New Skill Creator

VerifiedSafe

Creates new Claude Code skills with comprehensive tests using the skill-builder framework.

Sby Skills Guide Bot
DevelopmentIntermediate
406/2/2026
Claude Code
#skill-creation#scaffolding#claude-code#testing

Recommended for

Our review

Creates a new Claude Code skill with a code scaffold and associated tests.

Strengths

  • Automates the creation of skill structure and test files.
  • Offers options for invocability, scope (local/global), and tests.
  • Guides the user step by step with interactive questions.

Limitations

  • Requires the skill-builder framework to be installed.
  • Created files contain placeholders that must be manually filled.
When to use it

When you want to create a new structured Claude Code skill with tests.

When not to use it

If you prefer to write the skill entirely by hand without automation.

Security analysis

Safe
Quality score90/100

The skill runs a predefined scaffold script from a trusted location (~/.claude/agents/skill-builder/scaffold.sh) with no destructive actions, no network access, and no handling of secrets. It is a benign file generation utility.

No concerns found

Examples

Interactive skill creation (local, with tests)
/new-skill
Quick global skill creation with arguments
/new-skill validate-json --global

name: new-skill description: Create a new Claude Code skill with tests user_invocable: true

New Skill Creator

Creates a new Claude Code skill with comprehensive tests using the skill-builder framework.

Instructions

  1. Ask the user for skill details

    • Skill name (kebab-case, e.g., validate-json, create-component)
    • Should it be user-invocable? (can they use /skill-name)
    • Is this for the current repo or global? (--local vs --global)
    • Should we skip test creation? (usually no)
  2. Run the scaffold tool

    ~/.claude/agents/skill-builder/scaffold.sh SKILL_NAME [flags]
    

    Flags:

    • --user-invocable - Make it a slash command
    • --local - Create in current repo's .claude/skills/ (team-shared)
    • --global - Create in ~/.claude/skills/ (default, personal)
    • --no-tests - Skip test file creation
  3. Show what was created

    • List the files created
    • Show the skill file path
    • Show the test file path (if created)
    • Explain next steps
  4. Guide next steps

    • Tell user to edit the [EDIT ME] placeholders
    • Show how to run tests: cd ~/.claude/agents/tests && ./run_tests.sh SKILL_NAME
    • If --local, remind to commit and share with team

Examples

<example> User: "/new-skill" Assistant: "I'll help you create a new skill. What would you like to call it? (use kebab-case like 'validate-json' or 'create-component')" User: "create-component" Assistant: "A few questions: 1. Should this be user-invocable as /create-component? (yes/no) 2. Is this for the current repo only, or global? (local/global) 3. Should I create tests? (yes/no - recommend yes)" User: "yes, local, yes" Assistant: [Runs scaffold.sh create-component --user-invocable --local] "✓ Created skill files: - .claude/skills/create-component.md - .claude/tests/integration/create_component/test_create_component.py

Next steps:

  1. Edit .claude/skills/create-component.md and fill in [EDIT ME] placeholders
  2. Update the test file with specific test cases
  3. Run tests: cd .claude/tests && pytest integration/create_component/ -v
  4. Commit and share with team: git add .claude/skills/ .claude/tests/" </example>
<example> User: "/new-skill validate-json --global" Assistant: [Detects inline arguments, runs scaffold] "✓ Created global skill: - ~/.claude/skills/validate-json.md - ~/.claude/agents/tests/integration/validate_json/test_validate_json.py

This is a global skill (available in all projects). Edit the skill file and fill in the [EDIT ME] placeholders." </example>

Important Notes

  • Naming: Always use kebab-case (my-skill, not MySkill or my_skill)
  • Local vs Global:
    • Local: Repo-specific, shared with team via git
    • Global: Personal, available everywhere
  • User-invocable: Let users call it as /skill-name
  • Tests: Always recommend creating tests

Tool Usage

Use Bash tool to run the scaffold script:

~/.claude/agents/skill-builder/scaffold.sh SKILL_NAME --user-invocable --local

Check current directory to determine if --local makes sense (are we in a git repo?).

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