Automated summary
Guides the user through creating or updating a Claude Code skill following a structured methodology, from concept to packaged distribution.
Strengths
- End-to-end process with automated initialization, editing, and packaging
- Encourages best practices like progressive disclosure and reference files
- Supports creation in multiple locations (project or user skills)
Limitations
- Requires Python and the skill-creator scripts to be pre-installed
- May be overkill for very simple or one-off skills
- Validation relies on the package_skill.py script which may not cover all edge cases
When you want to create a new reusable, well-structured Claude Code skill or improve an existing one.
If you need a very simple skill without scripts or resources, or prefer to manually write the SKILL.md without automation.
Security analysis
SafeThe skill guides users through creating a new Claude Skill using the skill-creator methodology. It only runs trusted initialization and packaging scripts via Bash, and does not execute arbitrary user input or perform destructive/exfiltrating actions. The allowed tools are standard for development tasks, and there are no hidden payloads or security concerns.
No concerns found
How this analysis is madeExamples
/create-skill "api-testing" "Skill for testing REST APIs with automated test generation"/create-skill "debugging"/create-skilldescription: Create a new Claude Skill following best practices. Guides through the complete skill creation process from concept to packaged distribution. allowed-tools: Read, Write, Edit, Bash, Grep, Glob argument-hint: '[skill-name] [description]'
Create Skill
Create a new Claude Skill or update an existing one following the skill-creator methodology: $ARGUMENTS
Instructions
When this command is invoked, use the skill-creator-expert agent to guide the user through creating a skill.
1. Determine Skill Details
If arguments provided:
- Parse skill name and description from
$ARGUMENTS - Use these as starting points
If no arguments:
- Ask the user what skill they want to create
- Gather information about the skill's purpose
2. Follow Skill Creation Process
Use the skill-creator-expert agent which follows the skill-creator skill methodology:
- Understand with Examples: Ask for concrete usage examples
- Plan Resources: Identify scripts, references, and assets needed
- Initialize: Run
init_skill.pyscript to create structure - Edit: Create reusable resources and update SKILL.md
- Package: Validate and package when ready
- Iterate: Improve based on feedback
3. Skill Location
Determine where to create the skill:
- Project skills:
skills/directory in current project - User skills:
~/.claude/skills/directory
If not specified, ask the user which location they prefer.
4. Initialize Skill
Run the initialization script:
python ~/.claude/skills/skill-creator/scripts/init_skill.py <skill-name> --path <output-directory>
This creates:
- Skill directory with proper structure
- SKILL.md template with frontmatter
- Example directories (scripts/, references/, assets/)
5. Guide Content Creation
Help the user:
- Create reusable resources (scripts, references, assets)
- Write SKILL.md with proper structure
- Follow imperative/infinitive writing style
- Include "When to Use" section
- Reference all bundled resources
6. Validate and Package
When the skill is complete:
python ~/.claude/skills/skill-creator/scripts/package_skill.py <skill-path>
This validates the skill and creates a distributable zip file.
Skill Structure
Skills should include:
skill-name/
├── SKILL.md (required)
│ ├── Frontmatter (name, description)
│ └── Instructions (when to use, how to use)
└── [Optional Resources]
├── scripts/ # Executable helper scripts (Python, Bash, etc.)
├── references/ # Documentation references (detailed patterns, checklists, guides)
└── assets/ # Templates, images, fonts, etc.
Reference Files
Reference files (references/) store detailed documentation that would make SKILL.md too long. Use them for:
- Detailed Patterns: Common patterns and examples (e.g.,
references/common_patterns.md) - Checklists: Comprehensive checklists (e.g.,
references/review_checklist.md) - Framework Guides: Framework-specific documentation (e.g.,
references/framework_patterns.md) - API References: API documentation and examples
- Schemas: Database schemas, data structures
How to Reference: In SKILL.md, tell Claude when to load reference files:
- "For detailed patterns, load
references/common_patterns.md" - "When analyzing X, load
references/framework_patterns.mdand refer to section Y"
Examples
Create New Skill
/create-skill "api-testing" "Skill for testing REST APIs with automated test generation"
Update Existing Skill
/create-skill "debugging" # Update existing skill
Best Practices
- Be Specific: Clear descriptions help Claude know when to use the skill
- Progressive Disclosure: Keep SKILL.md lean, use references for details
- Test Examples: Ensure all examples work as documented
- Iterate: Improve based on real usage feedback
Follow the skill-creator skill methodology for creating effective, well-structured skills.
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Step-by-step guide to create a structured Agent Skill for coding agents, including directory structure, SKILL.md format, and design principles.