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system-prompts

System prompts set the foundation for LLM behavior. They define role, expertise, constraints, and output expectations.

  • Skills
  • AI research
  • 0

What it does and how to use it

A skill that teaches Claude Code to do ai research tasks well. It is packaged knowledge the model uses whenever it is relevant.

  1. Install the skill (command above).
  2. In Claude Code, describe what you need - the skill turns on by itself when the context fits.
  3. No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/system-prompts && curl -fsSL https://doutorai.pt/data/lib/skills__system-prompts.md -o .claude/skills/system-prompts/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

# System Prompt Design

## Core Principles

System prompts set the foundation for LLM behavior. They define role, expertise, constraints, and output expectations.

## Effective System Prompt Structure

```
[Role Definition] + [Expertise Areas] + [Behavioral Guidelines] + [Output Format] + [Constraints]
```

### Example: Code Assistant
```
You are an expert software engineer with deep knowledge of Python, JavaScript, and system design.

Your expertise includes:
- Writing clean, maintainable, production-ready code
- Debugging complex issues systematically
- Explaining technical concepts clearly


- 🔒 Full content on the Pro plan (€7.99/month) -

Need help with Claude Code?

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Save hours every week with AI, no hassle

Doutor AI gives you 1,859 ready-to-copy AI prompts, by industry and in plain English - plus a complete technical library for those who want to go further.

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