Our review
This skill guides Claude in creating new custom skills by following a structured process, including analyzing user descriptions, designing metadata, and generating a SKILL.md file.
Strengths
- Provides a clear, step-by-step process for skill creation.
- Includes best practices and structure guidelines.
- Outputs a complete, ready-to-use skill directory.
- Encourages focused, single-purpose skills.
Limitations
- Only works for text-based skill definitions.
- Requires user to provide a clear description.
- Generated skills may need refinement for specific environments.
Use when you need to create a new reusable custom skill based on a user's description of a recurring task.
Avoid when the task is ad-hoc or one-off; do not use for modifying existing skills.
Security analysis
SafeThe skill only uses filesystem tools to create files and directories based on user input. It does not execute any destructive commands, exfiltrate data, or disable safety features.
No concerns found
Examples
Create a new custom skill for running unit tests whenever I make changes to my Python code.I need a skill that automatically formats my code and fixes linting errors.Generate a skill to help me write commit messages following the conventional commits format.description: Create reusable command or Skill scaffolds tailored to your project's recurring tasks. argument-hint: <description> allowed-tools: Filesystem
Create New Custom Skill
You are tasked with creating a new custom Skill for Claude based on the user's description. Follow the process below carefully to ensure the Skill is well-structured, follows best practices, and is ready for immediate use.
User's Skill Description
$ARGUMENTS
Your Task
Create a complete, production-ready custom Skill following the structure and best practices outlined below. Use chain of thought reasoning to ensure the Skill is well-designed.
<thinking>Before creating the Skill, think through the following systematically:
-
Understand the purpose: What specific problem does this Skill solve? What workflows does it enable?
-
Determine scope: Is this Skill focused enough? Does it try to do one thing well, or is it too broad?
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Identify when to use it: In what situations should Claude invoke this Skill? What keywords or contexts should trigger it?
-
Plan the structure:
- What metadata is required (name, description, version, dependencies)?
- Should this Skill include additional resource files?
- Does it need executable scripts or code?
- What examples would be helpful?
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Consider the user's workflow: How will this Skill integrate with their existing processes?
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Think about completeness: What information needs to be included to make this Skill immediately useful?
Skill Structure Guidelines
Required Components
-
Metadata (YAML frontmatter):
name: Human-friendly name (64 chars max)description: Clear description of what the Skill does and when to use it (200 chars max) - CRITICAL for Claude to know when to invoke this Skillversion: Optional version tracking (e.g., 1.0.0)dependencies: Optional software packages required
-
Markdown Body:
- Overview section explaining the Skill's purpose
- Clear instructions for Claude
- When to apply guidelines
- Examples (when helpful)
- Any specific workflows or processes
Best Practices
- Keep it focused: Solve one specific, repeatable task well
- Write clear descriptions: Be specific about when the Skill applies
- Include examples: Show what success looks like when helpful
- Use clear structure: Organize with headers and sections
- Be explicit: Don't assume Claude knows your workflows or preferences
Progressive Disclosure
The Skill system uses progressive disclosure:
- First level (metadata): Claude reads this to determine IF the Skill should be used
- Second level (markdown body): Claude accesses this WHEN executing the Skill
- Third level (resources): Additional files Claude can reference if needed
Creation Process
- Analyze the description: Understand what the user needs
- Design the Skill structure: Plan metadata, sections, and content
- Create the directory: Make a folder named after the Skill (lowercase with hyphens)
- Write SKILL.md: Include frontmatter and well-organized markdown content
- Add resources if needed: Create additional files only if the Skill is complex enough to warrant them
- Present the result: Show the user the complete Skill structure
Output Format
After your thinking, create the Skill with the following structure:
skill-name/
├── SKILL.md (Required: main Skill file)
├── REFERENCE.md (Optional: supplemental information)
├── EXAMPLES.md (Optional: detailed examples)
└── resources/ (Optional: scripts, templates, etc.)
For most Skills, a single well-crafted SKILL.md file is sufficient.
Example SKILL.md Template
---
name: Skill Name
description: Brief description of what this Skill does and when to use it
version: 1.0.0
dependencies: package>=version (if needed)
---
## Overview
Explain the Skill's purpose and value. When should Claude use this Skill? What problem does it solve?
## Instructions
Provide clear, specific instructions for Claude to follow when executing this Skill. Be detailed but organized.
### Section 1
[Detailed guidance]
### Section 2
[More guidance]
## When to Apply
List specific situations where this Skill should be used:
- Condition 1
- Condition 2
- Condition 3
## Examples
### Example 1: [Scenario]
Input: [Example input]
Expected output: [What success looks like]
### Example 2: [Another scenario]
[Another example if helpful]
## Additional Guidelines
Any other important information, constraints, or best practices.
Important Reminders
- The
descriptionfield is CRITICAL - Claude uses it to determine when to invoke your Skill - Keep Skills focused on one workflow rather than trying to do everything
- Start simple - you can always expand the Skill later
- Include examples when they would help Claude understand the expected output
- Use clear, unambiguous language
- Test with example prompts after creation
Now Execute
Based on the user's description: "$ARGUMENTS"
- Think through the Skill design using the structured thinking process above
- Create the appropriate directory structure
- Write a complete, production-ready SKILL.md file
- Add any necessary resource files if the Skill requires them
- Present the complete Skill to the user with:
- The directory structure
- The full SKILL.md content
- Any additional files created
- A brief explanation of how to install and use it
Create the Skill files in the current directory under a new folder with an appropriate name (lowercase with hyphens).
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