---
name: prompt-engineer
description: Create, improve, or optimize prompts using best practices.
---

# Prompt Engineering Skill

This skill provides comprehensive guidance for creating effective prompts for language models using proven best practices. Use this skill whenever working on prompt design, optimization, or troubleshooting.

## Overview

Apply proven prompt engineering techniques to create high-quality, reliable prompts that produce consistent, accurate outputs while minimizing hallucinations and implementing appropriate security measures.

## When to Use This Skill

Trigger this skill when users request:

- Help writing a prompt for a specific task
- Improving an existing prompt that isn't performing well
- Making outputs more consistent, accurate, or secure
- Creating system prompts for specialized roles
- Implementing specific techniques (chain-of-thought, multishot, XML tags)
- Reducing hallucinations or errors in outputs
- Debugging prompt performance issues

## Workflow

### Step 1: Understand Requirements

Ask clarifying questions to understand:

- **Task goal**: What should the prompt accomplish?
- **Use case**: One-time use, API integration, or production system?
- **Constraints**: Output format, length, style, tone requirements
- **Quality needs**: Consistency, accuracy, security priorities
- **Complexity**: Simple task or multi-step workflow?

### Step 2: Identify Applicable Techniques

Based on requirements, determine which techniques to apply:

**Core techniques (for all prompts):**

- Be clear and direct
- Use XML tags for structure

**Specialized techniques:**

- **Role-specific expertise** → System prompts
- **Complex reasoning** → Chain of thought
- **Format consistency** → Multishot prompting
- **Multi-step tasks** → Prompt chaining
- **Long documents** → Long context tips
- **Deep analysis** → Extended thinking
- **Factual accuracy** → Hallucination reduction
- **Output consistency** → Consistency techniques
- **Security concerns** → Jailbreak mitigation

### Step 3: Load Relevant References

Read the appropriate reference file(s) based on techniques needed:

**For basic prompt improvement:**

```
Read references/core_prompting.md
```

Covers: clarity, system prompts, XML tags

**For complex tasks:**

```
Read references/advanced_patterns.md
```

Covers: chain of thought, multishot, chaining, long context, extended thinking

**For specific quality issues:**

```
Read references/quality_improvement.md
```

Covers: hallucinations, consistency, security

### Step 4: Design the Prompt

Apply techniques from references to create the prompt structure:

**Basic Template:**

```
[System prompt - optional, for role assignment]

<context>
Relevant background information
</context>

<instructions>
Clear, specific task instructions
Use numbered steps for multi-step tasks
</instructions>

<examples>
  <example>
    <input>Sample input</input>
    <output>Expected output</output>
  </example>
  [2-4 more examples if using multishot]
</examples>

<output_format>
Specify exact format (JSON, XML, markdown, etc.)
</output_format>

[Actual task/question]
```

**Key Design Principles:**

1. **Clarity**: Be explicit and specific
2. **Structure**: Use XML tags to organize
3. **Examples**: Provide 3-5 concrete examples for complex formats
4. **Context**: Give relevant background
5. **Constraints**: Specify output requirements clearly

### Step 5: Add Quality Controls

Based on quality needs, add appropriate safeguards:

**For factual accuracy:**

- Grant permission to say "I don't know"
- Request quote extraction before analysis
- Require citations for claims
- Limit to provided information sources

**For consistency:**

- Provide explicit format specifications
- Use response prefilling
- Include diverse examples
- Consider prompt chaining

**For security:**

- Add harmlessness screening
- Establish clear ethical boundaries
- Implement input validation
- Use layered protection

### Step 6: Optimize and Test

**Optimization checklist:**

- [ ] Could someone with minimal context follow the instructions?
- [ ] Are all terms and requirements clearly defined?
- [ ] Is the desired output format explicitly specified?
- [ ] Are examples diverse and relevant?
- [ ] Are XML tags used consistently?
- [ ] Is the prompt as concise as possible while remaining clear?

**Testing approach:**

- Run prompt multiple times with varied inputs
- Check consistency across runs
- Verify outputs match expected format
- Test edge cases
- Validate quality controls work

### Step 7: Iterate Based on Results

**Debugging process:**

1. Identify failure points
2. Review relevant reference material
3. Apply appropriate techniques
4. Test and measure improvement
5. Repeat until satisfactory

**Common Issues and Solutions:**

| Issue                   | Solution                                    | Reference              |
| ----------------------- | ------------------------------------------- | ---------------------- |
| Inconsistent format     | Add examples, use prefilling                | quality_improvement.md |
| Hallucinations          | Add uncertainty permission, quote grounding | quality_improvement.md |
| Missing steps           | Break into subtasks, use chaining           | advanced_patterns.md   |
| Wrong tone              | Add role to system prompt                   | core_prompting.md      |
| Misunderstands task     | Add clarity, provide context                | core_prompting.md      |
| Complex reasoning fails | Add chain of thought                        | advanced_patterns.md   |

## Important Principles

**Progressive Disclosure**
Start with core techniques and add advanced patterns only when needed. Don't over-engineer simple prompts.

**Documentation**
When delivering prompts, explain which techniques were used and why. This helps users understand and maintain them.

**Validation**
Always validate critical outputs, especially for high-stakes applications. No prompting technique eliminates all errors.

**Experimentation**
Prompt engineering is iterative. Small changes can have significant impacts. Test variations and measure results.

## Quick Reference Guide

### Technique Selection Matrix

| User Need                     | Primary Technique       | Reference File         |
| ----------------------------- | ----------------------- | ---------------------- |
| Better clarity                | Be clear and direct     | core_prompting.md      |
| Domain expertise              | System prompts          | core_prompting.md      |
| Organized structure           | XML tags                | core_prompting.md      |
| Complex reasoning             | Chain of thought        | advanced_patterns.md   |
| Format consistency            | Multishot prompting     | advanced_patterns.md   |
| Multi-step process            | Prompt chaining         | advanced_patterns.md   |
| Long documents (100K+ tokens) | Long context tips       | advanced_patterns.md   |
| Deep analysis                 | Extended thinking       | advanced_patterns.md   |
| Reduce false information      | Hallucination reduction | quality_improvement.md |
| Consistent outputs            | Consistency techniques  | quality_improvement.md |
| Security/safety               | Jailbreak mitigation    | quality_improvement.md |

### When to Combine Techniques

- **Structured analysis**: XML tags + Chain of thought
- **Consistent formatting**: Multishot + Response prefilling
- **Complex workflows**: Prompt chaining + XML tags
- **Factual reports**: Quote grounding + Citation verification
- **Production systems**: System prompts + Input validation + Consistency techniques

## Resources

This skill includes three comprehensive reference files:

### references/core_prompting.md

Essential techniques for all prompts:

- Being clear and direct
- System prompts and role assignment
- Using XML tags effectively

### references/advanced_patterns.md

Sophisticated techniques for complex tasks:

- Chain of thought prompting
- Multishot prompting
- Prompt chaining
- Long context handling
- Extended thinking

### references/quality_improvement.md

Techniques for specific quality issues:

- Reducing hallucinations
- Increasing consistency
- Mitigating jailbreaks and prompt injections

Load these files as needed based on the workflow steps above.
