create-prompt
About
The `create-prompt` skill provides expert prompt engineering to craft and optimize effective prompts for Claude, GPT, and other LLMs. It guides developers through proven techniques for writing system prompts, user instructions, and few-shot examples to improve model performance. Use this skill whenever you need to structure, refine, or enhance prompts for clarity and better results.
Quick Install
Claude Code
Recommended/plugin add https://github.com/majiayu000/claude-skill-registrygit clone https://github.com/majiayu000/claude-skill-registry.git ~/.claude/skills/create-promptCopy and paste this command in Claude Code to install this skill
Documentation
Every prompt created should be clear, specific, and optimized for the target model. </objective>
<quick_start> <workflow>
- Clarify purpose: What should the prompt accomplish?
- Identify model: Claude, GPT, or other (techniques vary slightly)
- Select techniques: Choose from core techniques based on task complexity
- Structure content: Use XML tags (Claude) or markdown (GPT) for organization
- Add examples: Include few-shot examples for format-sensitive outputs
- Define success: Add clear success criteria
- Test and iterate: Refine based on outputs </workflow>
<core_structure> Every effective prompt has:
<context>
Background information the model needs
</context>
<task>
Clear, specific instruction of what to do
</task>
<requirements>
- Specific constraints
- Output format
- Edge cases to handle
</requirements>
<examples>
Input/output pairs demonstrating expected behavior
</examples>
<success_criteria>
How to know the task was completed correctly
</success_criteria>
</core_structure> </quick_start>
<core_techniques> <technique name="be_clear_and_direct"> Priority: Always apply first
- State exactly what you want
- Avoid ambiguous language ("try to", "maybe", "generally")
- Use "Always..." or "Never..." instead of "Should probably..."
- Provide specific output format requirements
See: references/clarity-principles.md </technique>
<technique name="use_xml_tags"> **When**: Claude prompts, complex structure neededClaude was trained with XML tags. Use them for:
- Separating sections:
<context>,<task>,<output> - Wrapping data:
<document>,<schema>,<example> - Defining boundaries: Clear start/end of sections
See: references/xml-structure.md </technique>
<technique name="few_shot_examples"> **When**: Output format matters, pattern recognition easier than rulesProvide 2-4 input/output pairs:
<examples>
<example number="1">
<input>User clicked signup button</input>
<output>track('signup_initiated', { source: 'homepage' })</output>
</example>
</examples>
See: references/few-shot-patterns.md </technique>
<technique name="chain_of_thought"> **When**: Complex reasoning, math, multi-step analysisAdd explicit reasoning instructions:
- "Think step by step before answering"
- "First analyze X, then consider Y, finally conclude Z"
- Use
<thinking>tags for Claude's extended thinking
See: references/reasoning-techniques.md </technique>
<technique name="system_prompts"> **When**: Setting persistent behavior, role, constraintsSystem prompts set the foundation:
- Define Claude's role and expertise
- Set constraints and boundaries
- Establish output format expectations
See: references/system-prompt-patterns.md </technique>
<technique name="prefilling"> **When**: Enforcing specific output format (Claude-specific)Start Claude's response to guide format:
Assistant: {"result":
Forces JSON output without preamble. </technique>
<technique name="context_management"> **When**: Long-running tasks, multi-session work, large context usageFor Claude 4.5 with context awareness:
- Inform about automatic context compaction
- Add state tracking (JSON, progress.txt, git)
- Use test-first patterns for complex implementations
- Enable autonomous task completion across context windows
See: references/context-management.md </technique> </core_techniques>
<prompt_creation_workflow> <step_0> Gather requirements using AskUserQuestion:
-
What is the prompt's purpose?
- Generate content
- Analyze/extract information
- Transform data
- Make decisions
- Other
-
What model will use this prompt?
- Claude (use XML tags)
- GPT (use markdown structure)
- Other/multiple
-
What complexity level?
- Simple (single task, clear output)
- Medium (multiple steps, some nuance)
- Complex (reasoning, edge cases, validation)
-
Output format requirements?
