Prompt Engineering

Improve prompts with Claude 4 best practices and subagent testing.

Updated Aug 27, 2026
One-click install
npx skills add https://github.com/mshuffett/dotfiles --skill prompt-engineering-mshuffett
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Prompt Engineering
Source: https://github.com/mshuffett/dotfiles/tree/main/agents/knowledge/atoms/claude-skill-archive/prompt-engineering
Command: npx skills add https://github.com/mshuffett/dotfiles --skill prompt-engineering-mshuffett

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill addresses the challenge of crafting effective prompts by applying advanced techniques to improve clarity, structure, and performance.

Core Features & Use Cases

  • Prompt Optimization: Refines existing prompts, commands, or output styles.
  • Best Practice Application: Implements Claude 4's recommended methods like XML tagging, role-based prompting, and step-by-step reasoning.
  • Testing & Validation: Utilizes a subagent to test improved prompts before finalization.
  • Use Case: Improve a vague customer service prompt to ensure consistent, high-quality responses by adding specific roles, examples, and reasoning steps.

Quick Start

Use the prompt engineering skill to improve the attached prompt for code review.

Frequently Asked Questions about Prompt Engineering

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

FAQPage Schema
How do I optimize prompts for Claude 4 using XML tags?

To optimize prompts for Claude 4, apply XML tags to separate context, instructions, and examples. This structured approach helps the LLM parse distinct sections clearly, resulting in more accurate and predictable model responses.

What is the best way to structure LLM prompts for complex reasoning tasks?

The best way to structure LLM prompts for complex reasoning is incorporating step-by-step instructions and multishot examples. Providing clear reasoning steps guides the model through the logical process, significantly improving output quality.

How do I refine an existing AI prompt to improve output consistency?

You refine an existing AI prompt by applying role-based prompting and adding multishot examples. Defining a specific role and providing sample outputs ensures the AI adheres to a consistent tone and structure.

Can I test prompt improvements before finalizing them?

Yes, you can test prompt improvements using a subagent. The prompt engineering process includes a validation step that runs the refined prompt through a subagent to verify performance before finalization.

Does role-based prompting work for customer service automation?

Role-based prompting works effectively for customer service automation by assigning a specific persona to the AI. This ensures responses maintain a consistent, helpful tone while adhering to defined service guidelines.