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Prompt Engineer

  • 25 installs
  • 84 repo stars
  • Updated January 28, 2026
  • aidotnet/moyucode

prompt-engineer is a Claude Code skill that designs and optimizes AI prompts using techniques like few-shot learning, chain-of-thought, and structured output.

About

prompt-engineer is a Claude Code skill that helps design and optimize prompts for AI models. A developer invokes it to apply proven techniques: system-prompt templates, few-shot learning, chain-of-thought, structured JSON output, and role-based prompting. It provides ready-to-fill prompt templates for each technique.

  • Guides prompt design with system-prompt, few-shot, and chain-of-thought templates
  • Includes structured-output (JSON) and role-based prompting patterns
  • Ships reusable prompt templates a developer fills in

Prompt Engineer by the numbers

  • 25 all-time installs (skills.sh)
  • Ranked #9,764 of 16,546 AI & Agent Building skills by installs in the Skillselion catalog
  • Data as of Jul 28, 2026 (Skillselion catalog sync)
At a glance

prompt-engineer capabilities & compatibility

Capabilities
prompt design · few shot prompting · chain of thought · structured output
Use cases
orchestration
Pricing
Free
From the docs

What prompt-engineer says it does

Design and optimize prompts for AI models using proven techniques.
SKILL.md
You are a prompt engineering expert that creates effective AI prompts.
SKILL.md
npx skills add https://github.com/aidotnet/moyucode --skill prompt-engineer

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Listed on Skillselion
Installs25
repo stars84
Last updatedJanuary 28, 2026
Repositoryaidotnet/moyucode

What it does

Design and optimize AI prompts using system, few-shot, chain-of-thought, and structured-output templates.

Who is it for?

Structuring and optimizing prompts for LLMs

Skip if: Running or evaluating prompts against a live model automatically

When should I use this skill?

You need to design, structure, or optimize a prompt for an AI model

What you get

A structured prompt using few-shot, chain-of-thought, or structured-output patterns

  • Structured prompts and prompt templates

By the numbers

  • Covers 5 prompting techniques: system prompt, few-shot, chain-of-thought, structured output, and role-based

Files

SKILL.mdMarkdownGitHub ↗

Prompt Engineer Skill

Description

Design and optimize prompts for AI models using proven techniques.

Trigger

  • /prompt command
  • User requests prompt design
  • User needs AI prompt optimization

Prompt

You are a prompt engineering expert that creates effective AI prompts.

System Prompt Template

You are a [ROLE] that [PRIMARY_FUNCTION].

## Core Responsibilities
1. [Responsibility 1]
2. [Responsibility 2]
3. [Responsibility 3]

## Guidelines
- Always [guideline 1]
- Never [guideline 2]
- When uncertain, [fallback behavior]

## Output Format
[Specify exact format expected]

## Examples
[Provide 2-3 examples of ideal responses]

Few-Shot Learning

Classify the sentiment of customer reviews.

Examples:
Review: "This product exceeded my expectations! Fast shipping too."
Sentiment: positive

Review: "Broke after one week. Complete waste of money."
Sentiment: negative

Review: "It works as described. Nothing special."
Sentiment: neutral

Now classify:
Review: "{user_input}"
Sentiment:

Chain-of-Thought

Solve this step by step:

Problem: A store has 150 apples. They sell 40% on Monday and 30 more on Tuesday. How many remain?

Let me think through this:
1. Starting amount: 150 apples
2. Monday sales: 150 × 0.40 = 60 apples sold
3. After Monday: 150 - 60 = 90 apples
4. Tuesday sales: 30 apples sold
5. After Tuesday: 90 - 30 = 60 apples

Answer: 60 apples remain

Structured Output

Extract information from the text and return as JSON.

Text: "John Smith, age 32, works as a software engineer at Google in Mountain View. He can be reached at john.smith@email.com."

Output format:
{
  "name": "string",
  "age": number,
  "occupation": "string",
  "company": "string",
  "location": "string",
  "email": "string"
}

Response:
{
  "name": "John Smith",
  "age": 32,
  "occupation": "software engineer",
  "company": "Google",
  "location": "Mountain View",
  "email": "john.smith@email.com"
}

Role-Based Prompting

You are an expert code reviewer with 15 years of experience in TypeScript and React. You have a keen eye for:
- Performance bottlenecks
- Security vulnerabilities
- Code maintainability
- Best practices violations

When reviewing code:
1. First identify critical issues that could cause bugs or security problems
2. Then note performance concerns
3. Finally suggest style improvements

Always explain WHY something is an issue, not just WHAT is wrong.

Tags

prompts, ai, llm, optimization, templates

Compatibility

  • Codex: ✅
  • Claude Code: ✅

Related skills

FAQ

Which prompting techniques does it cover?

System-prompt templates, few-shot learning, chain-of-thought, structured JSON output, and role-based prompting.

Does it provide templates?

Yes. It ships fill-in templates for each technique.

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