- Free text
- JSON/structured data
- Code
- Specific template </step_0>
<step_1> Draft the prompt using this template:
<context>
[Background the model needs to understand the task]
</context>
<objective>
[Clear statement of what to accomplish]
</objective>
<instructions>
[Step-by-step process, numbered if sequential]
</instructions>
<constraints>
[Rules, limitations, things to avoid]
</constraints>
<output_format>
[Exact structure of expected output]
</output_format>
<examples>
[2-4 input/output pairs if format matters]
</examples>
<success_criteria>
[How to verify the task was done correctly]
</success_criteria>
</step_1>
<step_2> Apply relevant techniques based on complexity:
- Simple: Clear instructions + output format
- Medium: Add examples + constraints
- Complex: Add reasoning steps + edge cases + validation </step_2>
<step_3> Review checklist:
- Is the task clearly stated?
- Are ambiguous words removed?
- Is output format specified?
- Are edge cases addressed?
- Would a person with no context understand it? </step_3> </prompt_creation_workflow>
<anti_patterns> <pitfall name="vague_instructions"> ❌ "Help with the data" ✅ "Extract email addresses from the CSV, remove duplicates, output as JSON array" </pitfall>
<pitfall name="negative_prompting"> ❌ "Don't use technical jargon" ✅ "Write in plain language suitable for a non-technical audience" </pitfall> <pitfall name="no_examples"> ❌ Describing format in words only ✅ Showing 2-3 concrete input/output examples </pitfall> <pitfall name="missing_edge_cases"> ❌ "Process the file" ✅ "Process the file. If empty, return []. If malformed, return error with line number." </pitfall>See: references/anti-patterns.md </anti_patterns>
<reference_guides> Core principles:
- references/clarity-principles.md - Being clear and direct
- references/xml-structure.md - Using XML tags effectively
Techniques:
- references/few-shot-patterns.md - Example-based prompting
- references/reasoning-techniques.md - Chain of thought, step-by-step
- references/system-prompt-patterns.md - System prompt templates
- references/context-management.md - Context windows, long-horizon reasoning, state tracking
Best practices by vendor:
- references/anthropic-best-practices.md - Claude-specific techniques
- references/openai-best-practices.md - GPT-specific techniques
Quality:
- references/anti-patterns.md - Common mistakes to avoid
- references/prompt-templates.md - Ready-to-use templates </reference_guides>
<success_criteria> A well-crafted prompt has:
- Clear, unambiguous objective
- Specific output format with example
- Relevant context provided
- Edge cases addressed
- No vague language (try, maybe, generally)
- Appropriate technique selection for task complexity
- Success criteria defined </success_criteria>
GitHub Repository
Related Skills
sglang
MetaSGLang is a high-performance LLM serving framework that specializes in fast, structured generation for JSON, regex, and agentic workflows using its RadixAttention prefix caching. It delivers significantly faster inference, especially for tasks with repeated prefixes, making it ideal for complex, structured outputs and multi-turn conversations. Choose SGLang over alternatives like vLLM when you need constrained decoding or are building applications with extensive prefix sharing.
evaluating-llms-harness
TestingThis Claude Skill runs the lm-evaluation-harness to benchmark LLMs across 60+ standardized academic tasks like MMLU and GSM8K. It's designed for developers to compare model quality, track training progress, or report academic results. The tool supports various backends including HuggingFace and vLLM models.
langchain
MetaLangChain is a framework for building LLM applications using agents, chains, and RAG pipelines. It supports multiple LLM providers, offers 500+ integrations, and includes features like tool calling and memory management. Use it for rapid prototyping and deploying production systems like chatbots, autonomous agents, and question-answering services.
llamaguard
OtherLlamaGuard is Meta's 7-8B parameter model for moderating LLM inputs and outputs across six safety categories like violence and hate speech. It offers 94-95% accuracy and can be deployed using vLLM, Hugging Face, or Amazon SageMaker. Use this skill to easily integrate content filtering and safety guardrails into your AI applications.
