, contradictions, adversarial cases, and context degradation patterns.

Quick Start

Use the prompt-engineer Skill to redesign your current prompt so it returns structured JSON matching your schema, and then verify it using a targeted set of test cases including edge conditions.

Frequently Asked Questions about prompt-engineer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I optimize LLM prompts for consistent structured JSON outputs?

Prompt optimization for structured outputs involves refactoring templates with strict schemas, guardrails, and output constraints to ensure reliably parseable JSON results. This Skill applies validation-oriented guidance and iterative testing to achieve consistent structured generation.

What is the best way to test prompt regressions and evaluate LLM outputs?

Prompt regression testing builds targeted test suites applying quantitative metrics and LLM-as-judge scoring to detect output degradation. You iterate using a controlled one-change-at-a-time loop to measure and verify improvements in LLM output reliability.

How does LLM-as-judge evaluation work for prompt testing?

LLM-as-judge evaluation uses a language model to score prompt outputs against quantitative metrics within a test suite. This automated scoring mechanism detects regressions and guides iterative refinement by quantifying output quality across diverse test cases.

How do I harden LLM prompts against edge cases and malformed inputs?

Edge-case hardening improves prompt robustness against malformed inputs, contradictions, and adversarial cases by applying guardrails and context degradation patterns. Test suites validate prompt behavior under these diverse edge conditions to ensure reliable performance.

Can I use few-shot and chain-of-thought patterns to improve prompt reliability?

Few-shot and chain-of-thought (CoT) patterns are supported prompt optimization techniques for improving LLM output reliability. The Skill refactors existing prompts to incorporate these patterns alongside strict output constraints and role definitions for better accuracy.

What are the limitations of automated prompt optimization for unstructured outputs?

Prompt optimization for unstructured outputs requires strict iterative workflow discipline and diverse adversarial test coverage to validate expected behavior. Despite quantitative metrics, limitations must be documented in production-ready documentation due to inherent LLM unpredictability.