How do scripts improve skill performance?

Scripts provide deterministic reliability for repetitive or fragile tasks, allowing the AI to execute code without needing to load the entire logic into the context window.

What is the Progressive Disclosure principle?

It is a design strategy that manages context by only loading essential metadata first, then the SKILL.md body, and finally specific resources only as needed by the AI.

What files are mandatory for a new skill?

Every skill must have a SKILL.md file containing YAML frontmatter (name and description) and Markdown instructions.

What is a Claude Code Skill?

A skill is a modular, self-contained folder that extends Claude's capabilities with specialized knowledge, workflows, and tool integrations, acting as an onboarding guide for specific domains.

When should I use 'Low Freedom' instructions?

Use low freedom instructions when operations are fragile, error-prone, or require a specific, non-negotiable sequence to maintain consistency.

Claude Code Skill Creator

Name: Claude Code Skill Creator
Author: phrazzld

byphrazzld

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Developer Tools

Guides developers in building and optimizing specialized skills to extend Claude Code's domain-specific capabilities.

The Skill Creator provides a comprehensive framework and set of architectural patterns for developing modular, high-performance skills for Claude Code (Codex). It transforms the AI from a general-purpose assistant into a specialized domain expert by providing structured guidance on skill anatomy, context optimization, and progressive disclosure. Whether you are building complex workflows, integrating specific APIs, or embedding company-specific logic, this skill ensures your extensions are token-efficient, deterministic, and easy for the AI to navigate.

Key Features

01Standardized skill anatomy including SKILL.md, metadata, and bundled resources.

02Guidance on integrating deterministic scripts and external reference materials.

03Progressive disclosure design patterns to minimize context window bloat.

04Best practices for defining degrees of freedom in AI-led tasks.

05Step-by-step process for skill initialization, naming, and validation.

061 GitHub stars

Use Cases

01Developing tool integrations that require specific file formats or API knowledge.

02Creating a new domain-specific skill for proprietary corporate workflows.

03Refactoring verbose system prompts into modular, context-efficient skill folders.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add phrazzld/codex-config .system

For use in Claude.ai and ChatGPT

Download Skill