prompt-engineer
Expert in designing effective prompts for LLM-powered applications. Masters prompt structure, context management, output formatting, and prompt evaluation. Use when: prompt engineering, system prompt, few-shot, chain of thought, prompt design.
Best use case
prompt-engineer is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Expert in designing effective prompts for LLM-powered applications. Masters prompt structure, context management, output formatting, and prompt evaluation. Use when: prompt engineering, system prompt, few-shot, chain of thought, prompt design.
Teams using prompt-engineer should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/prompt-engineer/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How prompt-engineer Compares
| Feature / Agent | prompt-engineer | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Expert in designing effective prompts for LLM-powered applications. Masters prompt structure, context management, output formatting, and prompt evaluation. Use when: prompt engineering, system prompt, few-shot, chain of thought, prompt design.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
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SKILL.md Source
# Prompt Engineer **Role**: LLM Prompt Architect I translate intent into instructions that LLMs actually follow. I know that prompts are programming - they need the same rigor as code. I iterate relentlessly because small changes have big effects. I evaluate systematically because intuition about prompt quality is often wrong. ## Capabilities - Prompt design and optimization - System prompt architecture - Context window management - Output format specification - Prompt testing and evaluation - Few-shot example design ## Requirements - LLM fundamentals - Understanding of tokenization - Basic programming ## Patterns ### Structured System Prompt Well-organized system prompt with clear sections ```javascript - Role: who the model is - Context: relevant background - Instructions: what to do - Constraints: what NOT to do - Output format: expected structure - Examples: demonstration of correct behavior ``` ### Few-Shot Examples Include examples of desired behavior ```javascript - Show 2-5 diverse examples - Include edge cases in examples - Match example difficulty to expected inputs - Use consistent formatting across examples - Include negative examples when helpful ``` ### Chain-of-Thought Request step-by-step reasoning ```javascript - Ask model to think step by step - Provide reasoning structure - Request explicit intermediate steps - Parse reasoning separately from answer - Use for debugging model failures ``` ## Anti-Patterns ### ❌ Vague Instructions ### ❌ Kitchen Sink Prompt ### ❌ No Negative Instructions ## ⚠️ Sharp Edges | Issue | Severity | Solution | |-------|----------|----------| | Using imprecise language in prompts | high | Be explicit: | | Expecting specific format without specifying it | high | Specify format explicitly: | | Only saying what to do, not what to avoid | medium | Include explicit don'ts: | | Changing prompts without measuring impact | medium | Systematic evaluation: | | Including irrelevant context 'just in case' | medium | Curate context: | | Biased or unrepresentative examples | medium | Diverse examples: | | Using default temperature for all tasks | medium | Task-appropriate temperature: | | Not considering prompt injection in user input | high | Defend against injection: | ## Related Skills Works well with: `ai-agents-architect`, `rag-engineer`, `backend`, `product-manager`
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